47results about How to "Achieve lightweight effect" patented technology

The invention discloses an automobile energy absorption box. The automobile energy absorption box comprises an energy absorption box body. The energy absorption box body is made of carbon fiber composite materials and is filled with foam aluminum alloy ingots. According to the automobile energy absorption box, as the energy absorption box body is made of the carbon fiber composite materials, the light weight effect is achieved; compared with a common metal energy absorption box, the weight of the energy absorption box which is filled with the foam aluminum alloy ingots and made of the carbon fiber composite materials is reduced by 25% to 40%, the absorbed energy is 1.5 times to 3 times that of the common metal energy absorption box, the collision energy absorption effect can be accordingly improved, and the light weight effect is achieved.

The invention relates to a modularized vehicle door with steel, aluminum and plastic mixed. Compared with a total complex structure of a traditional vehicle door, according to the modularized vehicle door with steel, aluminum and plastic mixed, the original complex vehicle door structure is modularized, and the vehicle door structure is divided into three functional modules which include a vehicle door outer plate, a vehicle door frame, a vehicle door inner plate and an accessory module. According to the functionality of all parts of the vehicle door, traditional vehicle door modules are functionalized, and good vehicle door manufacturing and assembling manufacturability is achieved. The modularized vehicle door with steel, aluminum and plastic mixed is specifically characterized in that the vehicle door outer plate is not a main stressed part in the vehicle door structure, the strength and rigidity requirements are moderate, and the purpose generally lies in the effect that the functional requirements for meeting external shapes are improved; the vehicle door inner plate is not a main stressed part, either, and can be made of composite materials or plastic. According to the modularized vehicle door with steel, aluminum and plastic mixed, factors in all the aspects of strength, rigidity, appearance and weight are taken into comprehensive consideration, the vehicle door outer plate can be made of thinner metal material plates and aluminum alloy materials, and the aluminum alloy materials are light, small in specific gravity, high in strength, good in ductility, and high in corrosion resistance and meanwhile has good forming performance, machinability and the like.

An apparatus for simulating the climbing along cliff is composed of a base, a vertical frame on said base, and a circulating rotation mechanism consisting of the endless chains, the grasping blocks arranged on said chains, several transverse bars and barrier for bearing the horizontal force applied to chains, and an endless soft pad covering on said chains.

The present invention uses the normal same pixel besides the dead pixel to calculate so as to prevent the error which may occured in offset correction when dead pixel exists in the same pixel group in the window with specific size for correcting the offset between Gr pixel and Gb pixel. Besides, an Edge area identification function is added so that bypass occures during the offset correction in the Edge area so as to maintain the boldness of the light and shade contrast part.

The invention provides a chain tooth, a chain strap and a zipper. The chain tooth and a strap are arranged together to form the chain strap, and the chain tooth comprises a body part, a mounting part,a neck part and a head part. The body part and the head part are connected through the neck part, the mounting part is used for mounting of the strap, the body part comprises an upper body part and alower body part, and at least one of the upper body part and the lower body part comprises a protruding part and a base part. The protruding part extends out of the base part, is located in the middle in the front-back direction and extends in the left-right direction. Furthermore, an inclined part inclined downwards in the left-right direction is formed on at least one side, in the vertical direction, of the head part, and convex parts extending in the front-back direction are formed on the two sides of the protruding part. According to the chain tooth, the chain strap and the zipper, weightreduction can be achieved, and strength and use reliability can be guaranteed.

The invention provides an automobile front axle assembly, and relates to automobile accessories. The automobile front axle assembly comprises a front axle, a brake assembly and a hub assembly which are respectively arranged at two ends of the front axle, wherein the hub assembly comprises a hub body, an outer bearing and an inner bearing which are arranged in the hub body; a brake boss is arranged on the hub body instead of a brake disc; friction plates are connected with left and right end faces of the brake boss, and thermal baffles are arranged between the friction plates and the brake boss; the outer bearing and the inner bearing are connected into a whole to form an integral unit bearing; and one or a plurality of through holes are formed in the front axle to realize light weight. According to the automobile front axle assembly, the brake disc is canceled in the hub assembly, and the friction plates and thermal baffles which are connected together with the hub body are adopted to replace the brake disc, so that the aims of production cost conservation, facilitated after-sale replacement and low maintenance cost can be achieved; and the whole axle has the characteristics of light weight, long service life, front axle bearing capacity guarantee, and is easy for popularization and application.

The invention relates to lightweight and high strength and ductility automotive steel using silicon instead of aluminum. An alloy comprises, by weight percentage, 0.1-0.4 wt% of C, 3.5-5.5 wt% of Si,4.0-6.0 wt% of Mn, 0.5-1.0 wt% of Ni, 0.01-0.1 wt% of Ti and the balance Fe. The invention further relates to a preparation method of the lightweight and high strength and ductility automotive steel using silicon instead of aluminum. The preparation method includes the alloy component weighing and taking, smelting, casting and hot rolling procedure. The lightweight and high strength and ductilityautomotive steel using silicon instead of aluminum and the preparation method of the steel are provided. The material has excellent mechanical performance, and is low in production cost and simple inprocess, a series of problems caused by lightweight aluminum are compensated very well, and great application prospects are achieved.

The invention discloses an integral wheel stamping and spinning manufacturing method. The method comprises the following steps that (1) stamping is carried out, specifically, stamping is carried out on a blank so as to form a spoke part; (2) pre-spinning is carried out on a rim, specifically, the blank is clamped by adopting an upper pre-spinning mandrel and a lower pre-spinning mandrel, the upperpre-spinning mandrel and the lower pre-spinning mandrel drive the blank to rotate synchronously, and meanwhile, lateral extrusion force is applied to the outer edge of the blank by adopting an autorotation and radial feed type spinning wheel so as to form the outer edge of the blank into the V-shaped rim with an outward opening; (3) spinning forming is carried out on the rim, specifically, the blank is clamped by adopting an upper rim forming mandrel and a lower rim forming mandrel, the upper rim forming mandrel and the lower rim forming mandrel drive the blank to synchronously rotate, and meanwhile, pressure is applied to the two sides of the V-shaped rim by adopting an autorotation and radial feed type forming spinning wheel so as to enable the two sides of the V-shaped rim to be attached to the upper rim forming mandrel and the lower rim forming mandrel respectively; and (4) spinning is carried out on a wheel flange.

The invention discloses a real-time video stream-oriented edge environment behavior recognition system, which comprises a video stream acquisition module, a video stream storage module, a video stream preprocessing module, a cache module, a sliding window positioning module, a behavior recognition module and a user interface module; the sliding window positioning module starts an online detection method based on the action of the elastic jumping sliding window, a large amount of computing resources are saved by positioning the position of the action, and meanwhile, large loss of the detection performance of an original model with excellent performance due to the fact that frame-by-frame sliding of the sliding window is abandoned is avoided; a model lightweight effect is realized to a certain extent, a large amount of invalid data is prevented from being sent to a behavior identification module, the behavior identification efficiency is improved, the identification real-time performance is improved, and the privacy security problem of data acquired by edge equipment in a sensitive scene is better protected through data localization processing; and compared with a behavior identification service generally based on a cloud center, the system is more beneficial to the use of edge devices with limited resources.

The invention relates to a composite engine hood inner panel of an electric vehicle. An engine hood inner panel and an engine hood outer panel are connected in a gluing manner through an adhesive; theengine hood inner panel is provided with a flange; the gluing connection structure comprises a plurality of hoppers, stop blocks and a spill-proof block; the hoppers are respectively arranged on theflange of the engine hood inner panel; the stop blocks are arranged on the side near the outer panel, in the hoppers; the shape of each of the stop blocks is matched with that of the corresponding hopper; the stop blocks are higher than the plane of the inner panel; two kinds of adhesive with different properties can be separated by the stop blocks to achieve hybridization gluing; the spill-proofblock is located on the side near the inner panel, of the outer panel; the shape of the spill-proof block is determined according to the shape of the edge of the inner panel; the spill-proof block ishigher than the plane of the inner panel to prevent the adhesive form spilling; the composite-material engine hood inner panel disclosed by the invention is formed by adopting integrated injection molding of composites, and is low in the mold opening cost and high in the production efficiency; and through adoption of the hybridization connection, mechanical properties of different cohesive glue layers are reasonably utilized, the stress concentration at end heads is reduced, better adhesive properties are achieved, beautiful appearance of gluing is guaranteed, and the cost is saved.

The invention discloses a natural fiber reinforced ABS composite material and a preparation method thereof. The composite material comprises a main material and an auxiliary material, wherein the mainmaterial is prepared by, by weight, 75-92 parts acrylonitrile-butadiene-styrene copolymer, 5-20 parts of modified natural bast fiber and 3-5 parts of modified toughening agent; the auxiliary materialis prepared by, based on the fact that the total weight of the main material is 100 parts, 0.2 part of antioxidant and 0.2-0.5 part of lubricant. The prepared natural fiber reinforced ABS composite material is excellent in mechanical performance, low in density and lightweight.

The invention provides a wheel key parameter automatic optimization method and system, and the method comprises the following steps: obtaining an initial design scheme, evaluating the initial design scheme, and obtaining a wheel initial performance evaluation result; optimizing the initial design scheme according to the spoke and rim model, and evaluating the obtained optimization design scheme toobtain a wheel optimization performance evaluation result; and comparing the wheel initial performance evaluation result with the wheel optimization performance evaluation result to obtain an optimaldesign scheme. According to the invention, design is carried out from wheel angles; an automatic optimization algorithm is adopted; based on an optimization design theory and method, the optimal scheme is automatically, quickly and optimally selected by using a numerical method, so that the product development period can be shortened, the experimental cost can be saved by the optimal scheme, thetransmission of acoustic cavity resonance energy can be inhibited on the premise of not increasing a new structure or material, the riding comfort is improved, and a light weight effect can be achieved.

The invention is a microphone fixing device, which includes a body, a fixing base and a press button, wherein a PCB and a radio device are equipped in the body. The fixing device is equipped in the body, at the same time a touch hole is formed on the corresponding PCB, and each fixing rib is projected from each of the double-side of the fixing base wall surface, for pressing the PCB and limiting shakes between the body and the fixing base; and the press button passes through the touch hole and selectively presses the PCB, thereby controlling the open/close of the radio device.