Design method of multi-performance collaborative matching lightweight composite material plate spring
A composite material plate and design method technology, which is applied in the field of vehicle suspension design, can solve the problems of lack of composite material leaf spring layup process parameters, and the difficulty of composite material leaf springs to meet multiple mechanical properties at the same time, so as to achieve applicability and operability effect
Pending Publication Date: 2022-06-24
NANJING NAVECO AUTOMOBILE CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to address the problems existing in the prior art, and propose a design method for lightweight composite material leaf springs with multi-performance synergistic matching, to solve the problem that the composite material leaf springs designed by traditional methods are difficult to meet multiple mechanical properties at the same time, And there is no clear and feasible optimization method for the process parameters of composite leaf spring layup
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[0056]The present embodiment provides a method for designing a lightweight composite leaf spring based on a variety of performance synergistic matching technologies. There is a large error with the test method, and the composite material leaf spring designed by this method is difficult to meet the requirements of light weight, reliability and shock absorption performance of the leaf spring at the same time. The invention provides a collaborative matching technology based on multiple performances. The design method of lightweight composite leaf spring to solve the above problems.
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The invention relates to a multi-performance collaborative matching lightweight composite material plate spring design method which comprises the following steps: firstly, preparing a composite material laminated plate and performing a material performance test; secondly, initial design is conducted on the composite material plate spring assembly structure; a preliminary laying scheme of the leaf spring body is designed; carrying out three-dimensional modeling and finite element modeling on the composite material plate spring assembly, and carrying out finite element simulation calculation on the composite material plate spring; a laying scheme optimization design of a genetic algorithm is adopted, and optimization scheme simulation verification analysis is carried out; and finally, trial-manufacturing and performance testing are conducted on the composite material plate spring sample piece. The light weight, the reliability and the damping performance of the composite material plate spring can be effectively improved.
Description
technical field [0001] The invention relates to a leaf spring design method, in particular to a lightweight composite material leaf spring design method based on multiple performance synergistic matching technologies, and belongs to the technical field of vehicle suspension design. Background technique [0002] With the rapid development of the economy, energy and environmental problems have become more and more serious. Energy saving and environmental protection have become the key research directions of automotive products, of which lightweight is an inevitable development trend of automobiles. According to statistics, the weight of the leaf spring accounts for about 8 to 9% of the weight of the car. Under the condition of the same stiffness, the weight of the composite leaf spring is about 40% of the weight of the leaf spring, which can significantly improve the economy, power and comfort of the car. At present, lightweight can be achieved through three ways: structure o...
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IPC IPC(8): G06F30/17G06F30/23G06F113/26
CPCG06F30/17G06F30/23G06F2113/26
Inventor 张宝邹小俊朱光耀刘凯高加祥古忠
Owner NANJING NAVECO AUTOMOBILE CO LTD