24 results about "Crashworthiness" patented technology

The utility model relates to the technical field of new energy vehicles, in particular to a frame for a new energy tricycle. The chassis comprises a main body support, a hub support, a frame support and a protective support, the main body support comprises transverse rods, longitudinal rods and reinforcing rods, the transverse rods and the longitudinal rods are mutually spliced to form a chassis main body frame, and the reinforcing rods are fixedly supported between the transverse rods and the longitudinal rods. The main body support forms a firm chassis main body frame through splicing of the transverse rods and the longitudinal rods, the reinforcing rods provide additional support between the transverse rods and the longitudinal rods, the rigidity of the whole structure is enhanced, the frame support is arranged on the upper side of the main body support, and the weight and load of the upper portion of a vehicle body can be effectively dispersed and borne; the protection support is installed on the outer side face and in the vehicle frame support, an additional protection layer is provided, and the reasonable layout of the protection support is beneficial for improving the crashworthiness and safety of the vehicle.

The utility model discloses a double-sided co-extrusion anti-collision large plate with strong anti-collision performance. The double-sided co-extrusion anti-collision large plate comprises an anti-collision large plate, connecting clamping grooves are formed in the two sides of the connecting base, and the connecting base is arranged on the back face of the large anti-collision plate so that the large anti-collision plate can be fixed; the positioning seat is provided with a positioning groove, and the positioning groove is used for positioning the connecting seat; and the buffering and positioning assembly is used for reducing impact force, and the buffering and positioning assembly is arranged on the connecting base. The anti-collision device has the advantages that impact force borne by the large anti-collision plate is buffered through the buffering and positioning assembly, the impact force borne by the large anti-collision plate is reduced, meanwhile, the wall can be prevented from being collided, the large anti-collision plate and the wall are prevented from being damaged, the service life is prolonged, the large anti-collision plate is convenient to disassemble and assemble through the buffering and positioning assembly, and the anti-collision device is convenient to use. And the working efficiency is improved.

The utility model discloses a bridge combined multi-stage energy consumption buffer device which comprises a steel jacket box, a steel partition plate used for separating space is arranged in the steel jacket box, and a first-stage energy consumption structure used for first-stage buffer energy consumption and a second-stage energy consumption structure used for second-stage buffer energy consumption are arranged in the separated space respectively. The steel jacket box is arranged outside the pier through the rubber fender. The UHPC panel and the stainless steel composite steel plate are adopted, and the service life of the structure is remarkably prolonged under the complex service environment of a water area. In the aspect of collision resistance, the high-strength steel grid structure has a definite deformation mode induction mechanism, the impact force is dispersed through the UHPC panel with large rigidity, the impact force is buffered through the honeycomb with small rigidity, the impact force is transmitted to the high-strength steel grid structure through the UHPC panel and the dense honeycomb, the energy consumption efficiency is greatly improved, the force transmission path is reasonable, coverage of different collision prevention levels can be achieved, and the energy consumption is reduced. And meanwhile, the compression stroke of the energy dissipation assembly is increased, the peak impact force is reduced, and designability is good.

The utility model relates to the technical field of traffic engineering, in particular to a traffic engineering protective fence which comprises a shell, sliding grooves are formed in the same sides of the two symmetrical faces of the shell, and sliding covers are installed in the sliding grooves in a sliding mode. The force unloading assembly is installed in the shell, and the force unloading assembly is used for reducing the impact force borne by the protective fence; and the warning assembly is installed on one side of the force unloading assembly, and the warning assembly is used for warning passing vehicles. Compared with the prior art, the force unloading assembly is arranged, the vehicle impact force can be effectively unloaded, the crashworthiness is improved, and the service life is prolonged; the pressure spring ensures stable ejection of the ejection plate, so that the force unloading assembly is convenient to release; the clamping columns and the clamping grooves are flexibly matched, so that the protective fence is adjustable in layout and high in adaptability; meanwhile, the shell can be used as a temporary seat, construction is facilitated, and space is saved due to the fact that the shell is placed in a stacked mode.

The invention relates to an anti-collision device unit and a crashworthiness analysis, regulation and control method thereof.According to the anti-collision device unit, a pre-designed initial defect is arranged on a round pipe, and the initial defect is used for inducing a folded waveform to be bent in advance at a preset position and keep stable transmission when the round pipe is axially crushed; therefore, the initial peak force of axial crushing of the circular pipe is reduced, large impact load cannot be transmitted to a structure needing to be protected in the early stage of protection, the local damage risk of the structure needing to be protected is reduced, energy consumption of the circular pipe capable of adopting axial crushing can be achieved, high platform bearing capacity can be kept, meanwhile, lower initial resistance is generated, and the anti-collision performance is improved. According to the crashworthiness analysis method of the anti-collision device unit, the design efficiency can be improved, the design period can be shortened, and then the requirements of rapid design and parameterization optimization in actual engineering can be met. According to the anti-collision device unit crashworthiness regulation and control method, the crashworthiness and design efficiency of the anti-collision device unit can be improved, and therefore the defects in the prior art are overcome.

A crashworthiness energy absorption part 1 according to the present invention absorbs crash energy by undergoing axial crash when a crash load is input from the front or the rear of a vehicle body, and comprises: a cylindrical part 10 including eight surface parts 11 and having an octagonal cross-sectional shape orthogonal to an axial crash direction; and a plurality of slits 20 formed in any of the surface parts 11 in a shape extending in a direction substantially orthogonal to the axial crash direction. The plurality of slits 20 are not formed in inclined surface parts 11d corresponding to the sides of the minimum length of the octagonal shape, but instead three or more slits are formed at equal intervals along the axial crash direction in side surface parts 11c corresponding to the sides of the maximum length of the octagonal shape. The length of each slit 20 is 10% or more of the length of the side of the side surface parts 11c, and the width of each slit 20 is 1.0 times or more of the plate thickness of the side surface parts 11c.

According to the assembly type foam aluminum bridge anti-collision energy absorption device, an energy absorption cavity is defined by an outer layer aluminum plate, and an internal energy absorption structure is protected. The first rubber interlayer is arranged on the inner wall of the energy absorption cavity, the good elasticity of rubber is utilized, the buffering effect is achieved at the impact moment, and the direct influence of impact force on a follow-up structure is reduced. And the combination of the second rubber interlayer and the spring further optimizes the energy absorption effect. The springs absorb energy through stretching and retracting in the collision process, and the multiple springs arranged at intervals in the height direction can deal with collision at different positions in an omnibearing mode. The second rubber interlayer surrounds the spring, not only can assist in energy absorption, but also can prevent the spring from being damaged by direct friction with other parts, meanwhile, the second rubber interlayer is attached to the foamed aluminum layer, the integrity and the buffering effect of the structure are further enhanced, the anti-collision performance of a bridge is comprehensively improved, the bridge structure can be protected, and the service life of the bridge is prolonged. And the damage degree of vehicles and ships during collision can be reduced.

The utility model discloses a one-step molded high-strength draw-bar box, which relates to the technical field of draw-bar boxes, solves the problems of low anti-collision performance and low buffering and damping performance of the existing device, and adopts the following scheme that the whole body of a draw-bar box body is formed by integral injection molding, and anti-collision bumps A which are uniformly distributed are assembled on the front side of the draw-bar box body; according to the one-step molded high-strength draw-bar box, through the arrangement of the anti-collision convex blocks A, the anti-collision convex blocks B and the reinforcing protective plates, the integral strength of the draw-bar box formed through integral injection molding can be improved, the anti-collision performance of the draw-bar box can be improved through the anti-collision convex blocks A and the anti-collision convex blocks B, and the anti-collision performance and the strength of corners of the draw-bar box can be improved through the reinforcing protective plates; and meanwhile, through the arrangement of the buffer springs and the dampers, when the moving wheels are bumped, the buffer springs and the dampers can be used for buffering and damping the moving wheels, so that the bumping amplitude is reduced, and the stability and the safety of the device in use are improved.

The embodiment of the invention provides a training method, device and equipment for a thin-wall beam crashworthiness prediction model and a medium. The method comprises the following steps: acquiring a sample thin-wall beam grid model, acquiring simulation result data corresponding to the sample thin-wall beam grid model, and taking the simulation result data as a label value; voxelization processing is carried out on the sample thin-wall beam grid model to generate thin-wall beam voxelization features; performing dimension reduction processing on the voxelization features of the thin-wall beam to generate data features of the thin-wall beam; obtaining thin-wall beam thickness data, and fusing the thin-wall beam thickness data with the thin-wall beam data features to generate target thin-wall beam data features; and obtaining a to-be-trained thin-walled beam collision resistance prediction model, and training the thin-walled beam collision resistance prediction model according to the target thin-walled beam data features and the label values to generate a trained thin-walled beam collision resistance prediction model. Therefore, the prediction precision is improved, and the simulation and experiment time and economic cost are remarkably reduced.

The utility model relates to a kind of honeycomb aluminum door sill beam assembly for automobile, including the door sill beam body of aluminium alloy section structure, and the inner cavity of door sill beam body is provided with honeycomb aluminum structure. The honeycomb aluminum structure includes the honeycomb aluminum core extending along the length direction of door sill beam body, and the outer circumferential side of honeycomb aluminum core is provided with honeycomb baffle, and the honeycomb baffle wraps honeycomb aluminum core. The utility model structure design is simple, reasonable, by setting honeycomb aluminum structure in the inside of aluminium alloy section structure's door sill beam body, honeycomb aluminum structure has very strong compression strength and energy-absorbing effect, improves the vehicle crashworthiness, strengthens the protection of passenger cabin when automobile side collision;While honeycomb aluminum structure is lighter, greatly reduces the weight of part, reaches the purpose of automobile light weight, and simplifies manufacturing procedure, improves production efficiency, reduces tooling cost.

A rear floor assembly for a vehicle can have a structure in which a pair of longitudinal members are connected to a first transverse member and a second transverse member and both the first transverse member and the second transverse member are connected to each other through a connection reinforcement member, so that the overall skeletal structure of the rear floor assembly is capable of being strengthened, side collision performance (crashworthiness) is capable of being increased, and passenger protection performance is capable of being increased.

The invention discloses a bionic thin-walled structure crashworthiness analysis method based on finite element simulation, particularly relates to the technical field of computer-aided engineering simulation, and is used for solving the problem that the crashworthiness of a complex bionic thin-walled structure is difficult to systematically evaluate in the early stage of design in the prior art. The method comprises the following steps: establishing a three-dimensional geometric model, carrying out finite element grid division, constructing a finite element model for collision simulation, then applying a dynamic impact load to execute collision calculation, extracting node coordinate data, and converting a structure dynamic deformation process into topological characteristic evolution through persistent coherence analysis; a distance-based filtering process is adopted to generate a filtering complex sequence, a persistence graph is obtained by calculating homology group evolution, quantitative indexes, including an average life cycle and persistence entropy, representing topological feature persistence are extracted, then a performance balance graph is constructed, Pareto leading edge distribution is recognized through a non-dominated sorting algorithm in multi-objective optimization, and the performance balance graph is obtained. And the scheme screening of the collision resistance of the bionic thin-wall structure is realized.

The utility model relates to the technical field of automobile parts, and disclose a reinforced automobile bumper, the utility model discloses through setting up reinforcing mechanism, including U type crash beam, first bumper, second bumper and reinforcing rod, multiple structures cooperate with each other, can effectively disperse and absorb the collision force, significantly improved the bumper crashworthiness, and the crashworthiness is excellent, when the collision occurs, can better protect the automobile body and the safety of the people in the car, the bumper main part adopts the high -strength composite material that is made by polypropylene, glass fiber and anti -aging agent according to specific mass ratio mixes, surface spray blast -resistant armor paint coating simultaneously, not only has improved the strength and rigidity of bumper main body, still strengthened its anti -aging, impact -resistant and anti -scratch performance, effectively prolonged the service life of bumper, and the adjusting mechanism can respond to the collision of different directions according to actual demand, and the connecting mechanism is convenient to detach and maintain, reduced maintenance cost.

An automotive crashworthiness energy absorption part includes a tubular member formed by using a hat-shaped section part including a top portion and a side-wall portion; a coating part made of a material having a lower strength than the tubular member, the coating part being arranged on outer surfaces of the top portion and the side-wall portion at a portion including a corner portion configured to connect the top portion and the side-wall portion, with a gap of 0.2 mm or more and 3 mm or less from the outer surface of the top portion, the outer surface of the side-wall portion, and an outer surface of the corner portion; and a coating film of an electrodeposition paint formed in the gap.

The application provides a marine structure anti-collision performance multi-working condition iterative optimization method and device, including: establishing a finite element analysis model containing soil layer information; applying an operating period dead load to the finite element analysis model and performing static force solving to obtain an initial working condition of a ship collision load; obtaining a plurality of impact working conditions, calculating total ship collision energy and deformation control displacement; performing trial calculation on components of the finite element analysis model and setting the components as fiber beam units; calculating structure energy absorption of the plurality of impact working conditions; calculating energy ratios of the plurality of impact working conditions based on the structure energy absorption and the total ship collision energy, adjusting impact coefficients based on the energy ratios; calculating maximum displacements of the plurality of impact working conditions, calculating displacement ratios of the plurality of impact working conditions based on the maximum displacements and the deformation control displacement, adjusting diameters of rod members and wall thicknesses of the rod members based on the displacement ratios; and outputting final diameters of the rod members and wall thicknesses of the rod members. In the method, marine structure sizes can be automatically iteratively optimized, and the working efficiency of designers is improved.

The invention discloses a method for improving the anti-collision performance of a vehicle body, the tail part of the vehicle body is provided with an anti-collision device, the anti-collision device is provided with a driving unit, and the vehicle body is synchronously provided with an ultrasonic sensor, a filter, an inertial measurement unit and a distance sensor; an emitter in the ultrasonic sensor emits ultrasonic waves to the rear of the anti-collision device once every delta t seconds, after the ultrasonic waves are emitted, when the ultrasonic waves meet a rear coming vehicle, ultrasonic signals are returned, echo signals are transmitted into a receiver of the ultrasonic sensor, and the ultrasonic sensor measures and calculates the instantaneous distance between the rear coming vehicle and the anti-collision device according to the echo time; the inertia measurement unit measures and calculates the acceleration of vehicle body movement; the distance sensor measures and calculates the relative distance and the relative speed between the anti-collision device and a rear coming vehicle by continuously transmitting modulated waves; the distance sensor determines the deformation degree of the anti-collision device according to the time when the rear vehicle collides with the vehicle body and the transmission driving unit determines the time TTC when the rear vehicle collides with the vehicle body.

The utility model relates to the technical field of compressors, and discloses a sliding vane for a compressor. The compressor comprises an air cylinder and a roller, the air cylinder is provided with a sliding piece groove and a working cavity, the sliding piece is suitable for being movably arranged in the sliding piece groove, the roller is arranged in the working cavity, the sliding piece comprises a sliding piece body part and a sliding piece head part, and the sliding piece head part is arranged at the end, facing the roller, of the sliding piece body part and suitable for abutting against the roller; wherein a reinforcing piece is arranged between the slip sheet head part and the slip sheet main body part, the reinforcing piece comprises a hollow structure, and the two ends of the hollow structure abut against the slip sheet head part and the slip sheet main body part respectively. A buffering space is formed in the hollow structure of the reinforcing piece, the two ends of the hollow structure abut against the sliding piece head and the sliding piece body respectively, and the pressure borne by the sliding piece head can be effectively dispersed. Therefore, the crashworthiness of the slip sheet can be improved, and the problems of deformation, abrasion and the like of the head of the slip sheet caused by overlarge local stress are avoided or reduced. The utility model further discloses the compressor.

This application discloses a front compartment structure and a vehicle. The front compartment structure includes a crash beam, a front frame, front longitudinal beams, and front wheel arches. The crash beam is connected to the front frame, and the front end of the front longitudinal beam is connected to the front frame. The front end of the front longitudinal beam is connected to the front longitudinal beam via a first connector to form a first force transmission path. It is connected to the front frame via a second connector and a third connector to form a second force transmission path and a third force transmission path, respectively. The rear ends of the front longitudinal beam and the front wheel arches are both connected to the vehicle body. When the front compartment structure is subjected to a collision, at least part of the collision force is dispersed and transmitted to the front wheel arches through the first, second, and third force transmission paths for convergence. After convergence, the force is transmitted towards the vehicle body, which helps to disperse the load and avoid the risk of crushing and deformation of the force transmission components due to excessive concentration of collision force. This improves the crashworthiness of the front compartment structure and the overall vehicle body, thereby improving the safety of the passenger compartment and the NVH performance of the entire vehicle.

The present invention provides a rear floor assembly for a vehicle, in a structure thereof, a pair of side members are connected to a first cross member and a second cross member, and both the first cross member and the second cross member are connected to each other by a connection reinforcement, thereby being able to reinforce an overall skeleton structure of the rear floor assembly, improve side collision performance (crashworthiness) and passenger protection performance.

The invention designs a front bumper intelligent system for decoupling crashworthiness and pedestrian protection performance, which comprises an intelligent monitoring device, an energy absorption module and an intelligent actuator, and is characterized in that the intelligent monitoring device is composed of a laser radar, a binocular camera, a visual algorithm system and a sensor; the energy absorption module is composed of a front bumper skin, a recoverable empty ring-pull can, a ring-pull can fixing plate, a negative poisson ratio auxetic structure, a sleeve and a front anti-collision cross beam, and the intelligent actuator is composed of a double-end stud, a transmission mechanism and a motor. The front bumper intelligent system is oriented to the green, environment-friendly and safe design concepts, waste of empty zip-top cans is recycled, the effects of light weight, energy conservation and emission reduction are achieved, more importantly, decoupling of crashworthiness and pedestrian protection performance is achieved, and the energy-saving and emission-reducing effects are achieved. And the requirements of low-risk damage of high-value elements in low-speed collision of the automobile and high pedestrian protection performance in pedestrian-automobile collision are met.

The embodiment of the present application relates to a kind of vehicle body assembly and vehicle, belong to the field of automobile technology, vehicle body assembly includes vehicle body main body, front pillar, front wallboard, reinforcing crossbeam and transition piece.Front pillar includes front pillar outer plate, front pillar lower inner plate and support, the front pillar outer plate is connected with the vehicle body main body, the front pillar lower inner plate is located in the inner side of the front pillar outer plate, the support is located in the space between the front pillar outer plate and the front pillar lower inner plate, the support is connected with the front pillar outer plate.Front wallboard and the vehicle body main body and the front pillar are enclosed into compartment and the engine compartment located in the front side of the compartment.Reinforcing crossbeam is installed to the side of the front wallboard towards the compartment.Transition piece is installed to the reinforcing crossbeam and the front pillar lower inner plate respectively.The vehicle body assembly and vehicle of the embodiment of the present application improve the crashworthiness of vehicle body assembly.

The utility model discloses a traffic signal lamp with a protection mechanism, which relates to the technical field of traffic signal lamp equipment, and comprises a bottom plate, the upper end face of the bottom plate is fixedly connected with an outer frame, each outer side wall of the outer frame is fixedly connected with a connecting plate through a connecting rod, and each corner of the other end of the connecting plate is fixedly connected with a first damping spring. The other ends of the multiple sets of first damping springs are fixedly connected with outer side anti-collision plates, protection mechanisms are arranged in the outer side anti-collision plates, a supporting rod is fixedly connected to the dead center of the upper end face of the bottom plate, a traffic signal lamp body is fixedly connected to the upper end of the supporting rod, and an adjusting mechanism is arranged on the lower end face of the bottom plate. When the traffic signal lamp is used, external force is received and transmitted to the inner side anti-collision plate, so that multiple protection is formed, the damage risk of the traffic signal lamp is reduced, the external force can be effectively dispersed through the balls and the mounting base of the inner side anti-collision plate, instantaneous impact caused by collision is reduced through friction force, and the collision resistance of the whole structure is enhanced.

The utility model is suitable for the technical field of automobile manufacturing, and provides a vehicle which comprises a vehicle body frame, and the vehicle body frame comprises a frame beam main body and a reinforcing structure. The frame beam main body comprises a continuous fiber composite material, and a cavity is formed in the frame beam main body; and the reinforcing structure is at least partially arranged in the cavity and is connected with the frame beam main body. The frame beam main body is made of the continuous fiber composite material, and the continuous fiber composite material has the characteristic of light weight, so that the weight reduction of the vehicle body frame is facilitated. The continuous fiber composite material has high strength and rigidity, and the collision resistance of the vehicle body frame can be improved. The cavity is formed in the frame beam body, on one hand, the cavity can serve as an energy absorption area to effectively absorb and disperse impact energy, and the cavity can further provide an installation space for the reinforcing structure. And the cavity is beneficial to the lightweight design of the vehicle. The reinforcing structure is at least partially arranged in the cavity and is connected with the frame beam main body, namely the reinforcing structure is used for reinforcing the frame beam main body.