41 results about "Normal load" patented technology

The invention discloses high-voltage wiring harness connector terminal fretting wear test equipment which comprises an equipment base, a high-frequency vibration exciter and a lifting platform are mounted on the equipment base, and a mounting platform is arranged at the top of the lifting platform; a left test piece mounting loading mechanism and a right test piece mounting force measuring device are arranged on the mounting platform. The device can realize a multi-physics field coupling test, current-carrying friction and arc erosion of an electric contact surface in a real working condition are simulated by combining a current load with high-frequency mechanical wear, and the electric-mechanical coupling wear characteristic of a new energy automobile charging terminal is accurately reproduced. The device supports the dynamic adjustment of normal load, simulates the contact pressure change of the left and right test samples of the test terminal in the plugging process through the test sample pin and the test sample jack, can be used for researching the relevance between the fretting wear and the contact resistance of the test terminal under different loads, and realizes the test of the terminal under complex working conditions in a laboratory environment. The test process is convenient, efficient and accurate, and the test cost and the test period are greatly reduced.

The application discloses a kind of rock mass hydraulic fracturing test device and method based on flexible hydraulic pillow stress monitoring, comprising: the rock mass to be tested, is provided with the fracturing hole that penetrates normal direction on it;Hydraulic pillow, including flexible normal load loading hydraulic pillow, horizontal load loading hydraulic pillow and longitudinal load loading hydraulic pillow, through hole is arranged on normal load loading hydraulic pillow, water injection fracturing device, including high-pressure water pump, and the fracturing assembly of high-pressure water pump is connected by high-pressure pipeline, the fracturing assembly is set in the fracturing hole of the rock mass to be tested by through hole;Data acquisition system includes hydraulic pillow pressure sensor connected with hydraulic pillow, waterway pressure sensor being arranged on high-pressure pipeline and data acquisition terminal being electrically connected with hydraulic pressure sensor and waterway pressure sensor.The application can perfectly fit the surface of rock mass to realize flexible loading, the additional stress generated by sealing reinforcement measure is considered, and then the precision of triaxial loading is improved.

The present application relates to the field of rock mass structure plane mechanical test technology, and particularly relates to a field rock structure plane shearing test system and a test method, comprising a horizontally arranged test platform, a concrete encapsulating shell wrapped on a rock sample, a normal load loading system for applying a normal load on the top surface of the concrete encapsulating shell, a shearing load loading system for applying a shearing load on the side surface of the concrete encapsulating shell, and a data test acquisition system for measuring normal pressure, normal displacement and tangential displacement, wherein the normal load loading system and the shearing load loading system are both arranged on the test platform. The present application applies normal pressure and tangential pressure through the normal load loading system and the shearing load loading system respectively, and obtains relevant displacement parameters through the data test acquisition system with higher precision, so as to quantitatively evaluate and analyze the strength characteristics of the structure plane, and solve the problems of large occupation and low reliability existing in the traditional test method.

The invention belongs to the technical field of nuclear energy materials and surface engineering, and particularly relates to application of an MAX phase coating in a lead bismuth environment. The MAX phase coating is deposited on the surface of the structural material, so that the corrosion resistance and wear resistance of the steam generator can be remarkably improved. The result shows that under the conditions that the temperature is 450 DEG C, the normal load is 50N, the displacement amplitude is 75 microns, the vibration frequency is 25Hz and the cycle index is 106, a stable aluminum oxide oxidation layer and a compacted abrasive dust layer can be formed, so that the Ni element is effectively prevented from being dissolved, and the corrosion rate of a structural material is reduced; meanwhile, the abrasion depth of the structural material is reduced by 70% compared with that before protection, the structure is stable, the binding force is high, and the structural material is still kept complete and has no obvious peeling or failure phenomenon even in a long-cycle test.

This invention discloses a fretting fatigue testing device capable of multi-degree-of-freedom loading, belonging to the field of material and component mechanical property testing technology. The device includes a test platform base, a normal load loading mechanism, a normal load support mechanism, a fretting displacement loading mechanism, and a dual specimen clamping device. Left and right support beams are provided on the test platform base. The normal load loading mechanism is located on the right support beam, and the normal load support mechanism is located on the left support beam, forming a closed loop of normal force. The fretting displacement loading mechanism is located on the right support beam. The dual specimen clamping device enables continuous stepless adjustment of the intersection angle with the main specimen. This invention, through the integrated design of adjustable angle, adjustable position, and multi-directional displacement composite loading, solves the problems of existing technologies' inability to accurately simulate complex fretting conditions, fixed contact angles, and insufficient loading accuracy, achieving high-precision and high-reliability fatigue testing of components such as wires under various contact geometries and composite fretting modes.

The invention discloses a fiber reinforced composite material fretting fatigue test clamp suitable for a uniaxial testing machine. The clamp and a test device comprise an upper clamp assembly with a fretting pad limiting device, a lower clamp assembly, a fretting pad, an upper gasket, a lower gasket, a test piece and a stress ring assembly. Wherein the upper clamp assembly and the lower clamp assembly are clamped through a hydraulic chuck and are used for fixing a test piece and transmitting an axial load. The test pieces are arranged in the limiting grooves of the upper and lower clamps, and the upper and lower gaskets are arranged between the two test pieces. The clamp is tightened through the fastening bolt to fix the test piece and prevent slipping; the set screw penetrates through the clamp, the test piece and the gasket to further fix the test piece. The micro-motion pad is arranged in the micro-motion pad limiting groove of the upper clamp, centering is guaranteed, and normal loads are transmitted. The device solves the problem that a fiber reinforced composite material is not matched with a metal material clamp, and has the advantages that the parallelism of a test piece and the centering degree of a micro-motion pad can be ensured, the test piece is prevented from slipping, the test precision is ensured, and the experiment success rate is improved.

The application provides a rock mass weak layer original state solution modification test device and method, which comprises a normal load system for applying a normal stress to a weak layer to be tested, a solution modification system for modifying the weak layer to be tested, a shear load system for applying a shear stress to the weak layer to be tested, and an observation system for observing deformation data in a test process; the normal load system is connected with a rock mass above the weak layer to be tested to simulate an in-situ stress state, the solution modification system is arranged around the weak layer to be tested to realize solution wrapping modification, the shear load system is connected with the weak layer to be tested on a side to carry out a shear mechanical test, and the observation system is arranged corresponding to the weak layer to be tested to collect deformation parameters. The application can carry out the weak layer original state solution modification test, and accurately obtains an influence mechanism of the solution modification on mechanical properties of the weak layer through the shear test.

The invention relates to the technical field of ceiling structures, in particular to an indoor ceiling structure of a large building. Comprising a plurality of keel frames, each keel frame is composed of two main keels distributed front and back, each main keel is provided with a pair of hanging pieces, the lower ends of the main keels are jointly provided with a plurality of auxiliary keels, the main keels are provided with clamping jaws matched with the auxiliary keels in a one-to-one correspondence and clamping mode, the main keels are provided with fastening mechanisms, and a connecting mechanism is arranged between every two adjacent keel frames. Through the synergistic effect of the fastening mechanism and the connecting mechanism, the ceiling structure keeps extremely high stability under the normal load, graded unloading can be achieved through the preset breaking point when the ceiling is overloaded, and the problem of systematic failure caused by insufficient joint strength or sudden breaking of a traditional ceiling is fundamentally solved.

The invention provides a hydraulic heavy-load sealing leakage rate measuring device and method, and belongs to the technical field of sealing element testing. The device aims at solving the problem that leakage rate measurement is not accurate under the heavy load and high pressure composite working condition. The device comprises a test tool for forming a sealing cavity, a hydraulic system for applying a normal load, a liquid supply system for providing a high-pressure medium, and a measurement module comprising a weighing device. The method comprises the steps of installing a sealing ring, applying a load and supplying a high-pressure medium, then collecting and weighing the mass of the leaked medium by using a weighing device, recording the test duration, and finally calculating the leakage rate according to the mass and the duration. The method can truly simulate harsh working conditions, adopts a mass method for direct measurement, is accurate and reliable in result, and gives consideration to both cost and automation degree.

The invention provides a normal load loading device for a fretting fatigue test, which is used for applying a normal load to a fretting fatigue test piece, and comprises a load loading part, the load loading part comprises a stress ring and bridge type gaskets, at least two bridge type gaskets are oppositely arranged in the stress ring, and the bridge type gaskets are arranged in the stress ring; the bridge type gasket is used for applying a normal load to the opposite surface of the fretting fatigue test piece; the supporting part comprises an arc sliding rail, the arc sliding rail is in sliding connection with the stress ring, and the stress ring is driven to rotate through the arc sliding rail. The bridge type gasket can automatically and symmetrically contact with the two sides of the test piece in the normal load loading process, the test precision and the test efficiency are improved, the centering process with the test piece is simple and convenient during use, and the clamping angle of the test piece is not unique.

The invention relates to a method and a system for testing rolling load performance of a moving surface layer. The method comprises the following steps: fixing a moving surface layer sample to be tested on a test base and determining a rolling test area; a rolling load spectrum comprising a plurality of test periods is constructed, at least one different rolling load parameter is set in different test periods, and the parameters comprise one or more of normal load, contact pressure, rolling speed, reciprocating stroke, rolling path width and cycle index; driving a roller assembly to apply a reciprocating rolling load to the test area according to the load spectrum, and collecting multiple types of test data; performing time synchronization, de-noising and feature extraction on the data to obtain a damage feature set of residual indentation, rigidity attenuation, wear rate, dusting, peeling and the like; generating a rolling load performance score and / or grade determination; and when the two adjacent test periods meet the termination conditions such as the damage threshold, the score threshold or the maximum period number and the like, terminating and outputting a result.

A load adjusting device that can improve the safety of work performed by a work machine. [Solution] The load adjustment device 10 of the present disclosure comprises a load acquisition unit 11 that acquires the bucket load, which is the load of the transported goods in the bucket of the work machine; a determination unit 14 that determines whether the bucket load acquired by the load acquisition unit 11 is equal to or less than a predetermined value; and a bucket angle control unit 15 that, when the determination unit 14 determines that the bucket load exceeds the predetermined value, controls the angle of the bucket to reduce the amount of transported goods in the bucket, thereby making the bucket load equal to or less than the predetermined value, and the predetermined value is set to be equal to or less than the normal load specified for the work machine.

This application discloses a method and apparatus for container replica planning. It acquires the fluctuation characteristics of load data for a target service within a preset time period and calculates a buffer coefficient based on these characteristics. The buffer ratio can be adaptively and precisely adjusted according to the fluctuations in actual load data; for example, the buffer ratio is reduced for services with low fluctuations and increased for services with high fluctuations. This allows for pre-planning of an appropriate number of replicas based on the buffer coefficient. Furthermore, it can automatically adjust under both normal load data fluctuations and abnormal traffic surges, demonstrating strong adaptability. The number of replicas is obtained based on the buffer coefficient, pre-acquired load forecast values, and the preset configuration of the target service. This enables dynamic container replica planning, adaptively and precisely controlling the number of container replicas, effectively avoiding resource waste or shortages caused by insufficient or excessive replicas, thus improving resource utilization efficiency and service quality.

The invention provides an analysis method for vibration wear of a lead-based reactor winding wire positioning fuel assembly, and belongs to the technical field of lead-based fast reactor fuel analys.The analysis method comprises the steps that the normal load between a fuel rod and a winding wire winding the fuel rod, the sliding distance and the stress of the winding wire are obtained; and determining the wear depth of the cladding of the fuel rod according to the normal load, the slippage distance and the stress of the winding wire. The fuel rod cladding wear depth is detected through a numerical simulation method, the blank of a reactor core fuel assembly vibration wear numerical analysis method is filled up, a fuel assembly vibration wear preliminary research means is provided for the initial stage of fast reactor core design, the uncertainty during fast reactor research design and safety analysis is solved, and the method is suitable for mass production. And the research and design efficiency of the lead-based fast reactor core is improved.

The embodiment of the application provides a non-uniform load rough structure surface direct shear test method and system, and belongs to the technical field of rock mass mechanics test. The method comprises the following steps: obtaining a joint structure surface grayscale image, and extracting joint profile coordinate data of a joint structure surface profile based on the joint structure surface grayscale image; constructing a three-dimensional entity model of the joint structure surface based on the joint profile coordinate data; placing a rock-like joint structure surface sample constructed based on the three-dimensional entity model of the joint structure surface into a direct shear loading device, and executing shear loading after non-uniform normal load is applied to the rock-like joint structure surface sample, so as to obtain shear response data of the rock-like joint structure surface sample; and analyzing the shear response data to obtain the shear resistance characteristic result of the rock-like joint structure surface sample. According to the application scheme, the shear behavior of the rough joint structure surface under the non-uniform load condition can be quantified, reconstructed and mechanically characterized with spatial resolution.

This invention provides a method and system for predicting the shear strength of a structural surface under non-uniformly distributed loads, belonging to the field of rock mechanics. The method includes: acquiring the surface roughness parameters of the target structural surface and determining the distribution of the non-uniformly distributed normal loads acting on the structural surface and the magnitude of the average normal stress; establishing a shear analysis model of the structural surface and obtaining shear response data of the structural surface under non-uniformly distributed normal loads; determining the peak shear strength and residual shear strength of the structural surface; constructing a shear strength prediction model of the structural surface and outputting the predicted shear strength results of the structural surface based on the shear strength prediction model. This invention achieves a unified characterization of the actual stress state of the structural surface and a highly consistent prediction of shear strength by simultaneously introducing the surface roughness characteristics and the non-uniformly distributed normal load mechanism during the shear strength prediction process.

The invention discloses a buffer keel structure, a modular floor unit and a quick assembly sports floor system, and relates to the technical field of sports floors, the structure comprises a composite keel and a plurality of elastic pads; the elastic cushion is fixed to the bottom face of the composite keel, and the buffering supporting face forms a first buffering area and a second buffering area which are different in height. Under the normal load condition, the higher first buffer area independently bears the load and provides first-stage buffer; when the load exceeds a preset threshold value, the first buffer area is compressed to be flush with the second buffer area, the first buffer area and the second buffer area bear the load together, and secondary buffer is provided. By means of the graded buffering design, load self-adaptive elastic supporting is achieved, the daily use comfort is guaranteed, meanwhile, the protection capacity under high-strength impact is enhanced, and the buffering performance, safety and adaptability to different exercise intensities of the sports floor are remarkably improved.

The application provides a rock mass weak layer original state solution modification test device and method, which comprises a normal load system for applying a normal stress to a weak layer to be tested, a solution modification system for modifying the weak layer to be tested, a shear load system for applying a shear stress to the weak layer to be tested, and an observation system for observing deformation data in a test process; the normal load system is connected with a rock mass above the weak layer to be tested to simulate an in-situ stress state, the solution modification system is arranged around the weak layer to be tested to realize solution wrapping modification, the shear load system is connected with the weak layer to be tested on a side to carry out a shear mechanical test, and the observation system is arranged corresponding to the weak layer to be tested to collect deformation parameters. The application can carry out the weak layer original state solution modification test, and accurately obtains an influence mechanism of the solution modification on mechanical properties of the weak layer through the shear test.

The application discloses a rotatable lateral pressure ring and longitudinal two-dimensional shearing component and device, which comprises a test piece shearing mechanism and a lateral rotation pressure mechanism; the test piece shearing mechanism comprises a first shearing assembly and a second shearing assembly; the first shearing assembly can rotate relative to the second shearing assembly under the drive of an external different transmission mechanism; meanwhile, the first shearing assembly can also move longitudinally relative to the second shearing assembly, so as to realize ring and longitudinal two-dimensional shearing; the lateral rotation pressure mechanism takes a lower guide rail plate as a bearing and comprises a rotating mechanism and a lateral pressure mechanism; the rotating mechanism is used for supporting the lateral pressure mechanism and adjusting the pressure direction and position of the lateral pressure mechanism; the lateral pressure mechanism is arranged on the rotating mechanism and is used for applying loads with different directions and sizes to different positions of the test piece. The application can realize synchronous ring and longitudinal shearing of a circular structure surface, and can also provide a normal load through the lateral rotation pressure mechanism to simulate stress conditions under a complex service environment.

This invention relates to the field of zinc alloy plastic processing technology, specifically to a medical zinc alloy and its applications. The medical zinc alloy of this invention is composed of the following chemical components by mass percentage: Ag 0.01%~0.02%, Mn 0.01%~0.02%, Cu 0.05%~0.30%, Zr 0.01%~0.03%, with the balance being Zn. This invention utilizes a synergistic deformation process involving isothermal multi-directional forging, medium-low temperature variable diameter extrusion, gradient cooling heat treatment, and surface mechanical grinding. The resulting medical zinc alloy possesses a fine-grained matrix structure and a gradient nanostructure on the surface. This not only enhances the alloy's resistance to plastic deformation under normal loads but also, through the synergistic effect of high-density dislocation structure and severe lattice distortion, increases the resistance to dislocation movement and reduces grain boundary slip, giving the medical zinc alloy comprehensive mechanical properties that combine high hardness and high toughness.

The application discloses an elevator step detection device, which comprises a seat body, a fixing assembly, a pressure detection mechanism, a horizontal detection mechanism and a displacement detection part. The fixing assembly is used for fixing the step. The pressure detection mechanism comprises a downward pressing part. The horizontal detection mechanism comprises two side pressing parts. The pressure detection mechanism is arranged to apply a certain load to the upper end surface of the step when the downward pressing part moves downward, so that the displacement detection part detects the bending deformation resistance of the step under normal load. The horizontal detection mechanism is arranged to press the side end of the step when the two side pressing parts move close to each other, so that the displacement detection part detects the deformation amount of the step in the up-down direction under abnormal load when the step is blocked by foreign matters and subjected to abnormal load. Thus, the problem that the existing detection method cannot truly detect the bending deformation resistance of the step under abnormal load is solved.

The invention relates to a fretting fatigue testing device and method suitable for a seabed connector, and the device comprises a frame which is of a square frame structure; the number of the clamps is two, the first ends of the two clamps are connected with the inner wall of the frame through cushion blocks, and the second ends of the two clamps are used for clamping the two axial ends of a sample; the number of the loading rods is two, the two loading rods are vertically arranged at the two axial ends of the sample, and the ends, close to the sample, of the two loading rods are connected with the two cushion blocks through connecting rods; the number of the actuators is four, the actuators are arranged on the four outer walls of the frame, and the four actuators are connected with the two loading rods and the two clamps respectively and used for applying loads to the sample. The device comprehensively considers the influence of the normal load, the shear load, the overall tension and the torque on the fretting fatigue life.

This application provides an oil and gas treatment method, equipment, medium, and product. The method includes the following steps: In standby mode, based on the rate of change of oil and gas pressure in the storage tank, it is determined whether the oil and gas load is in a high-load mode or a normal-load mode; and differentiated start-up parameters are matched for different modes. A lower start-up pressure threshold is used for the high-load mode to achieve rapid start-up, while a higher start-up pressure threshold is used for the normal-load mode to avoid frequent start-ups and shutdowns. After the system starts, key operating parameters such as oil and gas temperature and emission concentration are continuously monitored and compared with safety thresholds to execute corresponding regulatory control or interruption protection operations until the shutdown conditions are met, at which point the system returns to standby. Implementing the technical solution provided in this application, through dynamic prediction and differentiated control of oil and gas load, enables the system to respond quickly under high load and achieve stable energy saving under normal load, realizing precise and forward-looking closed-loop management.

The application discloses a bidirectional load integrated piezoelectric performance testing device, which comprises a base, a horizontal tensile load unit, a normal compression load unit, a driving mechanism, a testing unit and a driving control unit; the driving mechanism is used for driving the first lead screw of the horizontal tensile load unit and the transmission rod of the normal compression load unit to rotate; the testing unit is used for being connected with a device to be tensile tested and a device to be pressed tested; and the driving control unit is used for being connected with the testing unit, the driving mechanism, a tensile stress sensor and a pressure sensor. The horizontal tensile load unit can be used for horizontal tensile load testing, the normal compression load unit can be used for vertical normal load testing, and the piezoelectric performance of a novel composite piezoelectric material in the vertical compression and horizontal tensile directions can be comprehensively tested.

The invention provides an oil gas treatment method and device, a medium and a product, and the method comprises the following steps: in a standby state, based on the change rate of oil gas pressure in an oil storage tank, determining that an oil gas load is a high load mode or a conventional load mode; differentiated starting parameters are matched for different modes, a lower starting pressure threshold value is adopted for a high-load mode to achieve quick starting, and a higher starting pressure threshold value is adopted for a conventional load mode to avoid frequent starting and stopping. After the system is started, key operation parameters such as the oil gas temperature and the discharge outlet concentration are continuously monitored and compared with safety threshold values so as to execute corresponding adjustability control or interruption protection operation, and the system returns to a standby state until shutdown conditions are met. By implementing the technical scheme provided by the invention, through dynamic pre-judgment and differential control of the oil and gas load, the system can quickly respond under a high load and can stably save energy under a conventional load, and precise and prospective closed-loop management is realized.

The application discloses a near-sample fluid constant-temperature reciprocating friction force testing device, which comprises a frame, a sample fixing mechanism, a force applying mechanism, a six-dimensional force sensor and a reciprocating motion mechanism; the force applying mechanism is fixedly connected to the upper end of the frame; the sample fixing mechanism comprises an upper sample clamping device and a lower sample table; the upper sample clamping device is connected to the lower end of the force applying mechanism; the lower sample table is arranged on the reciprocating motion mechanism; the reciprocating motion mechanism is arranged at the lower end of the frame; and the six-dimensional force sensor is arranged between the upper sample clamping device and the force applying mechanism. The application can increase the stroke along the load direction and improve the testing precision of force applying / force receiving by designing a shear-brace lifting mechanism and a precision screw mechanism in series combination to apply a normal load; and the sample clamping device with an inner flow channel can quickly control the temperature of the sample in the friction testing process, and reduce the influence of heat generated by friction on the test results.

The invention discloses a critical load determination method and device of a film, equipment and a storage medium. According to the method, a total input work load curve is determined through a film scratch experiment, a baseline energy load curve of a whole stage is determined based on an instantaneous normal load and total input work of an initial stage of the scratch experiment, and then a failure energy load curve is determined according to an energy balance method; according to the method, the failure energy load curve is subjected to first-order derivation, the peak value of the first-order derivative curve is searched to determine the critical load of the thin film, the subjectivity of manual observation and the fuzziness of a friction curve are eliminated, and the repeatability of the result is greatly improved; moreover, according to the method, cracking energy and stripping energy do not need to be calculated respectively, the physical problem of directly calculating the cracking energy and the stripping energy is avoided, the peak value of the first-order derivative of the failure energy load curve corresponds to stripping in adhesion failure more accurately physically, and therefore the critical load can be accurately determined based on the stripping point.

This invention relates to the field of ceiling structure technology, and particularly to an interior ceiling structure for large buildings; it includes multiple sets of keel frames, each set consisting of two main keels distributed front and rear, with a pair of hanging members on the main keel, and multiple secondary keels at the lower end of the main keels. The main keels are equipped with clips that correspond to and engage with the secondary keels, and a fastening mechanism is provided on the main keels. A connecting mechanism is provided between adjacent keel frames. This invention, through the synergistic effect of the fastening and connecting mechanisms, enables the ceiling structure to maintain extremely high stability under normal loads, and under overload conditions, it can achieve graded unloading through preset fracture points, fundamentally solving the systemic failure problem caused by insufficient node strength or sudden fracture in traditional ceilings.

The invention discloses a load balancing method, a load balancing device, load balancing equipment and a readable storage medium, and can enable a plurality of pieces of load balancing equipment to bear the flow of the same VIP service at the same time by utilizing the equivalent multipath characteristic of a router. According to the method and the system, the load balancing equipment is used as the load balancing equipment, and the other normal load balancing equipment can process the flow of the existing connection in the scene of load balancing equipment failure by using the modes of session information synchronization and long and short mask routing release, so that the high availability is ensured, dynamic capacity expansion and dynamic capacity reduction are supported, and the full-active characteristic of the load balancing cluster is realized.

The invention discloses a gear meshing rigidity obtaining method considering tooth surface waviness, and belongs to the technical field of gear transmission. The method aims at solving the problem that the deviation between the obtained rigidity and the actual working condition is large due to the fact that the influence of tooth surface waviness is not fully considered in an existing gear meshing rigidity obtaining method. The method comprises the following steps: establishing a random data matrix obeying normal distribution; constructing a Gaussian filter function based on the waviness information of the actual gear tooth surface, and generating a Gaussian filter matrix; performing convolution calculation on the random data matrix and the Gaussian filter matrix to generate a waviness matrix; contact lines and contact points are arranged in the acting surface of the gear at equal intervals, and contact deformation of all the contact points is calculated based on the linear contact elastic deformation theory; in combination with the waviness matrix, establishing a contact equation considering the waviness of the tooth surface; and establishing a static balance equation of the contact point, solving the static balance equation to obtain the normal load of the contact point, and further obtaining the meshing rigidity of the gear pair. The method is mainly used for obtaining the gear meshing rigidity of the tooth surface waviness.