5049 results about "Impact" patented technology

The invention discloses a tumble detection method, wearable equipment and a storage medium, relates to the technical field of tumble detection, and discloses a tumble detection method applied to the wearable equipment, the wearable equipment comprises an acceleration sensor and at least one other sensor except the acceleration sensor, the tumble detection method comprises the following steps: acquiring acceleration data acquired by an acceleration sensor based on a time sequence; if the acceleration data accord with the free falling acceleration performance in the first time period and accord with the impact rebound acceleration performance in the second time period, it is judged that a falling impact event is detected; in response to the falling impact event, obtaining a falling detection result determined based on detection data collected by other sensors; and if the tumble detection result is that the tumble event exists, triggering a tumble event response process. On the basis, when falling impact is detected, detection and identification are carried out based on other sensor parameters, so that the falling detection accuracy of impact caused by falling is improved.

A power tool comprises a housing, a motor assembly and an impact assembly configured to be driven by the motor assembly. The impact assembly comprises a hammer defining a hammer chamber therein and an anvil at least partially disposed in the hammer chamber and configured to rotationally drive an output shaft. The anvil comprises a body portion, an anvil chamber defined therein, and a reciprocating member configured to selectively move radially outwardly relative to the body portion to be selectively impacted by an impact member of the hammer so that the hammer selectively imparts rotational movement to the anvil. The anvil includes an active valve configured to control discharge of fluid from an anvil chamber to the hammer chamber. The active value variably opens based on variance of one or more physical characteristics of the fluid (e.g., at least one of volume, temperature, pressure, or viscosity of the fluid).

The invention discloses a modularized replaceable self-resetting energy consumption type bridge pier anti-collision system, and belongs to the technical field of bridge engineering structure safety. The system includes an annular rubber pad, an annularly disposed damper module, and a shape memory alloy (SMA) tow. The damper module comprises a cylinder body, high-viscosity fluid, a reset spring, a piston and a force transmission plate. The cylinder body is fixed to the pier in a surrounding mode through bolts and rubber pads, the inner wall of the cylinder body is connected with the piston through a reset spring, the piston rod end is hinged to the force transmission plates, and the SMA wire bundles are connected with the force transmission plates. When an external impact load acts on the force transmission plate, the fluid damper provides viscous energy consumption, and the SMA wire bundle, the spring and the rubber pad provide deformation energy consumption; after the collision is finished, the system can be reset to the initial position under the synergistic effect of the SMA wire bundle, the spring and the rubber pad. By means of the modular design, efficient energy consumption and self-resetting can be achieved; and meanwhile, a single damper can be quickly replaced after being damaged, so that the maintenance efficiency and the system recoverability are greatly improved.

The application discloses a transfer box for precise positioning long rod, and relates to the technical field of transfer equipment, and aims to solve the technical problems that the existing loading and unloading box can fix the rod body, lacks reinforcement and protection for rod bodies with different length and width sizes, the rod body is easily damaged by bumping and impact during transportation, and the loading and unloading is complicated, and the intelligent degree of the mechanical arm is high, and the application comprises a box body mechanism and a protection mechanism, and the inner wall of the box body mechanism is connected with the protection mechanism. The application can complete the installation of the long rod through simple pushing and pulling steps, and after the installation is completed, the device can automatically adapt to the height of the long rod, so that the collision during transportation hardly affects the position of the long rod, the sliding of the long rod in the device is avoided, the protection effect of the device on the long rod is improved, meanwhile, the simple installation steps reduce the demand for the corresponding equipment when the device is used, and the operation difficulty and cost of the entire assembly system are reduced.

Provided are a planning and control method for a legged robot, an apparatus, a robot, and a storage medium. The method includes: determining, based on the movement state and the swing parameter of each leg at the next moment, a foot-end reference state of each leg, and planning, based on a foot-end dynamic model and a discrete collision model, an impact-aware swing leg trajectory for a leg that starts to swing at the next moment; and performing, based on the movement state, the reference state sequence, and the foot-end reference state, whole-body control on the legged robot, and performing, based on a whole-body dynamic model and the discrete collision model, impact-aware whole-body control for a leg that is a supporting leg in planning but does not touch the ground.

The invention provides a tool applied to the field of petroleum drilling, and particularly relates to an underground non-circular gear intelligent impact tool which comprises a power module, an axial impact module and a circumferential impact module, the power module enables drilling fluid to impact a turbine in a directional mode through a drainage disc, hydraulic energy is converted into mechanical energy, and the mechanical energy is transmitted to the axial impact module. The power is transmitted to the axial impact module and the circumferential impact module, the axial impact module lifts a rack punch hammer to compress a spring through meshing of an incomplete gear and the rack punch hammer, and when the incomplete gear is disengaged from the rack punch hammer, the spring releases energy to generate axial impact downwards. The circumferential impact module is composed of two groups of incomplete gears and racks which are arranged in an up-down 90-degree staggered mode, the rack punch hammer compresses a spring through meshing of the incomplete gears and the rack punch hammer, and the spring is released to generate circumferential impact when the incomplete gears and the rack punch hammer are disengaged. Periodic impact can be achieved, the mechanical rock breaking efficiency is effectively improved, and the stick-slip phenomenon at the drill bit is reduced.

The invention discloses a semitrailer frame and a loading and unloading method thereof, and relates to the technical field of semitrailers, the semitrailer frame comprises a longitudinal beam frame, a plurality of cross beams are fixedly welded in the longitudinal beam frame and on the front side and the rear side of the longitudinal beam frame, a traction pin mechanism is arranged at the bottom of the longitudinal beam frame, and a plurality of first connecting holes are formed in the tops of the longitudinal beam frame and the cross beams; the panel mechanism comprises a connecting panel and a bearing panel, a plurality of first mounting grooves are formed in the connecting panel, first bolts are arranged in the first mounting grooves in a penetrating and threaded mode, the first bolts are in threaded connection with the first connecting holes, and the bottom of the connecting panel is attached to the top of the longitudinal beam frame and the top of the cross beam. Inertial impact force generated by the full-load carriage during emergency braking can be effectively buffered, so that a connecting and fixing mechanism between the carriage and the bearing panel and a frame are effectively prevented from being damaged by large inertial impact force, goods can be effectively prevented from being damaged by the large inertial impact force, and the transportation loss of the goods is reduced.

The invention provides a high-speed submerging jet flow and mechanical shock synergistic ice damage test method. The method comprises the following test steps: S1, arranging a data acquisition system; s2, initializing working conditions; s3, preparing an ice body sample; s4, prefabricating ice body damage by high-pressure water jet; s5, a servo electric cylinder drives a mechanical structure to impact ice damage; s6, data acquisition; and S7, data processing. According to the invention, the force sensor, the laser displacement sensor and the high-speed camera synchronously collect the load, deformation and image information of ice damage caused by impact of a mechanical structure by means of the servo electric cylinder under the jet-assisted effect, so that accurate control and synchronous measurement of submerged jet and mechanical cooperative damage are realized; the impact of different mechanical structures at different speeds on the ice damage load is avoided.

The utility model belongs to the technical field of automatic transportation equipment, and particularly relates to an elbow arm type heavy load driving wheel device which comprises a disc bearing, a mounting base plate, a fixed arm, an elbow arm, a hinge shaft A, a hinge shaft B, a hinge shaft C, a hydraulic cylinder, a steering motor, a transmission gear, a driving wheel mounting frame and a driving wheel. According to the elbow arm type heavy load driving wheel device, the functions of bearing, lifting, driving and steering can be integrated in the same module, so that the dependence of the interior of a vehicle body on an extra steering mechanism and an extra lifting mechanism is reduced, and the compactness and the space utilization rate of the whole vehicle structure are improved. By adopting the elbow arm type lifting structure, the wheel set forms an arc-shaped motion trail in the lifting process, and compared with a traditional linear guide rail type lifting mode, loads and impact force can be more effectively dispersed, the local stress concentration phenomenon is reduced, and the occurrence probability of the problems of guide rail abrasion, clamping stagnation and the like is reduced; and the long-term stability and reliability of the structure under the heavy load working condition are improved.

A subframe mount of a front subframe comprising a vehicle frame. The subframe mount comprises a main body configured to receive a securing feature of a frame body of the vehicle frame. The subframe mount also comprises an open-ended slot configured to enable translation of the securing feature independent of the subframe mount in response to an impact event.

The invention relates to a composite percussion drilling speed increasing tool, and belongs to the technical field of drilling tools. The reciprocating hammering unit comprises a hammer body and an impact hammer, the hammer body is axially and slidably connected into the sleeve, the impact hammer is rotatably connected into the hammer body, a reversing sleeve is rotatably connected into the impact hammer, a reversing cabin is arranged on the reversing sleeve, and a reversing runner hole is formed in the hammer body; the flow channel switch unit comprises a baffle ring arranged on the surface of the hammer body and a transmission mechanism connected between the sleeve and the baffle ring, and the transmission mechanism is used for converting axial motion of the baffle ring into rotary motion so as to open or close the reversing flow channel hole. When the drilling tool is lifted, the axial movement of the baffle ring can be converted into rotary movement, so that the baffle ring rotates relative to the hammer body while axially displacing along with the hammer body, a reversing flow channel hole is shielded, and high-pressure drilling fluid cannot flow into a reversing cabin, so that high-frequency composite impact is stopped, vibration and abrasion caused by idling are avoided, and the service life of the drilling tool is prolonged. And the service life and the safety of the tool are improved.

The invention discloses an impact resistance test device and method for an energy-absorbing anti-collision structural member, and relates to the technical field of automobile anti-collision members. Comprising a support, a drop hammer mechanism arranged on the support and capable of sliding in the Z direction, a clamp arranged at the bottom of the support and used for clamping a test piece, and a force value sensor arranged below the clamp and used for collecting impact force borne by the test piece. The first displacement detection component is arranged above the test piece and can be used for measuring the concave depth of the upper surface of the test piece, the second displacement detection component is arranged between the test piece and the force value sensor and is used for measuring the convex height of the lower surface of the test piece, and the first displacement detection component can move in the X direction and the Y direction. The first displacement detection component can measure the concave depth of the upper surface of the sample in a multi-point mode, the second displacement detection component can measure the protruding height of the lower surface of the sample, it is ensured that the initial error can be accurately deducted from the displacement variation after impact, and the measurement precision of the upper and lower surface deformation of the sample is improved.

The invention relates to the technical field of vehicle dynamic performance testing, and particularly discloses a method and a system for testing vehicle tracking recovery capability based on transverse impact. The method comprises the following steps: acquiring position information of a tested vehicle in real time in a tracking driving process of the tested vehicle on a test road; if the tested vehicle arrives at the impact triggering area, controlling a road simulation plate laid on the test road to move transversely so as to simulate an impact working condition; when a tested vehicle arrives at an impact triggering area, rear wheels of the tested vehicle are located on the road simulation board. In the transverse movement process of the road simulation board, the instantaneous yaw angle of the tested vehicle is obtained; and responding to the situation that the instantaneous yaw angle is larger than a first set threshold value for the first time, and testing the tracking recovery capability of the vehicle according to the driving performance of the tested vehicle under the control of the electronic stability system. According to the method, the technical bottlenecks of uncontrollable interference and non-quantitative data of a traditional control test are overcome, and repeatable test, controllable parameters and quantitative evaluation are realized.

The invention relates to the technical field of bearings, and provides an anti-impact hydrostatic bearing air supply system which comprises a first air supply subsystem and a second air supply subsystem, the first air supply subsystem comprises a first pipeline, a first check valve and a reaction mechanism, the reaction mechanism is connected with the first pipeline, and the first check valve is arranged on the first pipeline; the second gas supply subsystem is connected with the first pipeline and is used for being connected with the hydrostatic bearing; the reaction mechanism can generate chemical reaction when the hydrostatic bearing bears strong external impact, and water vapor is generated and enters the hydrostatic bearing. According to the anti-impact air supply system for the hydrostatic bearing, when the hydrostatic bearing bears severe impact, chemical reaction occurs in the reaction mechanism, a large amount of high-temperature and high-pressure water vapor is generated, the water vapor pushes the first check valve to be opened so as to enter the hydrostatic bearing, the bearing capacity of the hydrostatic bearing is improved, and collision between the rotor and the hydrostatic bearing is avoided.

The invention relates to the technical field of lifting equipment, and discloses a chassis lifting mechanism which comprises a gear motor, a fixed frame, a lifting frame, a lifting assembly and a self-lubricating assembly, the gear motor is installed on the lifting frame, and the fixed frame is slidably connected to the lifting frame; the lifting assembly comprises a transmission part, and the transmission part is connected with an output shaft of the gear motor. According to the chassis lifting mechanism, through the arranged synchronous transmission lead screws on the two sides, synchronous transmission can be conducted through the two lead screws, stable lifting is achieved, meanwhile, pressure division can be conducted on a bearing piece, and the problems that blocking is generated due to transmission of a single lead screw and stability is poor due to bearing lifting of the single lead screw are solved; and the motor of the lifting mechanism is not influenced by impact force and overturning force, so that the overall impact resistance is improved.

The invention provides a lunar lava tube rock wall mechanical parameter testing device and method based on a rebound principle, and relates to the technical field of lunar rock-soil mechanics detection.The device comprises an ejection module, a driving module, an energy storage locking module, a control module and an impact measuring module which are arranged in a protective shell; the ejection module comprises an ejection body of a hollow cylinder structure, the ejection body is arranged in the center of the interior of the protective shell, the upper end face of the ejection body is connected with a clamping pin, a pair of lug stoppers are arranged on the outer walls of the lower portions of the two sides of the ejection body, and the lug stoppers are reset through first springs. The lower end face of the elastic striking body is connected with the upper end of the extension spring, the lower end of the extension spring is connected with the upper end of the striking end support, and the lower end face of the striking end support is connected with the upper end face of the striking rod. The problems that a traditional Schmidt hammer is poor in adaptability in the lunar environment, low in automation degree, ineffective in parameter measurement basis and the like are solved.

Trunk recess (4) with a circumferential wall (7) and a floor (8) to define a trunk recess interior volume (9) which can be used as a trunk, wherein the trunk recess (4) has fastening means (10) to be able to secure the trunk recess (4) in a motor vehicle (1), wherein the trunk recess (4) has at least one means (11) for absorbing energy by deformation in the event of an impact, characterized in that the circumferential wall (7) has opposing side walls (19) and opposing transverse walls (20), wherein means (11) for absorbing energy by deformation are integrated into the opposing side walls (19), wherein one means (11) for absorbing energy is designed as a type of bellows (21) which is inserted into or connected to the two opposing side walls (19).

The utility model relates to the technical field of buffering protection, and discloses a spring hydraulic buffering protection device which comprises a damping piston cylinder and a piston rod, the damping piston cylinder is matched with the piston rod, a collided head is installed at the top of the piston rod, an elastic buffering cap is installed at the top of the collided head, a thrust spring is sleeved outside the piston rod, and the elastic buffering cap is sleeved outside the piston rod. The two ends of the thrust spring are fixed to the top of the damping piston barrel and the bottom of the elastic buffer cap respectively, the elastic buffer cap is made of high-elasticity materials and can effectively absorb impact force, and the bottom of the piston rod penetrates into the damping piston barrel in a sealed mode. By utilizing the damping characteristic of liquid flow and the elastic deformation of the spring, double buffering on impact force is realized, the stability and durability of the device are obviously improved, the vibration frequency of equipment in high-speed operation is effectively reduced, and the service life of the equipment is prolonged.

The invention discloses an electric fascia gun self-adaptive to mechanical strength, and belongs to the technical field of electric fascia guns, the electric fascia gun self-adaptive to mechanical strength comprises a main body mechanism used for relaxing fascia of a patient part or a part needing to be relaxed, and the main body mechanism is provided with a self-adjusting mechanism for adjusting huge strength according to different pressing strength. The self-adjusting mechanism comprises a fixing cylinder fixedly installed in the fascia gun shell. By means of a mechanical self-adjusting mechanism, the pressing force of the hand of a user is directly converted into the impact strength of the operation tail end in real time, when the user presses down forcibly, the displacement of the outer sliding sleeve pushes the sliding column to move outwards without delay through the inclined groove plate and the lifting conical head, the eccentric distance of a transmission system is increased, and the transmission efficiency is improved. The stroke and the impact force of the operation tail end are linearly increased, accurate force feedback can be provided according to different body parts and muscle states, the poor relaxation effect caused by insufficient force is avoided, and damage possibly caused by excessive impact in a sensitive area is also prevented.

The invention provides an impeller high-temperature over-rotation test device. The impeller high-temperature over-rotation test device comprises a long shaft, an impeller, a press-fitting assembly, a buffer assembly and a fixing piece. The long shaft comprises a first shaft body and a second shaft body which are concentric and different in diameter, the impeller is sleeved on the first shaft body, and press-fitting parts are formed at two ends. The first press-fitting assembly and the second press-fitting assembly are pressed on the press-fitting parts on the two sides of the impeller correspondingly, relative rotation is prevented through the rectangular keys, the double press-fitting assemblies are symmetrically arranged to balance axial force, and rotation stability is improved. The left / right clamping sleeve is matched with the conical surface of the left / right taper sleeve, and a tensioning wire groove is formed to adapt to impellers of different sizes and compensate size changes. The buffering assemblies are arranged in a mirror symmetry mode, the horn mouth design optimizes stress distribution, long-axis thermal expansion is absorbed, and vibration impact is resisted. The fixing piece provides axial fixing force, and the axial rigidity of the system is optimized. The device can ensure the reliable positioning of the impeller at high temperature and ultrahigh speed, and improves the test precision and reliability.

A method for controlling the impact between the gripping fingers of a robotic gripper and an object to be gripped comprises the steps of : a) setting a set-point value of the gripper closing speed; b) controlling the movement of the gripper at the closing speed set-point value; c1) calculating a speed datum representative of the closing speed; c2) comparing said speed datum with a speed threshold value; d1) calculating a datum for the current absorbed by the gripper; d2) comparing said absorbed current datum with a pre- established absorbed current threshold value; e) determining whether the gripping fingers have impacted upon the object when the speed datum is lower than the speed threshold value or when the absorbed current value is above the absorbed current threshold value; f) activating a braking device as soon as an impact is detected.

The invention provides a dynamic strength test system and method for a soft rock biaxial Hopins compression bar, and the system comprises an axial impact loading unit which is used for generating an axial impact load; the confining pressure loading unit is used for applying radial confining pressure to the sample; the high-pressure fluid injection unit is used for injecting high-pressure fluid into the sample and simulating different internal water pressure and water saturation conditions; the data acquisition unit is used for recording impact load, confining pressure, internal water pressure and sample dynamic response data in real time; the control system is used for coordinately controlling the axial impact speed, the confining pressure and the internal water pressure value; by integrating the axial impact loading unit, the hydraulic servo confining pressure loading unit and the high-pressure fluid injection unit, a test platform capable of truly simulating a complex stress-seepage coupling environment where the deep soft rock is located is formed; therefore, the synchronous, independent and accurate control of axial dynamic load, constant or dynamic confining pressure and internal pore water pressure is realized.

The utility model provides a base damping device of a vacuum vibration press, which belongs to the technical field of damping and comprises a moving table and a damping component arranged at the top of the outer wall of the moving table, and the damping component comprises a damping seat, an auxiliary frame, a mounting frame, a damper, an angle frame, a limiting frame, a resistance reducing wheel, a supporting seat, a buffer spring and a limiting frame. The auxiliary frame is fixedly arranged at the corner of the bottom of the outer wall of the damping seat, and the limiting frame is embedded in the inner wall of the auxiliary frame. The damping assembly and a buffer spring form a rigid-flexible damping structure through a damper, high-frequency vibration can be absorbed at the same time, rapid energy consumption through damping can be achieved, low-frequency vibration can be elastically buffered through the spring, dynamic adjustment is achieved through a resistance reduction wheel, the resistance reduction wheel rolls in a limiting frame, impact force is dynamically dispersed in cooperation with a supporting base, stress concentration is avoided, and the service life of the damping assembly is prolonged. The rolling design of the resistance reduction wheel converts linear vibration into rotating kinetic energy, and direct damage of transverse impact to the structure is reduced.

The invention discloses an anti-impact single-rod shear thickening damper, and relates to the field of dampers. The piston is connected in the cylinder barrel in a sliding manner and is provided with a plurality of damping holes; one end of the piston rod is connected with the piston, and the other end of the piston rod penetrates through the cylinder barrel and extends out of the cylinder barrel; the baffle disc is rotationally connected to the piston and used for opening and closing the damping holes, and communicating holes which are used for communicating the damping holes and have the same number as the damping holes are formed in the baffle disc. According to the damper, the baffle disc is rotated by an operator to shield or open the damping hole, so that the flowing sectional area of damping liquid is changed, the damping force of the damping liquid is changed, and the damping requirements of the damper under different load conditions are met.

The invention belongs to the technical field of aero-engines, and particularly relates to an array type energy absorption target plate. Comprising a support frame; the multiple knife-shaped columns are fixed to the supporting frame at intervals, and cutting edges of the knife-shaped columns face the throwing direction of an impact object; the energy absorption turning plates are hung between the adjacent knife-shaped columns in a turnover mode through rotating shafts and arranged into a multi-layer array in the vertical direction, and the energy absorption turning plates are configured to turn over when being impacted so as to allow an impacted object to pass through and absorb kinetic energy of the impacted object; the inclined back plate is obliquely arranged on the side, opposite to an impact object, of the array type energy absorption turning plate, and the projectile body collecting box is located below the inclined back plate and used for collecting the impact object penetrating through the energy absorption turning plate array.

The utility model relates to the technical field of expansion joints, in particular to a deformed steel-elastic body combined seamless expansion joint structure and a bridge, the expansion joint structure increases the coupling action area and the coupling force of an elastic body and deformed steel through the combined structural design of a deformed plate, the deformed steel, the elastic body and a covering layer, so that the expansion joint structure is more flexible and reliable. The phenomenon that weak connecting surfaces are easy to debond too early is improved, the service life of the structure is prolonged, and the durability of the structure is improved; the deformation direction of the elastic body is controllable, the road surface is prevented from bulging, and the driving safety problems such as bumping are completely eradicated; the covering layer in the expansion joint area can cooperate with the elastic material for tension and compression deformation, meanwhile, it is guaranteed that the rigidity transition from the asphalt concrete layer in the non-expansion area to the covering layer is smooth, and the vicious circle that the bumping phenomenon is caused by the unsmooth road surface, and the local damage of the road surface is more serious due to the impact load under the bumping phenomenon is prevented.

The utility model relates to the technical field of constructional engineering, and discloses a reinforced concrete structure impact-resistant protection device which comprises a main body, supporting columns are arranged on the two sides of the main body, a fixing plate is fixedly installed in the main body, a buffering plate is arranged on the outer wall of the main body, a bearing plate is fixedly installed at the bottom of the main body, and an adjusting frame is arranged on the inner wall of the main body. Limiting blocks are clamped in the adjusting frames, and inclined supporting rods are in threaded connection with the interiors of the limiting blocks. According to the impact-resistant protection device of the reinforced concrete structure, through cooperative arrangement of the main body, the supporting columns, the fixing plate, the buffer plate and the bearing plate, impact force and external force from different directions can be effectively resisted, it is ensured that the whole protection device is not prone to inclining or collapsing when being impacted, and the fixing plate is arranged in the main body; the shape and structural integrity of the main body can be better kept when the main body bears impact force, the main body is prevented from deforming due to external force, and therefore the reliability and durability of the whole protection device are improved.

According to the multi-connecting-rod type automobile suspension device, through cooperative cooperation of a multi-connecting-rod assembly, a damping support, an axle and a damping assembly, wheel vertical vibration caused by the road surface can be efficiently converted into a multi-connecting-rod swing vector, and self-adaptive damping adjustment is achieved by means of a damper and air cylinder composite structure in the damping assembly; impact can be effectively buffered in the compression stroke, springback can be restrained in the stretching stroke, it is ensured that tires continuously grip the ground, meanwhile, sound insulation materials are additionally arranged at the ends of the dampers, running noise is effectively reduced, impact energy in the vertical direction is further absorbed by integrating multiple sets of spiral springs through a drive axle, rigid transmission to an automobile main frame is reduced, and the service life of the automobile is prolonged. The whole structure is high in rigidity and reasonable in spatial arrangement, and has good vibration absorption performance, reliability and comfort, and the driving smoothness, the control stability and the noise vibration comfort of a vehicle are remarkably improved.

The invention discloses a vehicle damping module, and relates to the technical field of vehicle damping, the vehicle damping module comprises a road condition sensing unit, the output end of the road condition sensing unit is in communication connection with a prediction control unit, the output end of the prediction control unit is electrically connected with an actuator assembly, and the prediction control unit is internally provided with a control algorithm. The control algorithm is based on the real-time speed of the vehicle, the characteristic parameters and a pre-stored vehicle dynamics model. According to the application, the road condition sensing unit fuses multi-source information and accurately recognizes and quantifies front road condition features, and the prediction control unit accurately calculates the time point when the wheels make contact with an obstacle based on a dynamic model and the real-time vehicle speed, so that precious pre-adjustment time is reserved for an execution mechanism; the damping coefficient of the electromagnetic shock absorber and the internal pressure intensity of the self-adaptive stiffness spring assembly can be adjusted to the optimal state before impact occurs, so that the impact load generated when the electromagnetic shock absorber passes through pits and deceleration strips is greatly smoothed, and the riding comfort is remarkably improved.

The invention relates to the technical field of impact resistance evaluation of underwater vehicles, in particular to an impact resistance evaluation method for internal equipment of an underwater vehicle. The method comprises the following steps: setting a flow field size of an underwater test environment and carrying out flow field modeling; based on the modeled flow field, performing numerical simulation on the dynamic response of the underwater vehicle under the impact load, obtaining the dynamic response value of internal equipment in each key cabin section of the underwater vehicle, and performing low-pass filtering processing; fourier transform is carried out on the dynamic response value of the internal equipment in each key cabin section after low-pass filtering processing, and an impact spectrum of the underwater vehicle is constructed; and converting the impact spectrum into a design spectrum for impact resistance evaluation, and comparing the design spectrum with an impact resistance standard system to judge the impact resistance of the internal equipment of the underwater vehicle. According to the method, the influence of the impact environment on the underwater vehicle can be intuitively and accurately quantified, so that the structural design of an internal cabin section of the vehicle is helped to be optimized.