255 results about "Material fatigue" patented technology

The invention discloses a self-adaptive constant-force vibration reduction mechanism base and a robot, and belongs to the technical field of specialized robots. Two sets of buffer units and vibration reduction units are arranged at the front end and the rear end of the base correspondingly; driving wheels are arranged on the buffer unit and the vibration reduction unit; the buffer unit comprises a horizontal buffer structure, a vertical buffer structure and a support; the horizontal buffer structure is slidably connected with the support in the vertical direction; the top of the vertical buffer structure is hinged to the support, and the bottom is fixedly connected with the driving wheel; the support is fixedly connected with the base; the vibration reduction unit comprises a rotating support and a constant force component. According to the self-adaptive constant-force vibration reduction mechanism base and the robot, the problems that in the prior art, a vibration reduction mechanism cannot completely avoid vibration generated by a wheel type moving device in the vertical direction when the wheel type moving device moves on an uneven road surface, and consequently bolt looseness, wire harness interface looseness, material fatigue strain and the like occur can be effectively solved; and therefore, the wheel type moving device has a fault in the operation process and cannot stably operate, and the like.

The invention relates to an anchoring system life intelligent evaluation method, system and device and a medium, and the method comprises the steps: constructing a topological network through the space coordinates of anchoring points and the rigidity of components, and quantifying the mechanical correlation between nodes; the load is monitored in real time and compared with a design value, and the dynamic sensitivity of the node is calculated by fusing material strength characteristics; identifying a set of overload source nodes based on a sensitivity threshold; a Monte Carlo path simulation technology is adopted, a material fatigue accumulation effect is combined to model a failure conduction probability, and a risk conduction path and a strength index are generated; integrating historical degradation data to predict single anchor life, and coupling the maximum path risk and the minimum single anchor life to calculate a system attenuation coefficient; and outputting an evaluation report containing the remaining service life and the position of the high-risk unit. The method breaks through the limitation of traditional single-anchor isolated evaluation, realizes dynamic quantification of the failure conduction effect of the multiple anchoring units, and solves the problem of maintenance decision blindness caused by conduction effect deficiency.

The invention discloses a constant-force vibration reduction mechanism and a robot, and belongs to the technical field of specialized robots, the constant-force vibration reduction mechanism comprises at least two vibration reduction units arranged on a base and a plurality of driving wheels consistent with the vibration reduction units; the vibration reduction unit comprises a rotating support and a constant force component. The rotating bracket is rotatably connected with the base; the rotating bracket is respectively connected with the driving wheel and the constant force component; the constant force component is used for applying counter-acting force to the base, and it is guaranteed that the base and an upper structure of the base are kept stable in the vertical direction in the moving process. According to the constant-force vibration reduction mechanism and the robot, the problems that in the prior art, a vibration reduction mechanism cannot completely avoid vibration generated by a wheel type moving device in the vertical direction when the wheel type moving device moves on an uneven road surface, and consequently bolt looseness, wire harness interface looseness, material fatigue strain and the like occur can be effectively solved; and therefore, the wheel type moving device has a fault in the operation process and cannot stably operate, and the like.

The invention discloses a method for predicting the residual life of an existing asphalt pavement structure, particularly relates to the technical field of computer simulation and data processing, and is used for solving the problem that the existing prediction method cannot efficiently represent the non-uniformity of an existing pavement material and the dynamic environment load influence on the premise of ensuring the precision. Existing damage data of a road surface are acquired to construct a simulation model reflecting a real initial state, material fatigue parameters are acquired in combination with cross-scale analysis, a dynamic environment boundary is driven by utilizing climate time sequence data, and then time-frequency coherence analysis is performed on a damage mode and a climate load to identify a high-threat working condition, so that the high-threat working condition is identified. And finally, preferentially operating high-fidelity thermal-mechanical coupling numerical simulation aiming at a high-threat working condition, and mapping damage evolution data output by simulation to a macroscopic performance degradation process so as to determine the residual fatigue life.

The invention discloses a constant-force buffering mechanism and a robot, and belongs to the technical field of specialized robots, the constant-force buffering mechanism comprises at least two constant-force buffering assemblies arranged on a base and a plurality of driving wheels consistent with the constant-force buffering assemblies; the constant-force buffering assembly comprises a main support and a constant-force spring piece. The driving wheel is telescopically connected to the main bracket through a constant-force spring piece; the constant-force spring piece exerts counter-acting force on the base through vertical telescopic deformation so as to offset the gravity of the base and the gravity of the upper structure of the base, and it is guaranteed that the base and the upper structure of the base are kept stable in the vertical direction in the moving process. According to the constant-force buffering mechanism and the robot, the problems that in the prior art, a damping mechanism cannot completely avoid vibration generated by a wheel type moving device in the vertical direction when the wheel type moving device moves on an uneven road surface, and consequently bolt looseness, wire harness interface looseness, material fatigue strain and the like occur can be effectively solved; and therefore, the wheel type moving device has a fault in the operation process and cannot stably operate, and the like.

The invention relates to the technical field of bridge vibration reduction, in particular to a double-spring frequency conversion lever tuned mass damper device and a regulation and control method. The double-spring frequency conversion lever tuned mass damper device comprises a base, a lever, a mass block, a first spring and a second spring. Wherein the base is used for being connected with a to-be-damped structure; the middle of the lever is rotationally connected with the base; the mass block is arranged on the lever and located on one side of the base. The first spring and the second spring are located on the two sides of the base respectively, connected with the lever or abut against the lever and used for balancing the gravity of the mass block, and the first spring is located between the mass block and the base. The problems that in the prior art, when the spring end stress and the mass block end stress are amplified in a lever proportion, the pin shaft stress is too large, damping is too large, debugging is difficult, the pin shaft and a lever need to be thickened or made of special alloy, the manufacturing cost is increased, and potential safety hazards are possibly caused by material fatigue are solved.

The invention discloses a vibration fatigue life prediction method and system based on a working condition adaptive spectrum. According to the method, load information of a target structure under various service conditions is obtained, and frequency domain load descriptions corresponding to different working conditions are subjected to weighted fusion according to working condition weights, so that a working condition adaptive load spectrum capable of reflecting real service characteristics is constructed; on the basis, frequency domain stress response of the structure under the random vibration condition is obtained in combination with a structural dynamics analysis model, equivalent stress description of dominant fatigue damage is further determined through a multi-axis equivalent criterion, and fatigue damage distribution is calculated through a frequency domain fatigue analysis method; and finally, predicting the vibration fatigue life of the structure in combination with a material fatigue performance curve and an environment-related performance correction relation. Compared with the prior art, the method has the advantages that the multi-working-condition load superposition effect and the service environment influence can be effectively considered, and the accuracy and engineering applicability of vibration fatigue life prediction are improved.

The invention discloses a compressed air energy storage underground cavern temperature adjusting structure and a manufacturing method thereof, and belongs to the technical field of compressed air energy storage, the temperature adjusting structure is sequentially provided with a flexible sealing layer, a phase change temperature adjusting layer and an optical fiber sensing layer from inside to outside, the optical fiber sensing layer is connected with the inner wall of a concrete lining, and the phase change temperature adjusting layer is used for stabilizing temperature fluctuation in a cavern; the optical fiber sensing layer is used for monitoring temperature and a strain field in real time and is electrically connected with an external fiber grating sensor grid monitoring system through a sensor lead. According to the method, latent heat can be absorbed or released through the phase change process, temperature fluctuation in the cavern can be effectively stabilized, material fatigue and structural damage caused by thermal stress circulation are reduced, real-time monitoring of the temperature and strain of the sealing layer is achieved, and the sensing capacity and the early warning level of the operation state of the cavern are improved.

The invention provides an endoscope channel inner surface damage assessment method, and relates to the technical field of information, and the method comprises the steps: scanning an endoscope channel inner surface through an optical imaging technology to obtain spectral data containing microscopic texture features, and carrying out Fourier transform to obtain channel surface feature distribution maps at different use stages; performing deep learning neural network processing on the surface feature distribution map, extracting texture parameters related to material fatigue evolution and a chemical corrosion mechanism, and determining distribution features of a surface stress whitening microcell and a nano-crack network according to the texture parameters; and performing predictive analysis on the long-term use durability of the inner surface of the endoscope channel in combination with the damage risk level and the periodic cumulative stress data, and generating a final damage degree evaluation report. The micro texture features of the inner surface of the channel are obtained through an optical imaging technology, texture parameters related to material fatigue and chemical corrosion are extracted, molecular chain breakage and orientation rearrangement risks are evaluated, and the damage degree of the inner surface is judged.

The invention discloses a self-adaptive constant-force buffering mechanism base and a robot, and belongs to the technical field of specialized robots. Two sets of buffering units and constant-force buffering assemblies are arranged at the front end and the rear end of the base correspondingly; driving wheels are arranged on the buffer unit and the constant-force buffer assembly; the buffer unit comprises a horizontal buffer structure, a vertical buffer structure and a support; the horizontal buffer structure is slidably connected with the support in the vertical direction; the top of the vertical buffer structure is hinged to the support, and the bottom is fixedly connected with the driving wheel; the support is fixedly connected with the base; the constant-force buffering assembly comprises a main support and a constant-force spring. The self-adaptive constant-force buffer mechanism base and the robot can effectively solve the problems that a damping mechanism in the prior art cannot completely avoid vibration generated by a wheel type moving device in the vertical direction when the wheel type moving device moves on an uneven road surface, so that bolt looseness, wire harness interface looseness, material fatigue strain and the like occur; and therefore, the wheel type moving device has a fault in the operation process and cannot stably operate, and the like.

The invention provides a cross-scale model enhanced fatigue damage prediction method and system, and belongs to the field of material fatigue performance prediction. The method comprises the following steps: constructing a discrete dislocation kinetic model and a cyclic crystal plastic model, and calibrating parameters of the discrete dislocation kinetic model; determining to-be-optimized parameters of the cyclic crystal plastic model and inverting the optimal values of the to-be-optimized parameters to obtain a calibrated cross-scale mechanical model; importing the initial microstructure features of the material into a cross-scale mechanical model to obtain an extended data set containing multi-scale features and fatigue damage results; and constructing a full-connection neural network prediction model, carrying out training based on the extended data set, calculating the Shapley value of the input feature by using a model interpretability tool, and outputting the contribution degree of the multi-scale microstructure feature to the fatigue damage. According to the method, cross-scale interpretable prediction from a micromechanism to macroscopic performance is realized, and a new direction is provided for accurate evaluation of the fatigue life of the heterogeneous material and optimization design of a microstructure.

The invention discloses a self-adaptive constant-force buffering mechanism and a robot, and belongs to the technical field of specialized robots, the self-adaptive constant-force buffering mechanism comprises at least two buffering units arranged on a base and a plurality of driving wheels consistent with the buffering units; the plurality of driving wheels are respectively connected with the base through the buffer units; the buffer unit is used for applying counter-acting force to the base to counteract the gravity of the base and the upper structure of the base, and it is guaranteed that the base and the upper structure of the base are kept stable in the vertical direction in the moving process; the buffer unit comprises a horizontal buffer structure, a vertical buffer structure and a support. According to the self-adaptive constant-force buffering mechanism and the robot, the problems that in the prior art, a damping mechanism cannot completely avoid vibration generated by a wheel type moving device in the vertical direction when the wheel type moving device moves on an uneven road surface, and consequently bolt looseness, wire harness interface looseness, material fatigue strain and the like occur can be effectively solved; and therefore, the wheel type moving device has a fault in the operation process and cannot stably operate, and the like.

The present application relates to a kind of electromagnetic linear reciprocating motor, it is characterized in that the end of elastic connecting piece and support frame connection is equipped with the connecting arm of transverse extension, and make the at least partial edge of both sides of electromagnet in horizontal direction exceed the joint of connecting arm and support frame and support under connecting arm.Effective effect is to increase connecting arm, interval can be formed between elastic connecting piece and support frame, not only play the role of connection and fixation and limit the displacement of swing frame in vertical direction, realize the linear reciprocating swing of swing frame.Meanwhile, it can also use the partial edge of both sides of electromagnet to support the connecting arm, reduce the external force borne by connecting arm, avoid the joint of connecting arm and support frame to produce material fatigue and deformation, prevent the joint of connecting arm and support frame from material fatigue and deformation collapse, ensure the parallelism of permanent magnet and swing frame linear reciprocating swing and the cooperation precision and hair trimming performance of the moving blade and static blade above swing frame.

This invention discloses a non-destructive testing method for evaluating the fatigue characteristics of long-life pavement materials, belonging to the field of pavement material performance testing technology. The method includes the following steps: mapping the detection data collected by each sensing unit in an intelligent sensing array to the same time reference, constructing a continuous and consistent time-stamped acquisition chain, and generating a time-stamped consensus band at the end of the time-stamped acquisition chain. By constructing the time-stamped acquisition chain and consensus band, this invention identifies the dominance switching moments of multi-source detection data, divides fatigue evolution stages, rearranges the data output order, constructs a relay sequence, and introduces a dynamic control mechanism to release the dominant signal segment by segment, achieving continuous expression and jump suppression of the fatigue state during the dominance switching process.

The invention discloses an automatic positioning and turning device for the blank end face of an air cylinder seat, belongs to the technical field of turning machining, and aims to solve the problems that in long-term use, a clamp is prone to being comprehensively influenced by material fatigue and part abrasion, obvious positioning deviation occurs, and stable machining precision is difficult to maintain. A plurality of machining machine arms are installed in an inner cavity of the machining table, a steering motor is installed at the bottom of the inner cavity of the machining table, and a steering structure is installed at the top of the steering motor. And tight clamping of the inner hole of the workpiece is achieved. The auxiliary supporting design of the auxiliary supporting plate is matched, the abrasion gap between the clamp and the workpiece can be filled in a targeted mode, loosening and deviation are avoided, compared with a traditional fixing mode, the positioning precision is remarkably improved, the radial deviation during end face turning is effectively reduced, and the consistency of the machining size is guaranteed.

The application belongs to the field of material performance testing of mechanical structure strength, and particularly relates to an ultrasonic fatigue experiment monitoring method based on digital twinning. The method is based on an ultrasonic fatigue testing machine platform, test data such as frequency, temperature and load are collected, an ultrasonic fatigue digital twinning model of the test object is established, and real-time online monitoring of ultrasonic fatigue and life prediction are carried out in combination with a fatigue life prediction model. Compared with the traditional test method, the application combines ultrasonic detection data and digital twinning model technology to realize prediction and evaluation of the material fatigue life, improve the test efficiency, reduce the cost of long-life testing, and improve the accuracy and reliability of the test data.

The application discloses a kind of fluorite tailing material fatigue-resistant water-stable base and preparation method thereof.Belongs to the technical field of solid waste utilization.Preparation of the fluorite tailing material fatigue-resistant water-stable base aggregate ratio is as follows: gravel, river sand, fluorite tailing material and tap water quality ratio is as follows: 55-65 wt%, 30-35 wt%, 5-10 wt% and 40-45 wt% tap water.In the application, fluorite tailings are used as raw materials for building materials, which is a reasonable way of resource utilization, and is also an inevitable demand for promoting ecological protection and high-quality development in the Yellow River Basin.Compared with traditional natural materials, it can also reduce carbon emissions and production energy consumption.When applied to water-stable base, it improves its fatigue resistance, prolongs the service life of water-stable base and improves economic efficiency.

The utility model discloses a kind of windproof safety fences, belong to windproof field, to solve the material fatigue and structural damage caused by not opening area directly by wind force impact under prior art, not only reduce the wind stability of punching fence, shorten its actual service life, also possibly lead to fence in strong wind environment Partial deformation, fracture even overall overturn, bring hidden trouble to the safety of surrounding personnel and property problem. Including stand, the lower end of the stand is welded with mounting plate, the front end of the stand is provided with sealing plate, the left end inside the sealing plate is provided with first bolt, windproof mechanism is arranged between the stand, and windproof mechanism includes semicircular cylindrical frame fixedly connected between stand, semicircular cylindrical frame inside is connected with round shaft, rotating plate is fixedly connected with outside of round shaft at equal distance, the inside of the stand is provided with counterweight unit.

The utility model discloses an efficient air cooler which comprises a fan shell, a motor fixedly connected to the inner wall of the fan shell and a hub with blades, a first cavity is formed in the hub, an output shaft of the motor penetrates through the fan shell and is fixedly connected with the inner wall of the first cavity, and a rotating barrel internally provided with a second cavity is fixedly connected to the fan shell. The rotating barrel is fixedly connected with a water inlet pipe, the water inlet pipe is communicated with the second cavity, the rotating barrel is fixedly connected with a water drainage pipe, and the water drainage pipe is communicated with the second cavity. The water inlet pipe is used for conveying cooling water to enter the second cavity to cool the hub and the blades through the first cavity, efficient heat absorption is achieved through the high heat capacity characteristic of the water cooling medium, and particularly for the thermal stress concentration area of the joint of the blades and the hub, the hidden danger of material fatigue caused by local high temperature can be accurately eliminated.

The invention discloses a material fatigue test method and device. The method comprises the following steps: acquiring an equipment parameter of the fatigue testing machine, and acquiring a first control parameter for controlling a load controller of the fatigue testing machine; constructing a fatigue test reference model based on the equipment parameters and the first control parameters; the load controller and the amplitude compensation controller are used for controlling the fatigue testing machine to conduct fatigue testing on the target material, fatigue testing simulation is synchronously conducted on the target material on the basis of the fatigue testing reference model, and the amplitude compensation controller is used for controlling the fatigue testing machine to conduct fatigue testing on the target material every second preset period. Compensating the amplitude of the load control signal according to the output load amplitude of the fatigue testing machine; and adjusting the first control parameter based on the difference between the fatigue test result and the fatigue test simulation result every first preset period. The technical problem that in a high-frequency fatigue test, the amplitude of a response curve of a fatigue testing machine is attenuated, and the accuracy of the fatigue test is affected is solved.

The invention relates to the technical field of transformer substation equipment foundations, in particular to a fabricated prestressed fiber concrete electric reactor foundation which comprises concrete blocks and non-metal prestressed reinforced anchor bars. The multiple concrete blocks are combined in the circumferential direction to form annular bases, at least two annular bases are arranged in the axis direction, and grouting grooves are formed in the two contact end faces of the adjacent annular bases. The reinforcing anchor bars are used for connecting the concrete blocks of the same annular base. The non-metal prestressed reinforced anchor bars are adopted to replace metal reinforced materials, a closed conductive loop in an alternating magnetic field is cut off, electromagnetic eddy currents are eliminated, local overheating of base materials and generation of additional stress are avoided, material fatigue caused by thermal stress circulation is prevented, the durability and dimensional stability of the electric reactor base in the long-term electromagnetic environment are improved, and the service life of the electric reactor base is prolonged. The bearing capacity and stability are guaranteed, and aging is delayed.

The utility model relates to an iron tower anti-falling rope tension adjusting tensioning wheel device which comprises an anti-falling rope body, a rope winding part and a tensioning part, the rope winding part comprises a first arc-shaped wheel, a second arc-shaped wheel and a plurality of fixing clamps, and the second arc-shaped wheel is embedded in the first arc-shaped wheel; a first wheel groove is formed in the outer edge of the first arc-shaped wheel; a second wheel groove is formed in the outer edge of the second arc-shaped wheel; the anti-falling rope body is wound in the second wheel groove and led out from the two ends of the first wheel groove, one end of the anti-falling rope body is connected with the top of the iron tower, and the two sides, close to the first arc-shaped wheel, of the anti-falling rope body are combined and connected through a plurality of fixing clamps; the tensioning part comprises a fixing frame and a turn buckle, one end of the turn buckle is connected with the fixing frame, and the other end of the turn buckle is connected with the second arc-shaped wheel. The tensioning wheel is simple in structure and convenient to operate, the tension adjusting stroke is shortened, the concentrated stress of the outer layer of the anti-falling rope can be effectively reduced, and material fatigue is reduced. And collision and abrasion between the falling protector and a tower material when high-altitude operating personnel climb up and down the tower are avoided.

The invention discloses a coal mill residual life prediction method and device, electronic equipment and a storage medium, and relates to the technical field of coal mills, and the method comprises the steps: collecting acoustic signals and operation state parameters in the operation process of a coal mill; based on the acoustic signals and the operation state parameters, frequency spectrum features reflecting the dynamic evolution process of the material fatigue state are extracted; a material fatigue damage model is constructed, the frequency spectrum features serve as input, model parameters are dynamically calibrated in combination with the actually measured material abrasion loss, and the current fatigue damage degree is calculated; and based on the current fatigue damage degree and the evolution trend thereof, predicting the residual service life of the coal mill, and outputting a residual service life prediction result including a fault type, a wear degree and the residual service life. Through the method, the technical effects of accurately quantifying the fatigue damage degree of the material, improving the prediction accuracy of the residual life of the coal mill and providing a comprehensive and reliable decision basis for equipment operation and maintenance are achieved.

A kind of cabin body life monitoring method of hard high pressure oxygen cabin, comprising the following steps: step one, elastic resistance wire is arranged on the surface of the cabin body of hard high pressure oxygen cabin, and the normal pressure state of hard high pressure oxygen cabin is identified by pressure sensor, and initial resistance value under normal pressure state is monitored and recorded, and is recorded as data A;Step two, by pressure sensor identification pressurization state, monitor and record the deformation resistance value after pressurization, and is recorded as data B;Step three, reduce pressure to recover normal pressure state, and the normal pressure state is identified by pressure sensor, and resistance recovery data is monitored and recorded again, and is recorded as data C;Step four, the deviation amount of data A and C is compared by signal processing circuit, if exceed preset threshold, then determine that plastic deformation occurs to the service life of cabin body, and safety warning is triggered simultaneously;This life monitoring method can monitor the material fatigue of cabin body in real time, and can determine the plastic deformation of cabin body and trigger safety warning, timely guarantee the life safety of operator and patient in cabin.

The invention relates to the technical field of large rotating mechanical structure dynamic characteristic online monitoring, and discloses a deep voiceprint-based fan blade material fatigue online evaluation system, which comprises the following steps of: synchronously acquiring the active power of a generator and a structure vibration signal by using the operation data flow of a unit; before operation, checking a data segment according to an SCADA event log so as to eliminate a power grid disturbance working condition; according to the method, a stable dynamic characteristic observation mode is established in an environment which cannot be measured by a random excitation source by utilizing two signals generated by the operation of a unit and constructing the transfer functions, so that the dynamic characteristics of the vibration source can be observed, and the dynamic characteristics of the vibration source can be observed. And long-term trend monitoring of a core structure parameter, namely the overall rigidity of the blade, is free from dependence on an external known excitation source, so that the dynamic balance state of the structure is evaluated under a continuous operation working condition.

The utility model belongs to the technical field of metal material fatigue tests, and particularly relates to a testing device for diaphragm compressor research and development, which comprises a support and a testing assembly, the support is a rectangular frame-shaped support, clamping assemblies are arranged in the middle of the inner side of a left frame and the middle of the inner side of a right frame of the support, and the testing assembly comprises a hydraulic cylinder and a testing mold. The fixed end of the hydraulic cylinder is connected with the inner side of an upper side frame of the support, the telescopic end of the hydraulic cylinder is connected with the upper side of the test mold, the test mold comprises an upper mold, a lower mold and a connecting plate, and the connecting plate is fixedly connected with the rear sides of the upper mold and the lower mold. And a periodic load test is carried out, and the stress state of the compressor in actual service is simulated to the greatest extent, so that the data of the symmetric bending fatigue test of the metal diaphragm is true and credible.

The application discloses a kind of non-saturated solidified soil fatigue cracking damage prediction methods based on energy-mechanics method.The application introduces the effective stress formula proposed by Lytton and gives the solution method of relevant parameters in combination with energy-mechanics method, obtains the damage density evolution trend of non-saturated solidified soil material, finally based on the theory of fracture mechanics and continuous damage mechanics, on the basis of Paris equation, introduce damage density function, and based on dissipation strain energy DSE, the expression form of J integral is obtained, so as to establish the damage evolution prediction model capable of characterizing the multi-crack cracking process.The application solves the problem that the previous solidified soil fatigue cracking model cannot effectively reflect the influence of unsaturated characteristics on soil material cracking, and the model is based on the basis of mechanics theory, can better predict the multi-crack fatigue cracking damage evolution process from the mechanism level of non-saturated solidified soil material fatigue cracking, and provides basis and guidance for the design of solidified soil material and solidified soil road structure.

The invention relates to the technical field of manipulator hinges, and discloses a multi-degree-of-freedom bionic joint hinge of an intelligent robot, the multi-degree-of-freedom bionic joint hinge comprises a hinge lug plate and a connecting plate, a buffer part is arranged between the hinge lug plate and the connecting plate, the buffer part is arranged on the connecting plate, a compensation part is arranged on the buffer part, and the compensation part is arranged on the hinge lug plate. A protection part is installed on the compensation part, a damping part is installed on the hinge lug plate, a bionic part is further installed on the hinge lug plate, the buffer part comprises a positioning disc, the positioning disc is fixedly connected to the connecting plate, a positioning rod is connected to the positioning disc in a surrounding mode, a buffer spring and a flange plate are arranged on the positioning rod, and the flange plate is fixedly connected to the hinge lug plate. Positioning holes are formed in the flange plate in a surrounding mode, the buffering part, the compensation part, the protection part and the damping part are adopted to form a four-stage buffering mechanism, instantaneous impact loads are greatly weakened, local stress concentration is avoided, material fatigue cracks are effectively reduced, and compared with a traditional rigid hinge, multi-stage buffering unloading is achieved, and the service life is prolonged.

The application discloses a kind of TC11 forging titanium alloy fatigue performance optimization method, belong to metal material fatigue performance optimization technical field.The method is to the forging state TC11 titanium alloy is carried out two-phase zone solid solution aging or double annealing heat treatment to improve fatigue strength.The two-phase zone solid solution aging heat treatment: first at temperature T1 or T2 processing 1h, water quenching (WQ);Again at 530 DEG C processing 6h, air cooling (AC);The two-phase zone double annealing heat treatment: first at temperature T3 or T4 processing 1h, AC;Again at 530 DEG C processing 6h, AC;T1=T3=960-1000 DEG C, T2=T4=850-930 DEG C.The application eliminates the life two-stage differentiation phenomenon in the fatigue process of TC11 forging titanium alloy by simple heat treatment process, greatly improves fatigue strength, provides direction for other same type titanium alloy fatigue performance optimization, and it is of great significance to engineering application of TC11 titanium alloy.