Quantitative analysis method for impact action characteristics of forging hammer based on pulse function

Abstract

The invention discloses a method for quantitatively analyzing the striking action characteristics of a forging hammer based on a pulse function. The method comprises the following steps: acquiring a hitting power average value formula, wherein the formula is # imgabs0 #; according to the unit pulse function and a hitting power average value formula, obtaining a hitting power average value integral formula; the impact force peak value expression is obtained according to the pulse peak value factor, the rebound coefficient and the influence coefficient, the formula is # imgabs 1 #, # imgabs 2 # is the impact force peak value, # imgabs 3 # is the influence coefficient, # imgabs 4 # is the pulse peak value factor, # imgabs 5 # is the hammer head mass, # imgabs 6 # is the hammer head impact speed, # imgabs 7 # and # imgabs 8 # are the mass ratio, # imgabs 9 # is the reciprocal of the mass ratio, # imgabs 10 # is the base group mass, and the base group mass comprises equipment and base mass. According to the invention, the problem of large calculation error of the hitting power of the forging hammer in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering analysis, and more particularly, to a quantitative analysis method for the forging hammer impact characteristics based on impulse functions. Background Art

[0002] Forging hammers do play an important role in the field of metal processing, especially in applications that require high-energy forming. Through forging hammer processing, metal materials can be rapidly formed under high-energy impacts, which has significant advantages for improving production efficiency and product quality. Forging hammers are widely used in various metal processing fields, especially in situations that require high-energy forming. It can not only improve production efficiency but also enhance material properties, meeting the diverse needs of different industries for metal components, such as shipbuilding, automotive, aviation, aerospace, tool manufacturing, and other industries.

[0003] A forging hammer is a mechanical device used for metal processing, mainly applied in processes such as forging, compressing, and forming. To improve production efficiency and product quality, it is necessary to select an appropriate type of forging hammer according to specific processing requirements and material characteristics. There are many types of forging hammers. Classified by impact characteristics, there are counterblow hammers and hammers with anvil blocks; classified by process uses, there are open-die forging hammers, die forging hammers, and sheet metal stamping hammers; classified by the force acting on the falling part during the downward stroke, there are single-acting hammers and double-acting hammers. When a single-acting hammer works, the falling part is in free fall; when a double-acting hammer is in the downward stroke, the falling part is affected not only by gravity but also by the action of compressed air or hydraulic pressure.

[0004] The analysis of the forging hammer impact force is a complex topic. The types of collisions involved in the working process of forging hammers are diverse, ranging from elastic collisions to plastic collisions, and then to elastoplastic collisions and rigid collisions. Different types of collisions will have different effects on the magnitude, shape, and duration of the impact force, making the accurate analysis and modeling of the impact force extremely challenging.

[0005] Conventional analysis methods for forging hammer impact forces usually rely on basic principles such as Newton's second law and energy conservation to describe the collision process. However, these methods may focus more on the macroscopic energy and force transfer and neglect the microscopic details in the specific collision process, such as the deformation of objects and the nonlinear response of materials. Therefore, when dealing with complex systems like forging hammers, it is necessary to consider the material behavior and deformation process under different types of collisions.

[0006] Referring to the concept of impact rigidity given in the "Forging Handbook", the entire impact process can be divided into two stages: the loading stage and the recovery stage.

[0007] In long-term engineering practices, technicians have realized that there are certain deviations in existing calculation methods, especially significant differences in the prediction of impact forces. Therefore, we organized a forging hammer impact force test, and the test results further showed that the actually measured impact force is about twice as large as the value obtained by existing calculation methods.

[0008] If the calculated impact force is too small, it will lead to the equipment bearing a load much higher than expected, thereby causing damage to machine parts, triggering equipment failures, and premature wear. Moreover, insufficient estimation of the vibration and impact effects will also affect the safety and normal use of the equipment foundation and adjacent workshops, as well as the tranquility of the surrounding social living environment.

[0009] Regarding the above problems existing in the related technologies, no effective solutions have been proposed yet. Summary of the Invention

[0010] The main purpose of this application is to provide a quantitative analysis method for the forging hammer impact characteristics based on impulse functions, so as to at least solve the problem of large calculation errors of forging hammer impact forces in related technologies.

[0011] To achieve the above purpose, according to one aspect of this application, a quantitative analysis method for the forging hammer impact characteristics based on impulse functions is provided. The method includes: obtaining an average impact force formula, and the formula is: , where is the average impact force, is the first time corresponding to the first stage of the forging hammer impact, is the impact force function; based on the unit impulse function and the average impact force formula, obtaining an average impact force integral formula, where the unit impulse function includes a post-peak tooth-shaped pulse, a symmetric triangular pulse, a versine pulse, a sine half-wave pulse, and a rectangular pulse, and one unit impulse function corresponds to one average impact force integral formula; obtaining an impact force peak expression based on the pulse peak factor, the rebound coefficient, and the influence coefficient, and the formula is , where is the impact force peak, is the influence coefficient, is the pulse peak factor, is the mass of the hammer head, is the impact speed of the hammer head, , is the mass ratio, is the reciprocal of the mass ratio, is the mass of the base group, and the mass of the base group includes the mass of the equipment and the foundation.

[0012] Optionally, obtaining the impact force function, and the formula is: , is the impact force function, is the unit impulse function, is the peak impact force.

[0013] Optionally, five unit impulse functions are obtained, where the unit impulse function includes the formula for the post-peak tooth-shaped pulse as: , the formula for the symmetric triangular pulse is , the formula for the versine pulse is: , the formula for the sine half-wave pulse is: , the formula for the rectangular pulse is: .

[0014] Optionally, the integral total formula of the average impact force is obtained according to the average impact force formula. When , the integral total formula of the average impact force is: , where is the first time corresponding to the first stage of the forging hammer strike, is the strike duration, is the average impact force, is the peak impact force, is the unit impulse function.

[0015] Optionally, substituting the unit impulse function into the integral total formula of the average impact force, the integral formula of the average impact force is obtained, including: the integral formula for the post-peak tooth-shaped pulse: , the integral formula for the symmetric triangular pulse: , the integral formula for the versine pulse: , the integral formula for the sine half-wave pulse: , the integral formula for the rectangular pulse: , .

[0016] Optionally, the relationship between the pulse peak and the average impact force is obtained according to the unit impulse function, and the formula is , where is the peak impact force, is the pulse peak factor, is the average impact force, and one unit impulse function corresponds to one pulse peak factor.

[0017] Optionally, the rebound coefficient is obtained, and the influence coefficient is obtained according to the rebound coefficient. The formula is , where is the influence coefficient, is the rebound coefficient.

[0018] According to another aspect of the present application, a quantitative analysis device for the forging hammer strike action characteristics based on the impulse function is provided. The device includes: a first acquisition unit for acquiring the average impact force formula, and the formula is: , where is the average impact force, is the first time corresponding to the first stage of the forging hammer strike, is the impact force function; a second acquisition unit, configured to obtain an average impact force integral formula according to the unit impulse function and the average impact force formula, where the unit impulse function includes a post-peak tooth-shaped pulse, a symmetric triangular pulse, a versine pulse, a sine half-wave pulse, and a rectangular pulse, and one unit impulse function corresponds to one average impact force integral formula; a third acquisition unit, configured to obtain an impact force peak expression according to the pulse peak factor, the resilience coefficient, and the influence coefficient, and the formula is where, is the impact force peak, is the influence coefficient, is the pulse peak factor, is the mass of the hammer head, is the striking speed of the hammer head, , is the mass ratio, is the reciprocal of the mass ratio, is the mass of the base group, and the mass of the base group includes the mass of the equipment and the foundation.

[0019] To achieve the above object, according to another aspect of the present application, there is provided a computer-readable storage medium, which includes a stored program, where the program executes a quantitative analysis method for the forging hammer strike action characteristics based on the impulse function as described in any one of the above.

[0020] According to another aspect of the present application, there is provided an electronic device, including: one or more processors, a memory, and one or more programs, where one or more programs are stored in the memory and are configured to be executed by one or more processors, and one or more programs include a quantitative analysis method for the forging hammer strike action characteristics based on the impulse function as described in any one of the above.

[0021] Through the present application, the following steps are adopted: obtaining an average impact force formula, and the formula is: where, is the average impact force, is the first time corresponding to the first stage of the forging hammer strike, is the impact force function; obtaining an average impact force integral formula according to the unit impulse function and the average impact force formula, where the unit impulse function includes a post-peak tooth-shaped pulse, a symmetric triangular pulse, a versine pulse, a sine half-wave pulse, and a rectangular pulse, and one unit impulse function corresponds to one average impact force integral formula; obtaining an impact force peak expression according to the pulse peak factor, the resilience coefficient, and the influence coefficient, and the formula is where, is the impact force peak, is the influence coefficient, is the pulse peak factor, is the hammer head mass, is the hammer head striking speed, , is the mass ratio, is the reciprocal of the mass ratio, is the mass of the base group, and the mass of the base group includes the mass of the equipment and the foundation, solving the problem of large calculation error of the forging hammer striking force in the related technology, and further achieving the effect that when the forging hammer strikes different objects, the corresponding pulse form can be found, and the forging hammer striking force can be described by the pulse function. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 is a flowchart of a method for quantitatively analyzing the forging hammer striking action characteristics based on a pulse function according to an embodiment of the present application;

[0024] Figure 2 is a schematic diagram of the forging hammer striking process;

[0025] Figure 3 is the time domain curve of the pulse function;

[0026] Figure 4 is the curve graph of the peak value and the mean value of the rectangular pulse function striking force;

[0027] Figure 5 is the curve graph of the peak value and the mean value of the sine pulse function striking force;

[0028] Figure 6 is the curve graph of the peak value and the mean value of the versine, triangular, and post-peak pulse function striking forces;

[0029] Figure 7 is the curve graph of the peak value and the mean value of the measured and fitted pulse function striking force;

[0030] Figure 8 is a structural block diagram of a device for quantitatively analyzing the forging hammer striking action characteristics based on a pulse function according to an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The following will describe the present application in detail with reference to the accompanying drawings and in combination with the embodiments.

[0032] In order to enable those skilled in the art to better understand the solution of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0033] It should be noted that the terms "first", "second", etc. in the description and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present application described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0034] As introduced in the background art, when a forging hammer strikes in the prior art, only the average striking force of the forging hammer can be analyzed, and the precise force of the forging hammer strike cannot be accurately analyzed. To solve the problem of large calculation errors in the forging hammer striking force, the embodiments of the present application provide a quantitative analysis method for the forging hammer striking action characteristics based on the impulse function.

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention.

[0036] In this embodiment, a quantitative analysis method for the forging hammer striking action characteristics based on the impulse function running on a mobile terminal, a computer terminal or a similar computing device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0037] Figure 1 is a flowchart of a quantitative analysis method for the forging hammer striking action characteristics based on the impulse function according to the embodiments of the present application. As Figure 1 shown, the method includes the following steps:

[0038] Step S101, obtaining the average value formula of striking force, the formula is: ,in, is the average striking force, The first time corresponding to the first stage of the forging hammer strike, is the striking force function;

[0039] Specifically, the relationship between the pulse function and the average striking force can be used to obtain the average striking force formula, where is the striking force function, .

[0040] Step S102, obtaining an integral formula for the average striking force value according to a unit pulse function and an average striking force formula, wherein the unit pulse function includes a rear peak tooth-shaped pulse, a symmetrical triangle pulse, a sine pulse, a half-wave sinusoidal pulse, and a rectangular pulse, and one unit pulse function corresponds to one integral formula for the average striking force value;

[0041] Specifically, by combining different unit pulse functions with the striking force average value formula, the striking force average value formula corresponding to each unit pulse function can be obtained.

[0042] Step S103, obtaining the peak expression of striking force according to the pulse peak factor, the rebound coefficient and the influence coefficient, the formula is: ,in, is the peak striking force, is the influence coefficient, is the pulse peak factor, is the hammer mass, is the hammer striking speed, , is the mass ratio, is the inverse of the mass ratio, is the basis set quality, which includes the equipment and foundation quality.

[0043] Specifically, the present invention takes into account the influence of rebound on the impact force, and therefore adds the rebound coefficient when analyzing the impact force. Considering the impact shape factor of the impact force and the impact rebound effect at the same time, such a comprehensive analysis method is more reasonable and accurate. The existing method separates the impact rebound effect and the impact shape factor, and analyzes them separately, resulting in a large calculation error.

[0044] Combined with the results of the impact force test, the relevant parameters of the forging hammer's impact action were analyzed and obtained, as shown in the table below.

[0045]

[0046] Therefore, the peak striking force can be expressed as: ,make When this is the case, the above formula can be simplified to: is the mass of the hammer head; is the mass of the base group (including the mass of the equipment and the foundation); is the mass ratio, is the reciprocal of the mass ratio.

[0047] Through this embodiment, a variety of pulse functions are used to simulate the forging hammer striking action under different process conditions. This method can effectively capture the dynamic characteristics of the forging hammer during actual operation. Such simulation not only helps to analyze the changing trend of the striking force but also provides a reference for test design. In addition, the forging hammer striking force tests carried out in the past will provide important experimental data for verifying these models and theories.

[0048] Additionally, as Figure 2 shown, analyze the forging hammer striking process:

[0049] The first stage: Loading stage:

[0050] Initial state: The initial velocity of the hammer head is , and the initial velocity of the anvil is . At this time, the hammer head begins to fall and exerts a force on the anvil. During this stage, the force exerted by the hammer head on the anvil increases from zero. As the hammer head falls, the pressure between the contact surfaces gradually increases until it reaches the maximum value Fmax. The change in the force is usually a process of gradually rising to the peak and then quickly returning to zero at the end of the impact.

[0051] Forging forming: Due to the fall of the hammer head and the fixation of the anvil, the forging is compressed and undergoes plastic deformation during this stage. The deformation amount of the forging reaches the maximum in this stage. At this time, the velocities of the hammer head and the anvil gradually approach and finally reach the same sinking velocity .

[0052] Energy conversion: In this stage, the kinetic energy of the falling component is converted into the plastic deformation energy of the forging, the elastic deformation energy inside the hammering system, and the kinetic energy of the system's movement.

[0053] Time parameter: In the loading stage, the impact duration or impact pulse width t0 determines the action time of the first stage, that is, Δt1 = t0. At this time, when the force reaches zero, according to Newton's second law F = m⋅a, the acceleration is zero.

[0054] The second stage: Recovery stage:

[0055] Start state: At the end of the loading stage, the hammer head and the anvil move together at a velocity, that is, .

[0056] Elastic deformation energy release: As the hammer head separates from the anvil, the elastic deformation energy of the hammering system at the end of the first stage is released during the recovery stage. The hammer head and the anvil start to separate in the reverse direction, and their moving speeds reach and respectively.

[0057] Impact and vibration: The anvil acts on the foundation at a speed of , thus causing severe ground impact vibration, which has an impact on the surrounding environment and the stability of the equipment.

[0058] End state: At the end of the recovery stage, the speeds of the hammer head and the anvil reach and respectively, and the two start to move in the reverse direction.

[0059] According to the principle of conservation of momentum, the calculation method of the forging hammer impact force can be obtained. For the impact force of a forging hammer with an anvil it can be derived according to the change in momentum being equal to the product of the average impact force and the impact time: .

[0060] This is also the most commonly used calculation formula for the forging hammer impact force at present. It should be noted that the formula calculates the average impact force. Forging process design should not only meet the requirements of mechanical product production and processing, but also ensure the normal use of forging hammer equipment, meet the strength requirements of parts, and reduce the impact of vibration on the environment. If the calculation of the forging hammer impact force is inaccurate, the stable operation of the equipment and effective vibration control cannot be guaranteed. In the actual use process, many equipment have problems of early damage and have not been effectively solved for a long time. In engineering practice, technicians have gradually realized that there are deviations in the existing calculation methods, especially in the prediction of impact force. Test results show that the actually measured impact force is about 2 times larger than the value obtained by the existing calculation method, resulting in the load borne by the equipment being much higher than expected, which in turn leads to equipment failures and premature wear.

[0061] Therefore, we have adopted a variety of pulse functions to simulate the impact force characteristics of the forging hammer under different impact states, and combined with the actual working conditions for on-site test verification. This method can more accurately capture the dynamic changes of the forging hammer during the impact process, especially considering the irregularity and complexity of the forging hammer's force under different working conditions. In addition, we have fully considered multiple factors such as the rigidity, elasticity, and elastoplasticity of the impact object material, and proposed a new method for analyzing the forging hammer impact force. Through this method, we can not only accurately calculate the actual impact force of the forging hammer, but also effectively predict the transmission and control of equipment vibration, thus providing a reliable basis for optimizing the design of forging hammer equipment, improving its stability, and extending its service life.

[0062] In an optional embodiment, an impact force function is obtained, and the formula is: , is the impact force function, is the unit impulse function, is the peak value of the impact force.

[0063] In an alternative embodiment, five unit impulse functions are obtained, where the unit impulse function includes the following formulas for the post-peak tooth-shaped pulse: , the formula for the symmetric triangular pulse is , the formula for the versine pulse is: , the formula for the sine half-wave pulse is: , and the formula for the rectangular pulse is: .

[0064] Specifically, referring to Figure 3 , according to the process conditions of different forms, the pulse function has multiple forms, and the calculation formulas of five typical unit impulse functions are listed. Analyzing and simulating the impact force with multiple unit impulse functions can more accurately find the function that is more similar to the impact force curve, facilitating the analysis of the impact force and improving the accuracy of the impact force analysis.

[0065] In an alternative embodiment, the integral total formula for the average impact force is obtained based on the average impact force formula. When , the integral total formula for the average impact force is: , where is the first time corresponding to the first stage of the forging hammer strike, is the strike duration, is the average impact force, is the peak value of the impact force, is the unit impulse function.

[0066] Specifically, the average impact force formula is transformed into the integral total formula for the impact force to facilitate the substitution and calculation of the unit impulse function.

[0067] In an alternative embodiment, substituting the unit impulse function into the integral total formula for the average impact force gives the integral formula for the average impact force, including: the integral formula for the post-peak tooth-shaped pulse: , the integral formula for the symmetric triangular pulse: , the integral formula for the versine pulse: , the integral formula for the sine half-wave pulse: , the integral formula for the rectangular pulse: , .

[0068] Referring to Figures 4 - 7 , it is the relationship between the peak value and the mean value of the impact force corresponding to various unit impulse functions. According to the relationship between the peak value and the mean value of the impact force corresponding to the unit impulse function, the pulse peak factor can be obtained, and the pulse peak factor is an important factor for judging the impact force.

[0069] In an alternative embodiment, the relationship between the pulse peak value and the average impact force is obtained based on the unit impulse function, and the formula is , where is the peak impact force, is the pulse peak factor, is the average impact force, and one unit impulse function corresponds to one pulse peak factor.

[0070] In an alternative embodiment, the rebound coefficient is obtained, and the influence coefficient is obtained based on the rebound coefficient. The formula is , where is the influence coefficient, is the rebound coefficient.

[0071] Specifically, for the rebound coefficient e, the recommended values given in the "Design Manual for Dynamic Machine Foundations" are shown in the following table:

[0072]

[0073] In summary, the calculation method proposed by the present invention is closer to the actual situation and is consistent with the impact force test results. The calculation result is about twice as large as that of the existing method. The present invention proposes that when the forging hammer strikes different objects, the corresponding pulse form can be found, and the impact force of the forging hammer can be described by the pulse function. The existing method calculates according to the average impact force, and the result is too small and unreasonable. The present invention simultaneously considers the impact form factor of the impact force and the influence of collision rebound. Such a comprehensive analysis method is more reasonable and accurate. The existing method separates the impact rebound influence and the impact form factor and analyzes them separately, resulting in a large calculation error.

[0074] According to another aspect of the present application, a quantitative analysis device for the forging hammer impact action characteristics based on the pulse function is provided. The device includes: a first acquisition unit for acquiring the average impact force formula, and the formula is: , where is the average impact force, is the first time corresponding to the first stage of the forging hammer strike, is the impact force function; a second acquisition unit for obtaining the average impact force integral formula based on the unit impulse function and the average impact force formula, where the unit impulse function includes a post-peak tooth-shaped pulse, a symmetric triangular pulse, a versine pulse, a sine half-wave pulse, and a rectangular pulse, and one unit impulse function corresponds to one average impact force integral formula; a third acquisition unit for obtaining the peak impact force expression based on the pulse peak factor, the rebound coefficient, and the influence coefficient. The formula is , where is the peak impact force, is the influence coefficient, is the pulse peak factor, is the mass of the hammer head, is the striking speed of the hammer head, , is the mass ratio, is the reciprocal of the mass ratio, is the mass of the base group, and the mass of the base group includes the mass of the equipment and the foundation.

[0075] The embodiment of the present application also provides a quantitative analysis device for the forging hammer striking action characteristics based on a pulse function. It should be noted that a quantitative analysis device for the forging hammer striking action characteristics based on a pulse function in the embodiment of the present application can be used to execute the quantitative analysis method for the forging hammer striking action characteristics based on a pulse function provided by the embodiment of the present application. This device is used to implement the above-mentioned embodiments and preferred implementation manners, and those that have been described will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that can achieve a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and contemplated.

[0076] The following introduces a quantitative analysis device for the forging hammer striking action characteristics based on a pulse function provided by the embodiment of the present application.

[0077] Figure 8 is the structural block diagram of a quantitative analysis device for the forging hammer striking action characteristics based on a pulse function according to the embodiment of the present application. As Figure 8 shown, the device includes: a first acquisition unit 801, configured to acquire the average impact force formula, and the formula is: , where is the average impact force, is the first time corresponding to the first stage of the forging hammer strike, is the impact force function; a second acquisition unit 802, configured to acquire the average impact force integral formula according to the unit impulse function and the average impact force formula, where the unit impulse function includes a post-peak tooth-shaped pulse, a symmetric triangular pulse, a versine pulse, a sine half-wave pulse, and a rectangular pulse, and one unit impulse function corresponds to one average impact force integral formula; a third acquisition unit 803, configured to acquire the impact force peak expression according to the pulse peak factor, the rebound coefficient, and the influence coefficient, and the formula is , where is the impact force peak, is the influence coefficient, is the pulse peak factor, is the mass of the hammer head, is the striking speed of the hammer head, , is the mass ratio, is the reciprocal of the mass ratio, is the basis set quality, which includes equipment and foundation quality.

[0078] In an alternative embodiment, the first acquisition unit 801 includes: a first acquisition subunit for acquiring a striking force function, the formula of which is: , is the striking force function, is the unit impulse function, is the peak value of the striking force.

[0079] In an alternative embodiment, the second acquisition unit 802 includes: a second acquisition subunit for acquiring five unit impulse functions, where the unit impulse function includes a rear peak tooth-shaped pulse, the formula of which is: , a symmetric triangular pulse, the formula of which is , a versine pulse, the formula of which is: , a sine half-wave pulse, the formula of which is: , a rectangular pulse, the formula of which is: .

[0080] In an alternative embodiment, the second acquisition unit 802 includes: a second acquisition subunit for obtaining the total integral formula of the average striking force according to the average striking force formula. When , the total integral formula of the average striking force is: , where is the first time corresponding to the first stage of the forging hammer strike, is the strike duration, is the average striking force, is the peak value of the striking force, is the unit impulse function.

[0081] In an alternative embodiment, the second acquisition unit 802 includes: a calculation subunit for substituting the unit impulse function into the total integral formula of the average striking force to obtain the integral formula of the average striking force, including: the integral formula of the rear peak tooth-shaped pulse: , the integral formula of the symmetric triangular pulse: , the integral formula of the versine pulse: , the integral formula of the sine half-wave pulse: , the integral formula of the rectangular pulse: , .

[0082] In an alternative embodiment, the third acquisition unit 803 includes: a third acquisition subunit for obtaining the relationship between the pulse peak value and the average striking force according to the unit impulse function, the formula of which is , where is the peak value of the striking force, is the pulse peak factor, is the average impact force, and one unit impulse function corresponds to one impulse peak factor.

[0083] In an optional embodiment, the third acquisition unit 803 includes: a fourth acquisition subunit, configured to acquire a resilience coefficient and obtain an influence coefficient based on the resilience coefficient. The formula is , where is the influence coefficient, is the resilience coefficient.

[0084] The quantitative analysis device for the forging hammer impact action characteristics based on impulse function includes a processor and a memory. The above first acquisition unit 801, etc. are all stored in the memory as program units, and the corresponding functions are implemented by the processor executing the above program units stored in the memory. The above modules are all located in the same processor; or, the above modules are respectively located in different processors in any combination form.

[0085] The processor contains a kernel, and the kernel retrieves the corresponding program unit from the memory. One or more kernels can be set, and by adjusting the kernel parameters, the technical problem of large calculation error of the forging hammer impact force can be solved.

[0086] The memory may include non-permanent memory in a computer-readable medium, forms such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one storage chip.

[0087] An embodiment of the present invention provides a computer-readable storage medium, and the computer-readable storage medium includes a stored program. Wherein, when the program runs, it controls the device where the computer-readable storage medium is located to execute the quantitative analysis method for the forging hammer impact action characteristics based on impulse function.

[0088] Specifically, a quantitative analysis method for the forging hammer impact action characteristics based on impulse function includes: obtaining the formula for the average impact force, and the formula is: , where is the average impact force, is the first time corresponding to the first stage of the forging hammer impact, is the impact force function; according to the unit impulse function and the formula for the average impact force, obtain the integral formula for the average impact force. Among them, the unit impulse function includes a post-peak tooth-shaped pulse, a symmetric triangular pulse, a versine pulse, a sine half-wave pulse, and a rectangular pulse. One unit impulse function corresponds to one integral formula for the average impact force; according to the impulse peak factor, the resilience coefficient, and the influence coefficient, obtain the expression for the impact force peak, and the formula is , where is the impact force peak, is the influence coefficient, is the pulse peak factor, is the mass of the hammer head, is the striking speed of the hammer head, , is the mass ratio, is the reciprocal of the mass ratio, is the mass of the base group, and the mass of the base group includes the mass of the equipment and the foundation.

[0089] Optionally, obtain the impact force function, and the formula is: , is the impact force function, is the unit impulse function, is the peak impact force.

[0090] Optionally, obtain five unit impulse functions. Among them, the unit impulse function includes the formula for the post-peak tooth-shaped pulse: , the formula for the symmetric triangular pulse is , the formula for the versine pulse is: , the formula for the sine half-wave pulse is: , the formula for the rectangular pulse is: .

[0091] Optionally, obtain the integral total formula of the average impact force according to the average impact force formula. When , the integral total formula of the average impact force is: , where is the first time corresponding to the first stage of the forging hammer strike, is the strike duration, is the average impact force, is the peak impact force, is the unit impulse function.

[0092] Optionally, substitute the unit impulse function into the integral total formula of the average impact force to obtain the integral formula of the average impact force, including: the integral formula for the post-peak tooth-shaped pulse: , the integral formula for the symmetric triangular pulse: , the integral formula for the versine pulse: , the integral formula for the sine half-wave pulse: , the integral formula for the rectangular pulse: , .

[0093] Optionally, obtain the relationship between the pulse peak and the average impact force according to the unit impulse function. The formula is , where is the peak impact force, is the pulse peak factor, The average impact force, and one unit impulse function corresponds to one impulse peak factor.

[0094] Optionally, obtain the resilience coefficient, and obtain the influence coefficient according to the resilience coefficient. The formula is , where is the influence coefficient, is the resilience coefficient.

[0095] An embodiment of the present invention provides a processor for running a program. When the program runs, it executes the quantitative analysis method for the forging hammer impact characteristics based on the impulse function.

[0096] Specifically, a quantitative analysis method for the forging hammer impact characteristics based on the impulse function includes: obtaining the average impact force formula, and the formula is: , where is the average impact force, is the first time corresponding to the first stage of the forging hammer impact, is the impact force function; according to the unit impulse function and the average impact force formula, obtain the average impact force integral formula. The unit impulse function includes the post-peak tooth-shaped pulse, symmetric triangular pulse, versine pulse, sine half-wave pulse, and rectangular pulse. One unit impulse function corresponds to one average impact force integral formula; according to the impulse peak factor, resilience coefficient, and influence coefficient, obtain the impact force peak expression, and the formula is , where is the impact force peak, is the influence coefficient, is the impulse peak factor, is the hammer head mass, is the hammer head impact speed, , is the mass ratio, is the reciprocal of the mass ratio, is the base group mass, and the base group mass includes the equipment and foundation mass.

[0097] Optionally, obtain the impact force function, and the formula is: , is the impact force function, is the unit impulse function, is the impact force peak.

[0098] Optionally, obtain five unit impulse functions. The unit impulse function includes the post-peak tooth-shaped pulse, and the formula is: , the symmetric triangular pulse formula is , the versine pulse formula is: , the sine half-wave pulse formula is: , the rectangular pulse formula is: 。

[0099] Optionally, obtain the total integral formula of the average impact force according to the average impact force formula. When the total integral formula of the average impact force is: , where is the first time corresponding to the first stage of the forging hammer strike, is the strike duration, is the average impact force, is the peak impact force, is the unit impulse function.

[0100] Optionally, substitute the unit impulse function into the total integral formula of the average impact force to obtain the integral formula of the average impact force, including: the integral formula of the post-peak tooth-shaped pulse: , the integral formula of the symmetric triangular pulse: , the integral formula of the versine pulse: , the integral formula of the sine half-wave pulse: , the integral formula of the rectangular pulse: , .

[0101] Optionally, obtain the relationship between the pulse peak value and the average impact force according to the unit impulse function. The formula is , where is the peak impact force, is the pulse peak factor, is the average impact force, and one unit impulse function corresponds to one pulse peak factor.

[0102] Optionally, obtain the resilience coefficient, and obtain the influence coefficient according to the resilience coefficient. The formula is , where is the influence coefficient, is the resilience coefficient.

[0103] An embodiment of the present invention provides a device, which includes a processor, a memory, and a program stored on the memory and executable on the processor. When the processor executes the program, it implements at least the following steps: obtain the average impact force formula, and the formula is: , where is the average impact force, is the first time corresponding to the first stage of the forging hammer strike, is the impact force function; according to the unit impulse function and the average impact force formula, obtain the integral formula of the average impact force, where the unit impulse function includes the post-peak tooth-shaped pulse, the symmetric triangular pulse, the versine pulse, the sine half-wave pulse, and the rectangular pulse, and one unit impulse function corresponds to one integral formula of the average impact force; according to the pulse peak factor, the resilience coefficient, and the influence coefficient, obtain the peak impact force expression, and the formula is , where is the peak impact force, is the influence coefficient, is the pulse peak factor, is the mass of the hammer head, is the striking speed of the hammer head, , is the mass ratio, is the reciprocal of the mass ratio, is the mass of the base group, and the mass of the base group includes the mass of the equipment and the foundation. The equipment in this article can be a server, a PC, a PAD, a mobile phone, etc.

[0104] Optionally, obtain the impact force function, and the formula is: , is the impact force function, is the unit impulse function, is the peak impact force.

[0105] Optionally, obtain five unit impulse functions, where the unit impulse function includes the formula for the post-peak tooth-shaped pulse: , the formula for the symmetric triangular pulse is , the formula for the versine pulse is: , the formula for the sine half-wave pulse is: , the formula for the rectangular pulse is: .

[0106] Optionally, obtain the integral total formula of the average impact force according to the average impact force formula. When , the integral total formula of the average impact force is: , where is the first time corresponding to the first stage of the forging hammer strike, is the strike duration, is the average impact force, is the peak impact force, is the unit impulse function.

[0107] Optionally, substitute the unit impulse function into the integral total formula of the average impact force to obtain the integral formula of the average impact force, including: the integral formula for the post-peak tooth-shaped pulse: , the integral formula for the symmetric triangular pulse: , the integral formula for the versine pulse: , the integral formula for the sine half-wave pulse: , the integral formula for the rectangular pulse: , .

[0108] Optionally, obtain the relationship between the pulse peak and the average impact force according to the unit impulse function. The formula is , where is the peak impact force, is the pulse peak factor, is the average impact force, and one unit impulse function corresponds to one pulse peak factor.

[0109] Optionally, obtain the resilience coefficient, and obtain the influence coefficient according to the resilience coefficient. The formula is , where is the influence coefficient, is the resilience coefficient.

[0110] This application also provides a computer program product, which, when executed on a data processing device, is adapted to execute a program initialized with at least the following method steps: obtain the formula for the average impact force, and the formula is: , where is the average impact force, is the first time corresponding to the first stage of the forging hammer strike, is the impact force function; according to the unit impulse function and the formula for the average impact force, obtain the integral formula for the average impact force, where the unit impulse function includes a post-peak tooth-shaped pulse, a symmetric triangular pulse, a versine pulse, a sine half-wave pulse, and a rectangular pulse, and one unit impulse function corresponds to one integral formula for the average impact force; according to the pulse peak factor, the resilience coefficient, and the influence coefficient, obtain the expression for the peak impact force, and the formula is , where is the peak impact force, is the influence coefficient, is the pulse peak factor, is the mass of the hammer head, is the striking speed of the hammer head, , is the mass ratio, is the reciprocal of the mass ratio, is the mass of the base group, and the mass of the base group includes the mass of the equipment and the foundation.

[0111] Optionally, obtain the impact force function, and the formula is: , is the impact force function, is the unit impulse function, is the peak impact force.

[0112] Optionally, obtain five unit impulse functions, where the unit impulse function includes a post-peak tooth-shaped pulse, and the formula is: , a symmetric triangular pulse, and the formula is , a versine pulse, and the formula is: , a sine half-wave pulse, and the formula is: , a rectangular pulse, and the formula is: .

[0113] Optionally, obtain the total integral formula of the average impact force according to the average impact force formula. When the total integral formula of the average impact force is: , where is the first time corresponding to the first stage of the forging hammer strike, is the strike duration, is the average impact force, is the peak impact force, is the unit impulse function.

[0114] Optionally, substitute the unit impulse function into the total integral formula of the average impact force to obtain the integral formula of the average impact force, including: the integral formula of the post-peak tooth-shaped pulse: , the integral formula of the symmetric triangular pulse: , the integral formula of the versine pulse: , the integral formula of the sine half-wave pulse: , the integral formula of the rectangular pulse: , .

[0115] Optionally, obtain the relationship between the pulse peak and the average impact force according to the unit impulse function. The formula is , where is the peak impact force, is the pulse peak factor, is the average impact force, and one unit impulse function corresponds to one pulse peak factor.

[0116] Optionally, obtain the resilience coefficient, and obtain the influence coefficient according to the resilience coefficient. The formula is , where is the influence coefficient, is the resilience coefficient.

[0117] Obviously, those skilled in the art should understand that the above-mentioned modules or steps of the present invention can be implemented by a general-purpose computing device. They can be concentrated on a single computing device or distributed on a network composed of multiple computing devices. They can be implemented by program codes executable by the computing device. Thus, they can be stored in a storage device and executed by the computing device. And in some cases, the steps shown or described can be executed in a different order than here, or they can be separately made into individual integrated circuit modules, or multiple modules or steps among them can be made into a single integrated circuit module to implement. In this way, the present invention is not limited to any specific combination of hardware and software.

[0118] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of an all-hardware embodiment, an all-software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0119] The present application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of the flows and / or blocks in the flowchart and / or block diagram can also be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in Figure 1 one or more of the flows Figure 1 or blocks.

[0120] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device that implements the functions specified in Figure 1 one or more of the flows Figure 1 or blocks.

[0121] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in Figure 1 one or more of the flows Figure 1 or blocks.

[0122] In a typical configuration, a computing device includes one or more processors (CPUs), an input / output interface, a network interface, and a memory.

[0123] The memory may include non-permanent memory in the computer-readable medium, in the form of random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0124] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0125] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0126] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A quantitative analysis method for the forging hammer impact characteristics based on impulse function, characterized in that Including: Obtain the formula for the average impact force, and the formula is: , where is the average impact force, is the first time corresponding to the first stage of the forging hammer strike, is the impact force function; According to the unit impulse function and the average impact force formula, obtain the integral formula for the average impact force, where the unit impulse function includes a post-peak tooth-shaped pulse, a symmetric triangular pulse, a versine pulse, a sine half-wave pulse, and a rectangular pulse, and one unit impulse function corresponds to one integral formula for the average impact force; Obtain the peak impact force expression based on the pulse peak factor, rebound coefficient, and influence coefficient. The formula is , where is the peak impact force, is the influence coefficient, is the pulse peak factor, is the mass of the hammer head, is the impact velocity of the hammer head, , is the mass ratio, is the reciprocal of the mass ratio, is the mass of the base group, and the mass of the base group includes the mass of the equipment and the foundation.

2. The method according to claim 1, wherein Obtaining the average impact force formula includes: Obtain the impact force function, with the formula: , is the impact force function, is the unit impulse function, is the peak impact force.

3. The method according to claim 1, characterized in that, According to the unit impulse function and the average impact force formula, obtaining the integral formula for the average impact force includes: Obtain five unit impulse functions, where the unit impulse functions include a rear peak tooth-shaped pulse formula as follows: , a symmetric triangular pulse formula is , a versine pulse formula is: , a sine half-wave pulse formula is: , a rectangular pulse formula is: .

4. The method according to claim 3, wherein According to the unit impulse function and the average impact force formula, obtaining the integral formula for the average impact force includes: Obtain the integral total formula of the average impact force according to the average impact force formula. When The integral total formula of the average impact force is as follows: , where is the first time corresponding to the first stage of the forging hammer strike, is the strike duration, is the average impact force, is the peak impact force, is the unit impulse function.

5. The method according to claim 4, characterized in that, According to the unit impulse function and the average impact force formula, obtaining the integral formula for the average impact force includes: Substituting the unit impulse function into the integral formula for the average impact force, the integral formula for the average impact force is obtained, including: the integral formula for the post-peak tooth-shaped pulse: , the integral formula for the symmetric triangular pulse: , the integral formula for the versine pulse: , the integral formula for the sine half-wave pulse: , the integral formula for the rectangular pulse: , .

6. The method according to claim 1, wherein Before obtaining the impact force peak expression based on the pulse peak factor, the rebound coefficient, and the influence coefficient, it includes: Obtain the relationship between the pulse peak value and the average impact force according to the unit impulse function. The formula is , where is the peak impact force, is the pulse peak factor, is the average impact force. One unit impulse function corresponds to one pulse peak factor.

7. The method according to claim 1, wherein Obtaining the impact force peak expression based on the pulse peak factor, the rebound coefficient, and the influence coefficient includes: Obtain the rebound coefficient, and obtain the influence coefficient based on the rebound coefficient. The formula is , where is the influence coefficient, is the rebound coefficient.

8. A quantitative analysis device for the forging hammer strike action characteristics based on impulse functions, characterized in that, Including: The first acquisition unit is configured to acquire an average impact force formula, and the formula is: , where is the average impact force, is the first time corresponding to the first stage of the forging hammer strike, is the impact force function; A second obtaining unit, configured to obtain the integral formula for the average impact force according to the unit impulse function and the average impact force formula, where the unit impulse function includes a post-peak tooth-shaped pulse, a symmetric triangular pulse, a versine pulse, a sine half-wave pulse, and a rectangular pulse, and one unit impulse function corresponds to one integral formula for the average impact force; A third acquisition unit, configured to obtain an expression for the peak impact force based on a pulse peak factor, a rebound coefficient, and an influence coefficient. The formula is , where is the peak impact force, is the influence coefficient, is the pulse peak factor, is the mass of the hammer head, is the striking speed of the hammer head, , is the mass ratio, is the reciprocal of the mass ratio, is the mass of the base group, and the mass of the base group includes the mass of the equipment and the foundation.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, where when the program runs, it controls the device where the computer-readable storage medium is located to execute a quantitative analysis method for the forging hammer impact action characteristics based on the impulse function according to any one of claims 1 to 7.

10. An electronic device, characterized in that, Including: One or more processors, a memory, and one or more programs, where the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a quantitative analysis method for the forging hammer impact action characteristics based on the impulse function according to any one of claims 1 to 7.

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