Multi-working-condition and multi-target design method for automobile seat framework
A car seat frame and design method technology, applied in the direction of calculation, special data processing applications, instruments, etc., can solve the problems of poor lightweight effect and low accuracy, and achieve light structure weight and small maximum impact contact force Effect
Active Publication Date: 2014-11-26
YANFENG ADIENT SEATING CO LTD +1
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[0004] The purpose of the present invention is to overcome the defects of the prior art, provide a multi-working-condition and multi-objective design method for the car seat frame, and solve the problem of low accuracy and light weight of the existing car seat frame design structure using empirical analogy design underperforming problems
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[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0037] The present invention proposes a car seat frame optimization design method based on a multi-objective evaluation mechanism in consideration of dynamic and static multi-working conditions. Establish a multi-objective optimization mathematical model of the seat frame structure, with the goal of the lightest frame structure and the smallest maximum impact contact force, where the maximum impact contact force refers to the contact force on the car seat frame when the entire car is subjected to the maximum impact force; The improved multi-objective genetic algorithm is used to obtain the Pareto frontier solution set, the weight factors of the sub-objectives are determined by the fuzzy preference method, and the multi-objective evaluation function is established to obtain the best comprehensive satisfaction scheme in the Pareto frontier solutio...
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The invention relates to a multi-working-condition and multi-target design method for an automobile seat framework. The multi-working-condition and multi-target design method for the automobile seat framework comprises the steps that design variables of the automobile seat framework are selected; a mathematic model of the automobile seat framework is established by combining the design variables with the rigidity of the automobile seat framework in the static and dynamic working conditions as constrain conditions and the structure weight and the maximum impact contact force of the automobile seat framework as a target function; the mathematic model of the automobile seat framework is solved by combining the design variables with a multi-target genetic algorithm, and a solution collection of the automobile seat framework is obtained; the optimal solution of the structure weight and the maximum impact contact force of the automobile seat framework is selected from the solution collection of the automobile seat framework; structural parts of the automobile seat framework are arranged according to the design variable value, corresponding to the optimal solution, of the automobile seat framework. The multi-working-condition and multi-target design method for the automobile seat framework solves the problems that at present, analogies of experience are adopted for designing the automobile seat framework, accuracy is not high, and the lightweight effect is poor.
Description
technical field [0001] The invention relates to a manufacturing method of a product, in particular to a multi-working-condition and multi-objective design method for an automobile seat frame. Background technique [0002] The reliability, comfort and economy of car seats mainly depend on the internal skeleton structure. The seat frame is the main structure that bears the weight of passengers during driving, and is also an important device to protect the occupants in the car in the event of a traffic accident. Therefore, the safety of the seat frame under dynamic and static conditions is an important criterion for frame design. At the same time, the car seat frame is the main part of the seat quality. A reasonable seat frame structure must achieve light weight as much as possible on the premise of meeting safety, so as to obtain good economy and fuel economy. [0003] At present, the design of the car seat frame is mostly based on empirical analogy design. Due to the complex...
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IPC IPC(8): G06F17/50
Inventor 王海华丁晓红倪维宇张永强余慧杰
Owner YANFENG ADIENT SEATING CO LTD