An analysis method for the impact force of an impact machine using an impulse function

Abstract

The application discloses an analysis method for impact force of an impact machine represented by a pulse function, and comprises the following steps: acquiring reference datum according to test data, wherein the reference datum comprises i preset times and i preset impact forces corresponding to the i preset times; acquiring five test pulse functions according to the reference datum and five pulse functions, acquiring a reference pulse peak value, and acquiring a reference pulse width; calculating residuals of the reference datum and the five test pulse functions to obtain five residual data, wherein a test pulse function corresponding to a minimum value in the five residual data is an optimal pulse function; and calculating an optimal impact energy and an optimal pulse width of the optimal pulse function. The technical problem that the power effect of the impact machine cannot be comprehensively reflected in the prior art is solved, and the technical effect that the power effect of the impact machine is comprehensively reflected is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of engineering vibration technology, and in particular to an analysis method for impact force of an impact machine represented by a pulse function. BACKGROUND

[0002] With the progress of industrial technology, forging equipment is also developing towards heavy-duty and large-scale. According to the needs of industrial development, forging equipment is widely used in many industries, such as automobile, petrochemical, shipbuilding, aviation, aerospace, transportation and other industries, with a total output value of hundreds of billions of yuan. There are many types of forging equipment, the most important of which are forging hammers and presses. These include air hammers, free ends, hot die forging, mechanical presses, hydraulic presses and screws.

[0003] Forging hammers and presses are impact machines. When the equipment is working, very strong impact vibration will be generated. Such impact machines have the characteristics of large instantaneous force, short duration, wide frequency distribution, and complex impact waveform. Vibration not only affects the quiet and comfortable environment of office, residential and teaching areas, and if not handled properly, it can become a serious social nuisance. In addition, the propagation of vibration will also affect the machining accuracy of precision equipment and the normal use of precision instruments; strong vibration can even endanger the occupational health of operating posts and the safety and durability of building structures.

[0004] At present, there is no solution to how to provide effective, reliable and accurate basis for vibration hazards in the process of forging equipment in industrial manufacturing. SUMMARY

[0005] The purpose of the present application is to provide an analysis method for impact force of an impact machine represented by a pulse function, to solve the technical problem that the power effect of the impact machine cannot be fully reflected in the related art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, an analysis method for impact force of an impact machine represented by a pulse function is provided. The present application comprises: obtaining reference datum from test data, the reference datum comprising i preset times and i preset impact forces corresponding to the i preset times; obtaining five test pulse functions from the reference datum and five pulse functions, obtaining a reference pulse peak value, and obtaining a reference pulse width, wherein the reference pulse peak value is the maximum value of the impact force in the reference datum, the reference pulse width is the pulse width of the reference datum, and the five pulse functions include rectangular pulse, sine half wave, normal pulse, symmetrical triangle, and back peak tooth shape; calculating the residual of the reference datum and the five test pulse functions to obtain five residual data, and the test pulse function corresponding to the minimum value in the five residual data is the best pulse function; and calculating the best impact energy and the best pulse width of the best pulse function.

[0007] Furthermore, based on the reference benchmark data and five pulse functions, five test pulse functions are obtained, the reference pulse peak value is obtained, and the reference pulse width is obtained, including: determining the first time and the second time based on the reference benchmark data, the first time corresponding to the first impact force, the second time corresponding to the second impact force, the first impact force being equal to the second impact force, and the reference pulse width being the difference between the first time and the second time, wherein the first time is less than the second time.

[0008] Furthermore, based on the reference data and five pulse functions, five test pulse functions are obtained, the reference pulse peak value is obtained, and the reference pulse width is obtained, including obtaining the reference impact energy based on the reference pulse width.

[0009] Furthermore, the reference impact energy is obtained based on the reference pulse width, including: according to the formula Obtain the baseline impact energy, where E ta The reference impact energy is Δt, which is equal to the reference pulse width. ia1 represents the first time step, ia2 represents the second time step, and F... i Let i be the preset impact forces corresponding to i preset time periods.

[0010] Furthermore, based on the reference data and five pulse functions, five test pulse functions are obtained, the reference pulse peak value is obtained, and the reference pulse width is obtained, including: substituting the reference pulse peak value and the reference pulse width into the five pulse functions to obtain the five test pulse functions; the rectangular pulse is... A half-sine wave is The sine pulse is Symmetrical triangles are The rear peak tooth shape is Among them, F max The value of t0 is equal to the value of the reference pulse peak, and t0 is the reference pulse width.

[0011] Further, the residuals between the reference benchmark data and the five test impulse functions are obtained, and the test impulse function corresponding to the minimum value of the residual is determined as the optimal impulse function, including: Step S601: According to the formula Calculate the residual, δ j For any type of residual, i a Let ib be a first time set consisting of multiple first times, and let F be a second time set consisting of multiple second times. ji Let y be any test impulse function. i For reference data; Step S602: Replace F in step S601 ji For the remaining test impulse functions, repeat step S601 five times to obtain five residual data. Compare the five residual data, and the test impulse function corresponding to the residual data with the smallest residual data is the optimal impulse function.

[0012] Further, the best impact energy and the best pulse width of the best pulse function are calculated, including: according to the formula The best impact energy of the rectangular pulse is The best pulse width of the rectangular pulse is The best impact energy of the sine half wave is The best pulse width of the sine half wave is The best impact energy of the versed pulse is The best pulse width of the versed pulse is The best impact energy of the symmetrical triangle is The best pulse width of the symmetrical triangle is The best impact energy of the back peak tooth shape is The best pulse width of the back peak tooth shape is The best impact energy and the best pulse width of the best pulse function are calculated, wherein F max The reference pulse peak value is equal to the reference pulse peak value, t0 is the reference pulse width, and Δt is equal to the value of the reference pulse width.

[0013] In order to achieve the above-mentioned purpose, according to another aspect of the present application, an analysis device for impact machine hitting force represented by pulse function is provided. The device comprises: a first acquisition unit for acquiring reference data, the reference data comprising i preset times and i preset impact forces corresponding to the i preset times; a second acquisition unit for acquiring five test pulse functions according to the reference data and the five pulse functions, acquiring a reference pulse peak value, and acquiring a reference pulse width, wherein the reference pulse peak value is the maximum value of the impact force in the reference data, the reference pulse width is the pulse width of the reference data, and the five pulse functions include rectangular pulse, sine half wave, versed pulse, symmetrical triangle, and back peak tooth shape; a first calculation unit for calculating the residual error of the reference data and the five test pulse functions, obtaining five residual data, and the test pulse function corresponding to the minimum value in the five residual data being the best pulse function; and a second calculation unit for calculating the best impact energy and the best pulse width of the best pulse function.

[0014] Compared with the prior art, the present application has the beneficial technical effects that:

[0015] 1. The dynamic effect of the impact machine is comprehensively reflected;

[0016] 2. The accuracy of the impact function calculation is effectively ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort based on these drawings.

[0018] Figure 1 is a flow chart of an analysis method for impact machine hitting force represented by pulse function according to an embodiment of the present application;

[0019] Figure 2 is a schematic diagram of a vibration model;

[0020] Figure 3 is a schematic diagram of time domain of five pulse functions;

[0021] Figure 4 is a schematic diagram of frequency domain of five pulse functions;

[0022] Figure 5 is a schematic diagram of an analysis device for impact machine hitting force represented by pulse function according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort fall within the scope of protection of the present application.

[0024] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] Reference Figure 1 This is a flowchart illustrating an analysis method for representing the impact force of an impact machine using an impulse function, according to an embodiment of the present invention. Figure 1 As shown, the invention includes the following steps: obtaining reference data based on test data, the reference data including i preset times and i preset impact forces corresponding to the i preset times; obtaining five test pulse functions based on the reference data and five pulse functions, obtaining the reference pulse peak value, and obtaining the reference pulse width, wherein the reference pulse peak value is the maximum value of the impact force in the reference data, the reference pulse width is the pulse width of the reference data, and the five pulse functions include rectangular pulse, sine half-wave, sine pulse, symmetrical triangular, and back-peak tooth shape; calculating the residual between the reference data and the five test pulse functions to obtain five residual data, the test pulse function corresponding to the minimum value among the five residual data is the optimal pulse function; calculating the optimal impact energy and optimal pulse width of the optimal pulse function.

[0027] The above-mentioned places, such as Figure 2 As shown, Figure 2 This is a schematic diagram of a vibration model. Generally, vibration control in engineering has three basic elements: vibration load—the condition of external excitation—input: F(t); the vibrating entity—the system of dynamic structures—system: mass m, stiffness k, damping c; and the allowable criterion—the objective of vibration control—response: Z(t). From the vibration model, its motion differential equation can be obtained:

[0028] mz″(t)+cz′(t)+kz(t)=F(t)

[0029] When the excitation force F(t) is an impulse function of the impact, the above equation becomes the differential equation for impact vibration. Therefore, the impulse function becomes crucial in determining the fundamental parameters (m, c, k) of the motion differential equation. Based on extensive collection of design data, combined with forging hammer impact force testing and numerical simulation analysis, this paper proposes using multiple impulse functions to describe different types of forging equipment in the time domain. It also establishes an impulse function model to identify the impact action as belonging to a specific type based on test data or design data, and determines the parameters of the impulse function. For example... Figure 3 As shown, Figure 3 Time-domain graphs of five impulse functions, such as Figure 4As shown, Figure 4 The five pulse functions are shown in the frequency domain. Figure 3 , 4 It can be seen that the pulse function contains three basic parameters: (1) the type of pulse function; (2) the pulse peak (F max ); (3) the pulse duration, i.e. the pulse width (t0).

[0030] According to the above, the reference data includes: (1) the impact data obtained by the test; (2) the relevant design data provided by the equipment manufacturer, which is the impact data of the design input. For the impact of the forging equipment, there are only two pulse functions in the original national standard, rectangular pulse and triangular pulse. Research shows that the rectangular pulse is too conservative, the triangular pulse is unsafe, and the dynamic effect of the impact machine cannot be fully reflected. Therefore, five pulse functions are used to describe the impact of different types of forging equipment in the time domain at different working stages. On the basis of the original rectangular pulse and triangular pulse, sine half-wave, normal pulse and post-peak tooth-shaped pulse are added. Thus, the calculation of the impact load is more accurate and effective.

[0031] In an alternative embodiment, five test pulse functions are obtained according to the reference data and the five pulse functions, the reference pulse peak is obtained, and the reference pulse width is obtained, including: determining a first time and a second time according to the reference data, the first time corresponding to a first impact force, the second time corresponding to a second impact force, the first impact force being equal to the second impact force, and the reference pulse width being the difference between the first time and the second time, wherein the first time is less than the second time.

[0032] According to the above, the reference data is (t i ,F i ), (i=1, 2, …, 250), F max =max(F i ), max(F i ) is the maximum value of F i , and the corresponding abscissa t imax is found. F a1 , F a2 =a%*F max , the corresponding abscissas are xt ia1 and t ia2 , and t ia1 <t ia2 . We can let a=0.01-10. And the pulse width t0=t ia2 -t ia1 ; let the time interval be Δt. Calculate the symmetric pulse, find the maximum value point or the median point, and then find the a% quantile point on both sides. The median value formula is t m =∑(t i Fi ) / ∑F i Obtaining the peak value of the reference pulse, as well as the first and second time points, allows for better matching of the pulse function with the reference data, resulting in a more accurate and complete selection of the function.

[0033] In one optional embodiment, five test pulse functions are obtained based on reference data and five pulse functions, a reference pulse peak value is obtained, and a reference pulse width is obtained, including: obtaining a reference impact energy based on the reference pulse width.

[0034] In one optional embodiment, obtaining the reference impact energy based on the reference pulse width includes: according to the formula Obtain the baseline impact energy, where E ta The reference impact energy is given, Δt is equal to the reference pulse width, ia1 is the first time, iA2 is the second time, and F... i Let i be the preset impact forces corresponding to i preset time periods.

[0035] The above-mentioned location is used to obtain the reference impact energy, referring to the reference data in (t) ia1 , t ia2 The area of ​​the interval is the impact energy. Matching the impact energy of the pulse function facilitates the calculation of the impact energy of the optimal pulse function for subsequent matching, thus providing a more complete representation of the impact force.

[0036] In one optional embodiment, five test pulse functions are obtained based on reference data and five pulse functions, a reference pulse peak value is obtained, and a reference pulse width is obtained, including: substituting the reference pulse peak value and the reference pulse width into the five pulse functions to obtain the five test pulse functions; the rectangular pulse is... A half-sine wave is The sine pulse is The symmetrical triangle is F(t) = The rear peak tooth shape is Among them, F max The value of t0 is equal to the value of the reference pulse peak, and t0 is the reference pulse width.

[0037] The above-mentioned pulse function calculation yields the test pulse function, making the pulse function and reference data more closely match and facilitating analysis. For the impact effect of forging equipment, the original national standard only included two pulse functions: rectangular pulse and triangular pulse. Research shows that the rectangular pulse is too conservative, and the triangular pulse is too unsafe, failing to fully reflect the dynamic effects of impact machines. Therefore, five pulse functions are proposed to describe the impact effect of different types of forging equipment at different working stages in the time domain. Based on the original rectangular and triangular pulses, sinusoidal half-wave, versine pulse, and back-peak toothed pulse are added, ensuring more accurate and effective calculation of impact loads.

[0038] In an alternative embodiment, the residual of the reference datum and the five test pulse functions is obtained, and the test pulse function corresponding to the minimum of the residual is determined as the optimal pulse function, comprising: step S601: calculating the residual δ according to the formula j for any one residual i a is a first time set composed of a plurality of first times, ib is a second time set composed of a plurality of second times, F ji is any one test pulse function, y i is the reference datum; step S602: replacing F ji in step S601 with the remaining test pulse functions, and repeating step S601 five times to obtain five residual data, and comparing the five residual data, the test pulse function corresponding to the residual data with the minimum residual data is the optimal pulse function.

[0039] In the above, the test pulse function is calculated, and the square sum of the residual of the test pulse function and the reference datum impact data is minimized to match the pulse function, and the pulse function with the minimum residual is the optimal matching function, satisfying δ = min (∑δ j ). The calculation of the residual more accurately represents the matching of the optimal pulse function and the reference datum, and the smaller the residual, the closer the optimal pulse function and the reference datum, and the determination of the optimal pulse function through the residual improves the accuracy of the impact force analysis.

[0040] In an alternative embodiment, the optimal impact energy and the optimal pulse width of the optimal pulse function are calculated, comprising: obtaining the optimal impact energy of the rectangular pulse according to the formula F1 = F maxt0 , and the optimal pulse width of the rectangular pulse is The optimal impact energy of the sine half-wave is The optimal pulse width of the sine half-wave is The optimal impact energy of the versine pulse is The optimal pulse width of the versine pulse is The optimal impact energy of the symmetrical triangle is The optimal pulse width of the symmetrical triangle is The optimal impact energy of the back peak tooth shape is F(t) = The optimal pulse width of the back peak tooth shape is The optimal impact energy of the optimal pulse function is calculated, and the optimal pulse width of the optimal pulse function is calculated, wherein F max is equal to the reference pulse peak value, t0 is the reference pulse width, and Δt is equal to the value of the reference pulse width.

[0041] ​​Therefore, the derivation formula of each pulse function is as follows:

[0042] (1) Rectangular pulse:

[0043] The impact energy of the rectangular pulse is

[0044] E f1 = F max t0

[0045] According to the principle of equal energy, there is

[0046] F max t 01 = F ta

[0047] Therefore,

[0048]

[0049] (2) Sine half wave:

[0050]

[0051]

[0052]

[0053] (3) Secant pulse:

[0054]

[0055]

[0056]

[0057]

[0058] (4) Symmetrical triangle:

[0059]

[0060]

[0061]

[0062]

[0063]

[0064]

[0065]

[0066] (5) Rear peak tooth shape:

[0067]

[0068]

[0069]

[0070]

[0071] The pulse formula and impact energy formula of the five pulse functions are calculated according to the reference data calculated above, and when matched to the suitable pulse function, the pulse width and impact energy of the experimental impact force can be calculated using the above formula. With complete and accurate impact pulse function, the precise analysis of the vibration isolation design of the impact machine foundation can be realized. The general solution of the transient response of the damping system is obtained from the vibration theory: In the formula, F max is the maximum impact force; k z is the stiffness of the vibration system; η max is the impact vibration dynamic coefficient. The impact vibration dynamic coefficient η max can be obtained by looking up the table according to the pulse duration t0, the characteristic period T of the vibration system and the damping ratio ζ.

[0072] For the transient analysis of the damping system of the impact machine, five pulse functions such as rectangular pulse, back peak tooth shape, symmetric triangle, sine half wave and normal pulse are used to describe the vibration load of different types of impact equipment under different working conditions, and the precise control of impact vibration is realized. Such revision enriches the description of the impact of the machine during impact, which is beneficial to the impact isolation design and the vibration control of the impact machine. However, such revision does not establish the analysis and identification method of the technical parameters of the pulse function, and only according to the engineering experience to identify. Therefore, it is difficult to fully play the use effect of these pulse functions, and the analysis accuracy cannot be fully achieved.

[0073] The present application establishes a method for identifying the key parameters of the pulse function according to the test data or design data by using the fitting optimization method. The method is more scientific and accurate for analyzing the impact of the machine during impact, and provides a more effective technical means for the vibration control of the impact machine foundation.

[0074] The embodiment of the present application provides an analysis method for representing the striking force of an impact machine by using a pulse function, reference datum is obtained according to test data, the reference datum comprises i preset times and i preset impact forces corresponding to the i preset times; five test pulse functions are obtained according to the reference datum and five pulse functions, reference pulse peak value is obtained, reference pulse width is obtained, the reference pulse peak value is the maximum value of the impact force in the reference datum, the reference pulse width is the pulse width of the reference datum, the five pulse functions comprise a rectangular pulse, a sine half wave, a versine pulse, a symmetrical triangle and a back peak tooth shape; residual errors of the reference datum and the five test pulse functions are calculated to obtain five residual error data, the test pulse function corresponding to the minimum value in the five residual error data is the optimal pulse function; and the optimal impact energy and the optimal pulse width of the optimal pulse function are calculated. The technical problem that the power effect of the impact machine cannot be comprehensively reflected in the related art is solved. The technical effect that the power effect of the impact machine is comprehensively reflected is achieved.

[0075] 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 a logical order is shown in the flowchart, in some cases, the steps shown or described herein can be executed in an order different from that shown herein.

[0076] The embodiment of the present application further provides an analysis device for representing the striking force of an impact machine by using a pulse function, and it should be noted that the analysis device for representing the striking force of an impact machine by using a pulse function can be used to execute the analysis method for representing the striking force of an impact machine by using a pulse function.

[0077] Figure 5 FIG. 1 is a schematic diagram of an analysis device for representing the striking force of an impact machine by using a pulse function according to the embodiment of the present application. Figure 5As shown, the device comprises: a first acquisition unit 501, configured to acquire reference datum, the reference datum comprising i preset times and i preset impact forces corresponding to the i preset times; a second acquisition unit 502, configured to acquire five test pulse functions according to the reference datum and the five pulse functions, acquire a reference pulse peak value, and acquire a reference pulse width, wherein the reference pulse peak value is the maximum value of the impact force in the reference datum, the reference pulse width is the pulse width of the reference datum, and the five pulse functions comprise a rectangular pulse, a sine half wave, a secant pulse, a symmetrical triangle, and a back peak tooth shape; a first calculation unit 503, configured to calculate residuals of the reference datum and the five test pulse functions, to obtain five residual data, and to determine a test pulse function corresponding to the minimum value in the five residual data as an optimal pulse function; and a second calculation unit 504, configured to calculate an optimal impact energy and an optimal pulse width of the optimal pulse function.

[0078] In an optional embodiment, the second acquisition unit 502 comprises a determination subunit, configured to determine a first time and a second time according to the reference datum, the first time corresponding to a first impact force, the second time corresponding to a second impact force, the first impact force being equal to the second impact force, and the reference pulse width being the difference between the first time and the second time, wherein the first time is less than the second time.

[0079] In an optional embodiment, the second acquisition unit 502 comprises a first acquisition subunit, configured to acquire a reference impact energy according to the reference pulse width.

[0080] In an optional embodiment, the acquisition subunit comprises an acquisition module, configured to acquire the reference impact energy according to a formula wherein E ta is the reference impact energy, Δt is equal to the value of the reference pulse width, ia1 is the first time, ia2 is the second time, and F i is the i preset impact force corresponding to the i preset time.

[0081] In an optional embodiment, the second acquisition unit 502 comprises a second acquisition subunit, configured to substitute the reference pulse peak value and the reference pulse width into the five pulse functions to acquire the five test pulse functions, wherein the rectangular pulse is the sine half wave is the secant pulse is the symmetrical triangle is and the back peak tooth shape is wherein the value of F max is equal to the value of the reference pulse peak value, and t0 is the reference pulse width.

[0082] In an optional embodiment, the second acquisition unit 502 comprises a first calculation subunit, configured to perform step S601: acquiring the reference impact energy according to a formula Calculate the residual error, δ j For any one residual error, i a The first time set is composed of a plurality of first times, ib is the second time set composed of a plurality of second times, F ji For any one test pulse function, y i The reference datum; the second calculation sub-unit is used for step S602: replacing F ji The rest of the test pulse function, and repeat step S601 five times to obtain five residual error data, compare the five residual error data, and the test pulse function corresponding to the residual error data with the smallest residual error data is the best pulse function.

[0083] In an alternative embodiment, the second calculation unit 504 comprises: a third calculation sub-unit for calculating the residual error δ according to the formula The best impact energy of the rectangular pulse is E F1 =F max The best pulse width of the rectangular pulse is t0 The best impact energy of the sine half-wave is E The best pulse width of the sine half-wave is t0 The best impact energy of the versed sine pulse is E The best pulse width of the versed sine pulse is t0 The best impact energy of the symmetrical triangle is E The best pulse width of the symmetrical triangle is t0 The best impact energy of the back peak tooth shape is E The best pulse width of the back peak tooth shape is t0 Calculate the best impact energy and the best pulse width of the best pulse function, wherein F max The reference pulse peak value, t0 is the reference pulse width, and Δt is equal to the value of the reference pulse width.

[0084] The analysis device for representing the striking force of the impact machine by the pulse function provided by the embodiment of the present application comprises a first acquisition unit 501, which is used for acquiring reference datum, and the reference datum comprises i preset times and i preset impact forces corresponding to the i preset times; a second acquisition unit 502, which is used for acquiring five test pulse functions according to the reference datum and the five pulse functions, acquiring a reference pulse peak value, and acquiring a reference pulse width, wherein the reference pulse peak value is the maximum value of the impact force in the reference datum, the reference pulse width is the pulse width of the reference datum, and the five pulse functions comprise a rectangular pulse, a sine half wave, a versine pulse, a symmetrical triangle, and a back peak tooth shape; a first calculation unit 503, which is used for calculating the residual error of the reference datum and the five test pulse functions, obtaining five residual data, and determining the test pulse function corresponding to the minimum value in the five residual data as the optimal pulse function; and a second calculation unit 504, which is used for calculating the optimal impact energy and the optimal pulse width of the optimal pulse function. The technical problem that the power effect of the impact machine cannot be comprehensively reflected in the related art is solved. The technical effect that the power effect of the impact machine is comprehensively reflected is achieved.

[0085] The analysis device for representing the striking force of the impact machine by the pulse function comprises a processor and a memory, and the first acquisition unit 501 and the like are stored in the memory as program units, and the corresponding functions are realized by the processor executing the program units stored in the memory.

[0086] The processor comprises a core, and the core is used for calling the corresponding program units in the memory. One or more than one core can be arranged, and the core parameters are adjusted to solve the technical problem that the power effect of the impact machine cannot be comprehensively reflected in the related art.

[0087] The memory can comprise a non-permanent memory in a computer readable medium, a random access memory (RAM), and / or a non-volatile memory such as a read-only memory (ROM) or a flash memory (flash RAM), and the memory comprises at least one memory chip.

[0088] The embodiment of the present application provides a storage medium, and the storage medium stores a program, and the program is executed by the processor to realize an analysis method for representing the striking force of the impact machine by the pulse function.

[0089] The embodiment of the present application provides a processor, and the processor is used for running a program, and the program is executed to realize an analysis method for representing the striking force of the impact machine by the pulse function.

[0090] This invention provides a device including a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, it performs the following steps: obtaining reference data based on test data, the reference data including i preset times and i preset impact forces corresponding to the i preset times; obtaining five test pulse functions based on the reference data and five pulse functions, obtaining the reference pulse peak value, and obtaining the reference pulse width, wherein the reference pulse peak value is the maximum value of the impact force in the reference data, and the reference pulse width is the pulse width of the reference data; the five pulse functions include rectangular pulse, sine half-wave, sine pulse, symmetrical triangular pulse, and back-peak toothed pulse; calculating the residual between the reference data and the five test pulse functions to obtain five residual data, the test pulse function corresponding to the minimum value among the five residual data is the optimal pulse function; and calculating the optimal impact energy and optimal pulse width of the optimal pulse function.

[0091] Furthermore, based on the reference benchmark data and five pulse functions, five test pulse functions are obtained, the reference pulse peak value is obtained, and the reference pulse width is obtained, including: determining the first time and the second time based on the reference benchmark data, the first time corresponding to the first impact force, the second time corresponding to the second impact force, the first impact force being equal to the second impact force, and the reference pulse width being the difference between the first time and the second time, wherein the first time is less than the second time.

[0092] Furthermore, based on the reference data and five pulse functions, five test pulse functions are obtained, the reference pulse peak value is obtained, and the reference pulse width is obtained, including obtaining the reference impact energy based on the reference pulse width.

[0093] Furthermore, the reference impact energy is obtained based on the reference pulse width, including: according to the formula Obtain the baseline impact energy, where E ta The reference impact energy is Δt, which is equal to the reference pulse width. ia1 represents the first time interval, ia2 represents the second time interval, and F... i Let i be the preset impact forces corresponding to i preset time periods.

[0094] Furthermore, based on the reference data and five pulse functions, five test pulse functions are obtained, the reference pulse peak value is obtained, and the reference pulse width is obtained, including: substituting the reference pulse peak value and the reference pulse width into the five pulse functions to obtain the five test pulse functions; the rectangular pulse is... A half-sine wave is The sine pulse is Symmetrical triangles are The rear peak tooth shape is Among them, F max The value of t0 is equal to the value of the reference pulse peak, and t0 is the reference pulse width.

[0095] Further, the reference datum and the residual of the five test pulse functions are obtained, and the test pulse function corresponding to the minimum residual is determined as the optimal pulse function, comprising: step S601: according to the formula Calculate the residual, δ j For any residual, i a The first time set is composed of a plurality of first times, ib is the second time set composed of a plurality of second times, F ji For any test pulse function, y i The reference datum is obtained; step S602: replace F ji The rest of the test pulse function, and repeat step S601 five times to obtain five residual data, compare the five residual data, and the test pulse function corresponding to the residual data with the minimum residual data is the optimal pulse function.

[0096] Further, the optimal impact energy and the optimal pulse width of the optimal pulse function are calculated, comprising: according to the formula The optimal impact energy of the rectangular pulse is The optimal pulse width of the rectangular pulse is The optimal impact energy of the sine half wave is The optimal pulse width of the sine half wave is The optimal impact energy of the versine pulse is The optimal pulse width of the versine pulse is The optimal impact energy of the symmetric triangle is The optimal pulse width of the symmetric triangle is The optimal impact energy of the back peak tooth shape is The optimal pulse width of the back peak tooth shape is The optimal impact energy and the optimal pulse width of the optimal pulse function are calculated, wherein F max The reference pulse peak value is equal to the reference pulse width, and Δt is equal to the value of the reference pulse width.

[0097] The device herein can be a server, a PC, a PAD, a mobile phone, etc.

[0098] The application further provides a computer program product, which is suitable for executing the program of the following method steps when executed on a data processing device: obtaining reference datum from test datum, the reference datum comprising i preset times and i preset impact forces corresponding to the i preset times; obtaining five test pulse functions from the reference datum and the five pulse functions, obtaining a reference pulse peak value and a reference pulse width, wherein the reference pulse peak value is the maximum value of the impact forces in the reference datum, the reference pulse width is the pulse width of the reference datum, and the five pulse functions comprise a rectangular pulse, a sine half wave, a versine pulse, a symmetrical triangle, and a back peak tooth shape; calculating residuals of the reference datum and the five test pulse functions to obtain five residual data, and the test pulse function corresponding to the minimum value in the five residual data being an optimal pulse function; and calculating an optimal impact energy and an optimal pulse width of the optimal pulse function.

[0099] Further, obtaining the five test pulse functions from the reference datum and the five pulse functions, obtaining the reference pulse peak value, and obtaining the reference pulse width comprise: determining a first time and a second time from the reference datum, the first time corresponding to a first impact force and the second time corresponding to a second impact force, the first impact force being equal to the second impact force, and the reference pulse width being the difference between the first time and the second time, wherein the first time is less than the second time.

[0100] Further, obtaining the five test pulse functions from the reference datum and the five pulse functions, obtaining the reference pulse peak value, and obtaining the reference pulse width comprise: obtaining a reference impact energy from the reference pulse width.

[0101] Further, obtaining the reference impact energy from the reference pulse width comprises: obtaining the reference impact energy from the formula wherein E ta is the reference impact energy, Δt is equal to the value of the reference pulse width, ia1 is the first time, ia2 is the second time, and F i is the i preset impact force corresponding to the i preset time.

[0102] Further, obtaining the five test pulse functions from the reference datum and the five pulse functions, obtaining the reference pulse peak value, and obtaining the reference pulse width comprise: substituting the reference pulse peak value and the reference pulse width into the five pulse functions to obtain the five test pulse functions; the rectangular pulse is the sine half wave is the versine pulse is the symmetrical triangle is the back peak tooth shape is wherein the value of F max is equal to the value of the reference pulse peak value, and t0 is the reference pulse width.

[0103] Further, the residual of the reference datum and the five test pulse functions is obtained, and the test pulse function corresponding to the minimum residual is determined as the optimal pulse function, comprising: step S601: according to the formula The residual δ is calculated j For any residual i a The first time set is composed of a plurality of first times, ib is the second time set composed of a plurality of second times, F ji For any test pulse function y i The reference datum is obtained; step S602: replacing F ji in step S601, and repeating step S601 five times to obtain five residual data, and comparing the five residual data, the test pulse function corresponding to the residual data with the minimum residual data is the optimal pulse function.

[0104] Further, the optimal impact energy and the optimal pulse width of the optimal pulse function are calculated, comprising: according to the formula The optimal impact energy of the rectangular pulse is The optimal pulse width of the rectangular pulse is The optimal impact energy of the sine half wave is The optimal pulse width of the sine half wave is The optimal impact energy of the versine pulse is The optimal pulse width of the versine pulse is The optimal impact energy of the symmetrical triangle is The optimal pulse width of the symmetrical triangle is The optimal impact energy of the back peak tooth shape is The optimal pulse width of the back peak tooth shape is The optimal impact energy and the optimal pulse width of the optimal pulse function are calculated, wherein F max is equal to the reference pulse peak value, t0 is the reference pulse width, and Δt is equal to the value of the reference pulse width.

[0105] 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 a complete hardware embodiment, a complete 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.) containing computer usable program code.

[0106] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or combination thereof. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or combination thereof.

[0107] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or combination thereof. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or combination thereof.

[0108] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or combination thereof. Figure 1 one or more flowcharts and / or blocks in the flowcharts and / or combination thereof.

[0109] In one typical configuration, the computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0110] The memory can include non-persistent memory and / or volatile memory, such as a random access memory (RAM) including a cache area for the temporary storage of data. The memory can also include non-volatile memory, such as read only memory (ROM) for storing structural information and / or instruction code to boot an operating system. The memory can also include solid state non-volatile memory (e.g., flash memory), disk drives, disk arrays, RAID storage systems, other storage devices, or a combination of these. These memory examples are not meant to limit the scope of computer readable media, but rather are meant to add clarity to the description of computer readable media.

[0111] Computer-readable media includes permanent and non-permanent, movable and non-movable media that can be implemented by any method or technology to store information. The 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 technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible to a computing device. According to the definition herein, computer-readable media does not include transitory media such as modulated data signals and carriers.

[0112] It should also be noted that the terms "comprising", "containing", or any other variant thereof are intended to cover non-exclusive inclusions, such that a process, method, article or apparatus that comprises a list of elements does not only include those elements, but also other elements not explicitly listed, or other elements inherent to such a process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.

[0113] Those skilled in the art will appreciate that 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 entirely hardware embodiment, an entirely 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.) containing computer-usable program code.

[0114] The above merely illustrates the embodiments of the present application and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. An analysis method of a striking force of a percussion machine represented by a pulse function, characterized by, The method comprises: obtaining reference datum according to test data, wherein the reference datum comprises i preset times and i preset impact forces corresponding to the i preset times; obtaining five test pulse functions according to the reference datum and five pulse functions, obtaining a reference pulse peak value, and obtaining a reference pulse width, wherein the reference pulse peak value is the maximum value of the impact force in the reference datum, the reference pulse width is the pulse width of the reference datum, and the five pulse functions comprise a rectangular pulse, a sine half wave, a versine pulse, a symmetrical triangle, and a back peak tooth shape; obtaining the reference pulse peak value and the reference pulse width according to the reference datum and the five pulse functions comprises determining a first time and a second time according to the reference datum, wherein the first time corresponds to a first impact force, the second time corresponds to a second impact force, the first impact force is equal to the second impact force, and the reference pulse width is the difference between the first time and the second time, and the first time is less than the second time; obtaining a reference impact energy according to the reference pulse width; According to the formula The reference impact energy is obtained, wherein E ta The reference impact energy is obtained, wherein E i The reference impact energy is obtained, wherein E calculating residuals of the reference datum and the five test pulse functions to obtain five residual data, wherein the test pulse function corresponding to the minimum value in the five residual data is an optimal pulse function; calculating an optimal impact energy and an optimal pulse width of the optimal pulse function.

2. The method of claim 1, wherein, obtaining the reference pulse peak value and the reference pulse width according to the reference datum and the five pulse functions comprises: The five test pulse functions are obtained by substituting the reference pulse peak value and the reference pulse width into the five pulse functions, the rectangular pulse is The sine half wave is The versed sine pulse is The symmetrical triangle is The back peak tooth shape is Wherein, the value of the F max The value of the t0 is the reference pulse width.

3. The method of claim 1, wherein, obtaining residuals of the reference datum and the five test pulse functions, determining the test pulse function corresponding to the minimum value of the residuals as the optimal pulse function, and comprising: Step S601: Calculate the residual, δ, according to the formula j For any one of the residuals, i a is a first time set consisting of a plurality of first times, ibis a second time set consisting of a plurality of second times, F ji is any one of the test pulse functions, y i is the reference datum;​ Step S602: replace the F in the step S601 ji For the rest of the test pulse function, and repeat the step S601 five times, get five residual data, compare five residual data, the residual data of the smallest residual data corresponding to the test pulse function is the best pulse function.

4. The method of claim 1, wherein, calculating an optimal impact energy and an optimal pulse width of the optimal pulse function, and comprising: According to the formula The optimal impact energy of the rectangular pulse is E. F1 =F max t0, the optimal pulse width of the rectangular pulse is The optimal impact energy of the sinusoidal half-wave is The optimal pulse width of the sinusoidal half-wave is: The optimal impact energy of the sine pulse is The optimal pulse width of the sine pulse is: The optimal impact energy of the symmetrical triangle is The optimal pulse width for the symmetrical triangle is: The optimal impact energy of the rear peak tooth profile The optimal pulse width for the rear peak tooth shape is: Calculate the optimal impact energy and optimal pulse width of the optimal pulse function, wherein the F max The value of Δt is equal to the reference pulse peak value, t0 is the reference pulse width, and Δt is equal to the value of the reference pulse width. 5.An analysis device for representing impact force of an impact machine by a pulse function, comprising: a first obtaining unit configured to obtain reference datum, wherein the reference datum comprises i preset times and i preset impact forces corresponding to the i preset times; a second obtaining unit configured to obtain five test pulse functions according to the reference datum and five pulse functions, obtain a reference pulse peak value, and obtain a reference pulse width, wherein the reference pulse peak value is the maximum value of the impact force in the reference datum, the reference pulse width is the pulse width of the reference datum, and the five pulse functions comprise a rectangular pulse, a sine half wave, a versine pulse, a symmetrical triangle, and a back peak tooth shape; the second obtaining unit comprises a determining subunit configured to obtain the reference pulse peak value and the reference pulse width according to the reference datum and the five pulse functions, and obtain a first time and a second time according to the reference datum, wherein the first time corresponds to a first impact force, the second time corresponds to a second impact force, the first impact force is equal to the second impact force, the reference pulse width is the difference between the first time and the second time, and the first time is less than the second time. The second acquisition unit comprises a first acquisition subunit configured to acquire a reference impact energy according to the reference pulse width; The acquisition subunit comprises an acquisition module configured to acquire the formula The reference impact energy is acquired, wherein E ta The reference impact energy is acquired, wherein E i The i preset impact forces correspond to the i preset times. The first calculation unit is configured to calculate residuals of the reference data and five test pulse functions, to obtain five residual data, and to determine a test pulse function corresponding to a minimum value in the five residual data as an optimal pulse function; The second calculation unit is configured to calculate an optimal impact energy and an optimal pulse width of the optimal pulse function.

6. A computer-readable storage medium, characterized in that, The computer readable storage medium comprises a stored program, wherein the program, when executed, controls a device in which the computer readable storage medium is located to perform the analysis method for representing impact force of an impact machine by a pulse function according to any one of claims 1 to 4.

7. A processor, comprising: The processor is configured to execute a program, wherein the program, when executed, performs the analysis method for representing impact force of an impact machine by a pulse function according to any one of claims 1 to 4.

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