87results about How to "Lightweight effect is good" patented technology

The invention relates to a container number and container threshold weight identification method and device based on deep learning. The method comprises the following steps: acquiring a side image of a container body; inputting the side image of the box body into a target detection model, and detecting the coordinates of the area where each target is located and the corresponding target type; cutting out a target image from the box side image, inputting transverse box number images into a box number character block detection model, correspondingly outputting a prediction set by each transverse box number image, detecting character blocks in the prediction sets by adopting non-maximum suppression to obtain a detection set of the character blocks, cutting out character block images, and splicing the character block images to obtain a detection set of the character blocks; obtaining a transverse box number spliced image; and inputting the transverse box number spliced image and other target images into a trained character recognition model, and recognizing the box number, the ISO number and the box threshold weight limiting character. The method has the advantages that the container number and the container threshold weight can be automatically and accurately recognized, the recognition accuracy is high, the method is suitable for various complex container images, and the good recognition effect can be achieved.

The invention discloses a lightweight fruit maturity detection method and system suitable for embedded equipment, and the method comprises the steps: collecting a multi-scene fruit plantation video, and obtaining a plurality of fruit images and a crop fruit image data set; the method comprises the following steps: performing improvement based on a YOLOv81 model, taking a CSPGhostNet network as a backbone network, taking a feature fusion network PANet as a neck network, and setting a classifier and a regression device as a head network so as to establish a fruit detection model; taking the fruit image data set as input, performing multi-layer network channel pruning on the fruit detection model based on a model pruning method, and obtaining a compressed fruit detection model; performing fine tuning training on the fruit detection model and the compressed fruit detection model by using a knowledge distillation method to obtain a lightweight fruit detection model; and detecting the fruit maturity by using the light-weight fruit detection model. According to the invention, rapid and accurate detection of fruit maturity can be realized.

The invention discloses an integrated rear floor structure and a body-in-white assembly with the same. Comprising a rear floor panel, rear floor longitudinal beams fixedly connected to the left side and the right side of the rear floor panel, rear wheel covers located on the left side and the right side of the rear floor panel and fixedly connected to the rear floor longitudinal beams, and a rear floor front cross beam fixedly connected between the front ends of the rear floor longitudinal beams. The rear floor panel, the rear floor longitudinal beam, the rear wheel covers and the rear floor front cross beam are of an integrally-formed structure, the front bottom face and the middle bottom face of the integrally-formed structure are respectively provided with a square-frame-shaped reinforcing rib structure and C-shaped reinforcing rib structures, the C-shaped reinforcing rib structures extend to the rear wheel covers on the left side and the right side from the rear floor panel, and a middle floor is fixed above the square-frame-shaped reinforcing rib structures. The designed rear floor structure is good in integration, excellent in lightweight performance, high in yield and good in collision performance, and the overall rigidity and torsion degree of a body in white are effectively improved.

The invention provides a centralized lubrication electric drive axle which comprises an axle housing, and driving parts are fixedly arranged at the two ends of the axle housing. The cooling and lubricating system is used for cooling and circulating lubricating oil; an oil bottom box is fixedly arranged on the axle housing, an oil suction port is formed in the bottom of the oil bottom box and communicated with an inlet of a cooling and lubricating system through a pipeline, and an outlet of the cooling and lubricating system is communicated with oil inlets of driving components on the left side and the right side through oil inlet pipes respectively. An oil return pipe for communicating the oil outlet of the driving part on each side with the oil bottom box is arranged in the oil bottom box; when the axle housing inclines, the oil return ports of the two oil return pipes are located above the oil surface of the oil bottom box all the time, and the oil suction port is located below the oil surface all the time.

The invention discloses an integrated front cabin manufacturing method, an integrated front cabin structure and a lower vehicle body assembly with the integrated front cabin structure. The integrated front cabin manufacturing method comprises the steps that pouring liquid is poured into a front cabin mold, and vacuumizing operation is conducted on the tops of shock absorption tower molds on the left side and the right side of the front cabin mold, the left side and the right side of the rear portion and the middle portion of the front cabin mold and a feeding pipe of the pouring liquid; and pouring liquid overflowing from the top of the damping tower mold is guided out to a cinder ladle. The front cabin manufactured through integrated die casting is only provided with one part and has high integration, good lightweight performance, good front cabin size precision and excellent collision performance, the vehicle body rigidity and torsional rigidity of the white vehicle body are effectively improved, manufacturing is convenient, and the forming performance is excellent.

The utility model discloses a battery pack body, a battery pack and a power utilization system, the battery pack body comprises a shell, a heat exchange piece and a filling piece, the heat exchange piece is arranged on the shell, and a gap is formed between the heat exchange piece and the shell; the filling piece is arranged in the gap, the first surface of the filling piece is connected with the heat exchange piece, and the second surface of the filling piece is connected with the shell; the thickness of the filling piece ranges from 5 mm to 10 mm. The filling part is arranged in the gap between the heat exchange part and the shell, the heat exchange part and the shell can be connected into a whole through the filling part, so that the structural strength, the impact resistance and the structural stability of the battery pack body are enhanced, meanwhile, the thickness of the filling part is 5-10 mm, the structural strength and the impact resistance of the battery pack body can be maintained, and meanwhile, the battery pack body is not prone to falling off. The cost of the battery pack body is reduced, and the lightweight performance of the battery pack body and the volume energy density of the battery pack with the battery pack body are improved.

The invention discloses a front end energy absorption structure for a railway vehicle, and relates to the technical field of vehicle engineering. In the front end energy absorption structure for the railway vehicle, a car coupler mounting seat is arranged on the front side of a main body frame in the longitudinal direction and can be slidably connected to the main body frame in the longitudinal direction, and an energy absorption device and a car coupler guide device are both fixed between the car coupler mounting seat and the main body frame in the longitudinal direction; the car coupler mounting seat comprises a main seat body; the transverse middle part of the main seat body is a main connecting part which is thicker than the two sides; a center hole is longitudinally formed in the center of the main connecting part in a penetrating mode and communicated with a coupler guiding device, and the periphery, located on the center hole, of the main connecting part is used for being connected with a coupler assembly. The part, directly connected with the coupler assembly, of the main seat body is a high-stress area relative to other positions, the structural requirement for connection of the coupler assembly is met through the thick main connecting part, the other parts are subjected to weight reduction, and the lightweight effect of the front end energy absorption structure can be improved while the structural stability is guaranteed.

The invention relates to the technical field of battery boxes, discloses a lightweight composite material battery box lower box body and a forming method thereof, and relates to a typical structure design scheme and a forming process scheme of a composite material battery box. The lower box body of the battery box comprises connecting piece points such as a water cooling plate, a module and other inserts and components such as a lifting lug and a box body, thermal expansion foam prepreg serves as an internal expansion source, and the battery box is integrally formed through a thermal expansion mold pressing process. The whole lower box body is of a web-reinforced foam sandwich structure, and the strength and rigidity of the lower box body structure of the battery box can be improved through the web structure design in the light foam core, so that the mechanical property requirements of extrusion, bottom impact and the like of the battery box are met.

The invention discloses a lightweight high-strength power cable based on a composite material and application thereof, belongs to the technical field of cable preparation, and aims to solve the technical problem that the lightweight and anti-electromagnetic interference performance of a lightweight cable in the prior art needs to be further improved. The cable comprises a conductor layer, a light shielding layer, a wrapping layer and a composite sheath layer which are sequentially arranged from inside to outside, modified carbon spheres are introduced into a titanium dioxide aerogel structure for filling and loading copper particles, obtained composite aerogel serves as a filling material of the light shielding layer, the modified carbon spheres serve as a cross-linking agent and a filling material of light polyurethane, and the light shielding layer and the composite sheath layer are formed. The composite aerogel and the lightweight polyurethane significantly reduce the density of the cable and significantly improve the lightweight performance of the cable, and through the synergistic cooperation of the copper particles, the titanium dioxide aerogel structure and the hollow carbon spheres, the anti-electromagnetic interference performance of the material is significantly improved.

The invention relates to the technical field of railway vehicles, and provides a bogie frame, a bogie and a railway vehicle, and the bogie frame comprises a box beam, a bearing beam, an inner vertical plate, an outer vertical plate, a bearing bottom plate, a bearing top plate and a plate spring. The box beams are hollow and respectively form mounting channels. The bearing beams are arranged on the box beams respectively. The inner vertical plates are arranged in a bent mode and connected with the bearing beams in a welded mode to define a center pin channel. And the outer vertical plate is welded with the box beam. The bearing bottom plate is connected with the box beam, the inner vertical plate and the outer vertical plate in a welded mode. The bearing top plate is located above the bearing top plate, the top of the box beam is open, the bearing top plate extends to the position above the box beam and is connected with the box beam in a welded mode to seal the top opening, and the bearing top plate is further connected with the bearing beam, the inner vertical plate and the outer vertical plate in a welded mode. The plate spring is installed in the installation channel and extends in the longitudinal direction of the box beam, and the two ends of the plate spring are each provided with a cushion block used for being connected with a wheel set shaft sleeve. The structure is simple, the strength is high, and the forming is convenient.

The invention discloses a low-leakage Roots rotor profile with a larger shape coefficient, which is composed of half-leaf profiles symmetrically adjacent to the pitch circle of twice the number of blades, wherein the half-leaf profile is sequentially composed of four parts, namely, a peak concentric arc outside the pitch circle, a peak conjugate profile, a valley transition curve inside the pitch circle, and a valley concentric arc, which are connected end to end, and the corresponding endpoints and connection points are sequentially a peak point, a vertex, a midpoint, a root point located on the peak symmetry axis, and a valley point located on the valley symmetry axis. The invention has a larger shape coefficient and volume utilization coefficient; has a smaller radial leakage rate and a conjugate leakage rate, and thus has a higher volumetric efficiency and a better lightweight effect.

The invention discloses a mobile terminal circular instrument reading method combining YOLOv8n and perspective correction, and the method comprises the steps: firstly redesigning a lightweight instrument detection model and a key target detection model based on YOLOv8n, reducing a network structure, and generating a lightweight model which is more suitable for a mobile terminal through employing a LiteFFM module integrated with PConv and an LAMP pruning technology; an efficient circular instrument correction method is provided, a correction matrix is constructed through an instrument edge contour point set, distortion caused by shooting inclination is effectively eliminated, and rotation correction is carried out in combination with marks and scale characters. And finally, accurately calculating a reading through an angle enhancement method, and designing an error correction guide mechanism in the APP to optimize user shooting. Experimental verification shows that when the shooting angle is seriously inclined, the correction algorithm can reduce the average relative error by 60.68%. The operation speed of the system on a mobile phone can reach 9 FPS, the average relative error of readings in a complex environment is only 1.76%, the method is superior to an existing advanced method, and high robustness is shown.

The application discloses a light-weight anti-settling type silicone heat-conducting pouring sealant powder filler and a preparation method thereof, and belongs to the technical field of heat-conducting pouring sealant materials. The powder filler is prepared by mixing 70-80 microns of aluminum hydroxide, 50-70 microns of silicon dioxide, 7-10 microns of aluminum hydroxide and 2-3 microns of aluminum oxide, and then adding a surface modifier for dry modification. The application effectively reduces the packing density of the filler, inhibits the settlement and stratification, and maintains good fluidity and heat-conducting performance by means of four-stage particle size grading and the combination of aluminum hydroxide / silicon dioxide / aluminum oxide three-material compounding and dry surface modification. After the obtained powder filler is compounded with vinyl silicone oil, the density of the pouring sealant can be as low as 2.02 g / cm3, the 72-hour settlement amount is only 0.3 mm, the heat-conducting coefficient reaches 1.46 W / m.K, and the pouring sealant has the advantages of light weight, anti-settling, high heat-conducting, low viscosity, halogen-free and flame-retardant. The powder filler has simple preparation process, low cost and wide application.

The invention relates to the technical field of railway vehicles, and provides a bogie frame, a bogie and a railway vehicle. The truck frame includes a load bearing body and two leaf springs. The bearing main body comprises two oppositely arranged C-shaped beams and two oppositely arranged wing-shaped beams arranged between the two C-shaped beams, the two wing-shaped beams are respectively provided with a mounting channel, the two C-shaped beams and the two wing-shaped beams are respectively and integrally cast and molded, and the two C-shaped beams and the two wing-shaped beams are integrally cast and molded. The two C-shaped beams and the two wing-shaped beams are suitable for being connected in a welded mode, and the two C-shaped beams and the two wing-shaped beams jointly define a center pin channel used for installing a center pin. The two plate springs are installed on the two installation channels respectively, the plate springs extend in the longitudinal direction of the bearing body, and the two ends of each plate spring are provided with cushion blocks used for being connected with a wheel pair shaft sleeve respectively. A high strength-to-mass ratio is achieved, the welding seam proportion is reduced to a low level, and the welding seam is made to be away from a high-stress area.

The present invention discloses a battery pack box and a battery pack having the box. The technical solution thereof includes a lower box, an upper cover arranged at the upper end of the lower box, mounting parts arranged at the periphery of the lower box, and a battery accommodating cavity arranged between the lower box and the upper cover. The lower box includes a frame and a spliced ​​bottom plate arranged in the frame. The frame includes a first main beam and a second main beam arranged vertically. The first main beam is provided with a first connecting part matching the spliced ​​bottom plate on the inner side. The second main beam is provided with a second connecting part matching the spliced ​​bottom plate on the inner side. The present invention has many advantages such as good weldability, high structural strength, and easy expansion. It improves the energy density of the system while ensuring the safety of the battery system, and meets the lightweight requirements of the system.

The utility model relates to the technical field of automobile manufacturing, in particular to a production line for batch production of steel-plastic automobile doors, a flame treatment system comprises a first main control cabinet, a flame control cabinet, a first robot control cabinet, a blowtorch robot, a left automobile door outer plate tool table, a right automobile door outer plate tool table and a back door outer plate / spoiler tool table; the gluing system comprises a second main control cabinet, a second robot control cabinet, a side door carrying robot, a rear door carrying robot, a left vehicle door upper / lower tool table, a right vehicle door upper / lower tool table, a reserved tool table, a back door upper / lower tool table, a heating fan and a glue supply system. The device has the advantages of being easy, safe and efficient to operate by staff, and programmed operation can be achieved after simple training; and compared with an all-steel vehicle door, the weight is reduced by 13%-15%, and the light weight effect is remarkable. The production requirements of different vehicle types are met by replacing the outer plate tool table of the flame treatment system and the upper / lower tool table of the gluing system.

The invention relates to a lightweight composite material self-lubricating rotatable spherical hinge and a preparation method thereof, the rotatable spherical hinge comprises an outer sleeve and an elastic body pressed in the outer sleeve, and the elastic body is of a structure formed by attaching an elastic material to the outside of a mandrel; the outer sleeve is of a structure formed in the mode that continuous fibers are woven into an outer sleeve framework through three-dimensional weaving, and resin is injected into the outer sleeve framework. According to the outer sleeve of the spherical hinge, after the continuous fibers are woven into the outer sleeve framework, the resin is injected into the outer sleeve framework to form the overall structure of the outer sleeve, and compared with a metal outer sleeve, the mass of the outer sleeve is greatly reduced; in the forming process, a crystal structure and the self-lubricating property of the elastic body can be formed, the surface roughness of the elastic body is extremely low, a high-abrasion-resistant three-dimensional woven continuous fiber net-shaped structure exists in the outer sleeve, abrasion between the elastic body and the composite outer sleeve can be reduced, and the service life of the spherical hinge is prolonged.

The application relates to the battery technical field and discloses a battery pack and a power utilization equipment, which comprises a first beam body, a cover plate, a partition plate and a bottom plate. The first beam body comprises a first beam main body and a mounting piece connected with each other, the first beam main body is provided with an exhaust passage, the mounting piece is located on one side of the first beam main body along a second direction, the mounting piece is provided with a penetrating air inlet, the air inlet is communicated with the exhaust passage, the cover plate is connected with one end of the first beam main body which is away from the mounting piece, the partition plate is connected with the mounting piece, the partition plate, the first beam main body and the cover plate surround a containing cavity, a plurality of pressure relief parts are arranged on the partition plate, a gas collecting cavity is formed between the bottom plate and the partition plate, the gas collecting cavity is communicated with the air inlet, the bottom plate is connected with one end of the first beam main body which is away from the cover plate, and the end part of the partition plate which is close to the air inlet along the second direction is arranged in a spaced mode with the air inlet. The battery pack disclosed by the application reduces the material consumption of the partition plate.

The invention relates to a Roots rotor profile with higher volumetric efficiency and inner straight conjugation, comprising 4, 6, and 8 half-lobe profiles circumferentially symmetrically adjacent to each other under 2, 3, and 4 blades. The half-lobe profile is composed of six parts, namely, a peak concentric arc outside the pitch circle, a peak transition curve, a peak conjugated profile, and an inner straight conjugated profile, a valley transition curve, and a valley concentric arc inside the pitch circle, which are connected end to end. The corresponding endpoints and connection points are, in sequence, a peak point, a vertex, an outer starting point, a mid-node, an inner starting point, a root point located on a peak symmetry axis, and a valley point located on a valley symmetry axis. The low-leakage Roots rotor profile with a larger shape coefficient of the invention has a larger shape coefficient and a volume utilization coefficient, and a smaller radial leakage rate and a conjugate leakage rate, so it has a higher volumetric efficiency and a better lightweight effect.

This utility model relates to a suspension positioning parameter fine-tuning compensation mechanism for FSAE racing cars, installed between the wheel and the suspension, comprising: a suspension pillar with an upper bearing surface and a lower bearing surface, both bearing surfaces having bolt holes; the U-shaped bottom surface of the upper U-shaped clamp having matching holes corresponding to the two bolt holes on the upper bearing surface, and being detachably connected to the upper bearing surface by bolts; the U-shaped bottom surface of the lower U-shaped clamp having matching holes corresponding to the two bolt holes on the lower bearing surface, and being detachably connected to the lower bearing surface by bolts; and a positioning parameter fine-tuning wedge, which is a sheet-like structure with a predetermined thickness and / or inclination angle, and is selectively or simultaneously fitted between the upper bearing surface and the upper U-shaped clamp, and between the lower bearing surface and the lower U-shaped clamp. This utility model, by replacing wedges of different thicknesses and / or inclination angles, allows for quick and precise fine-tuning of the wheel track and wheel camber angle without disassembling the suspension assembly, effectively compensating for accumulated manufacturing and assembly errors, and adapting to the high-frequency steering requirements of FSAE racing cars.

The invention discloses a stable-structure, fire-extinguishing and flame-retardant lightweight composite material plate which is characterized by comprising a protective surface layer, an energy-absorbing buffer layer and a fire-extinguishing and flame-retardant inner layer which are sequentially compounded from outside to inside, and all the layers are integrally formed into the plate through a continuous hot-pressing compounding process; the preparation method of the composite plate comprises the steps of raw material pretreatment, preparation of each layer of continuous blank, and integrated forming and post-treatment of the continuous plate. The composite material plate is applied to a new energy battery shell. The invention aims to solve the problems of single function and insufficient safety protection performance of the existing new energy battery shell, realize the functions of stable integrated structure, fire extinguishment, flame retardance and light weight, improve the comprehensive safety protection performance of the battery shell, simplify the production process and reduce the production cost.

The present invention provides an underframe of an all-aluminum car body, comprising a bottom frame, a bottom cross beam and a secondary longitudinal beam, the bottom cross beam and the secondary longitudinal beam are cross-connected, the secondary longitudinal beam is connected to a vehicle body beam, the secondary longitudinal beam is constructed as a groove structure with a horizontal opening, a double cross beam support is adopted to connect the bottom cross beam and the secondary longitudinal beam, a single support is adopted to connect the bottom frame and the secondary longitudinal beam at the front and rear of the vehicle, and a support block is adopted to support the secondary longitudinal beam connection node; the secondary longitudinal beam structure and the bottom cross beam of the present invention are simplified, small in size, and reduce the weight of the car body, simple bolt connection is adopted, the installation process is simplified, and the bearing capacity is strong, and the difficult problems of low welding strength and easy failure of aluminum alloy at the connection node are solved, and outstanding contributions are made to the overall force dispersion of the car body, the reduction of stress at the connection node, and the improvement of the firmness and reliability of the connection point.

The utility model discloses an automobile seat light weight skeleton structure which comprises a cushion skeleton, a cushion fixing plate, a backrest adjusting plate, a backrest skeleton and a headrest connecting pipe, a hip support connecting steel pipe and a leg support connecting steel pipe are transversely and fixedly connected in the cushion skeleton, and a cushion supporting rib is fixedly connected between the leg support connecting steel pipe and the hip support connecting steel pipe. And backrest supporting ribs are transversely and fixedly connected to the backrest framework. According to the automobile seat, the seat cushion framework and the hip support connecting steel pipe are of a circular steel pipe structure, the backrest framework and the leg support connecting steel pipe are of a semicircular steel pipe structure, and the seat cushion supporting rib and the backrest supporting rib are of a thin and straight steel bar structure, so that the structural strength of the bearing part is ensured; steel materials are reduced at the non-bearing part, the weight is further reduced on the basis of the prior art, the weight of the whole vehicle seat framework is reduced in the same or similar mode, and the obvious overall weight reduction effect is achieved.

This invention discloses a lightweight deep neural network array direction finding method based on data redundancy removal, which solves the problem that the traditional RDNN direction finding method has a large number of deep neural network nodes and cannot achieve network lightweighting. The method performs redundancy removal operation on the upper triangular elements of the covariance matrix, simplifies the number of subsequent hidden layer nodes, reduces the computational complexity of the model, and ensures that the direction finding accuracy of the model is not lost, thus realizing high-precision direction finding of lightweight deep neural networks.

The invention relates to an automobile aluminum alloy front steering knuckle which comprises a steering knuckle body, a weight reduction cavity is formed in the steering knuckle body, and at least one sand discharging hole communicated with the weight reduction cavity is formed in the steering knuckle body in a penetrating mode. The two ends, corresponding to the length direction, of the steering knuckle body are bent in the opposite directions to form bent structures, one bent structure is formed by bending one end of the steering knuckle body towards the upper side, and the other bent structure is formed by bending the other end of the steering knuckle body towards the lower side. And the two bending structures are fixedly connected with reinforcing rib structures. By the adoption of the technical scheme, the technical problems that an existing front steering knuckle is heavy in weight and relatively high in manufacturing cost can be solved.

The present application relates to the field of rail vehicle technology, and provides a bogie frame, a bogie and a rail vehicle. The bogie frame comprises a box beam, a load bearing beam, an inner vertical plate, an outer vertical plate, a load bearing bottom plate, a load bearing top plate and a leaf spring. The box beam is hollow inside and forms mounting channels. The load bearing beam is arranged on the box beam. The inner vertical plate is curved and connected to the load bearing beam by welding to form a kingpin channel. The outer vertical plate is connected to the box beam by welding. The load bearing bottom plate is connected to the box beam, the inner vertical plate and the outer vertical plate by welding. The load bearing top plate is arranged above the load bearing top plate. The top of the box beam is open. The load bearing top plate extends above the box beam and is connected by welding to close the top opening. The load bearing top plate is also connected to the load bearing beam, the inner vertical plate and the outer vertical plate by welding. The leaf spring is mounted in the mounting channel. The leaf spring extends along the longitudinal direction of the box beam. The two ends of the leaf spring are provided with pads for connecting to wheelset shaft sleeves. The present application has the characteristics of simple structure, high strength and convenient forming.

The invention relates to the related technical field of brake friction materials, in particular to a caragana microphylla fiber reinforced light copper-free brake friction material and an operation method thereof. The friction material is composed of caragana microphylla fibers, sepiolite fibers, composite mineral fibers, phenolic resin, crystalline flake graphite, petroleum coke, aluminum oxide, friction powder, calcium carbonate, vermiculite powder, precipitated barium sulphate, zinc stearate and other functional components. Wherein the caragana korshinskii fibers have multiple excellent properties such as low density, high specific strength, environmental friendliness and reproducibility, the economic value of caragana korshinskii crops can be improved while the performance of the friction material is improved and the lightweight requirement is met by introducing the caragana korshinskii fibers into the resin-based brake friction material, and the economic value of the caragana korshinskii crops can be improved by adopting a method of combining alkali treatment and coupling agent treatment. The mechanical strength of the caragana microphylla fiber and the interface bonding strength of the caragana microphylla fiber and a resin matrix are improved, so that the enhancement potential of the caragana microphylla fiber is exerted, and the comprehensive performance of the friction material is optimized.

The invention discloses a lightweight design method for a battery pack bracket, and belongs to the technical field of new energy commercial vehicles. The method comprises the steps of carrying out a battery pack bracket mounting modal test, obtaining modal frequency and vibration mode, establishing a finite element analysis model of a battery pack and a bracket, and adjusting material parameters of the battery pack, so that a simulation modal and the vibration mode are consistent with a test modal. The method comprises the following steps: dividing sub-assembly modules of a battery pack bracket according to structural functions, establishing a topological analysis model of the battery pack and the bracket, carrying out topological optimization calculation on the battery pack and the bracket assembly to obtain a topological optimization analysis result model, carrying out model reconstruction on the basis of sectional material sizes of common specifications in the market to obtain a reconstructed finite element calculation model, and carrying out model optimization calculation on the reconstructed finite element calculation model. And carrying out size optimization analysis on the battery pack and the bracket assembly to finally obtain a lightweight scheme with the optimal shape and thickness. According to the invention, the structural functions of the battery brackets are classified, so that batch assembly is facilitated, the assembly efficiency of the battery pack bracket assembly is improved, and the labor cost of a single component is reduced.

The invention provides a lightweight design method for a high-strength treading device, and relates to the technical field of automobiles. According to the design method, on the basis of combination of ergonomic school pairs and CAE simulation analysis, the trampling device meeting the requirements for light weight and bearing performance is designed by benchmarking vehicle models, setting a product weight target and adjusting a basic framework in the design of the trampling device. According to the lightweight design method for the high-strength treading device, lightweight design can be conducted on the treading device, the weight of a product is reduced as much as possible on the premise that the bearing performance is guaranteed, meanwhile, the development period of automobile parts is shortened, and the market competitiveness is improved.