Engine timing cover cap lightweight CAE analysis method

Abstract

The invention discloses an engine timing cover cap lightweight CAE analysis method. The method comprises the steps of S1, establishing a timing cover cap initial scheme finite element model; S2, performing modal analysis calculation and frequency response analysis calculation on the finite element model of the initial scheme of the timing cover cap; S3, performing vibration response optimization on the finite element model of the initial scheme of the timing cover cap; S4, establishing a topological structure of the timing cover; S5, establishing a 1D shell unit model of the timing cover and performing morphology optimization; S6, obtaining a timing cover optimization scheme based on the vibration response optimization and morphology optimization result cloud atlas; and S7, a timing coveroptimization scheme: establishing a timing cover optimization model, and carrying out modal and frequency response analysis and local optimization check. According to the lightweight CAE analysis method for the engine timing cover cap, designers can be helped to obtain a lightweight design scheme of the timing cover cap structure on the premise of considering the performance, and the product development speed is increased.

Description

technical field [0001] The invention belongs to the technical field of engine lightweight design, in particular, the invention relates to a lightweight CAE analysis method for an engine timing cover. Background technique [0002] This section provides background information related to the present disclosure only and is not necessarily prior art. [0003] At present, the engine is the main power machine today, and people are pursuing an engine with lighter weight, higher power, and lower vibration and noise. The thin-walled parts of the timing cover are the largest source of external radiation noise on the engine, so it is very important to have better rigidity and strength to reduce the radiation noise of the timing cover. [0004] In the prior art, the design of the timing cover mostly adopts analogy or benchmarking methods. When problems such as large vibration and noise occur in the timing cover structure, the method of overall strengthening is often adopted, which makes...

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Problems solved by technology

[0004] In the prior art, the design of the timing cover mostly adopts analogy or benchmarking methods. When problems such as large vibration and noise occur in the timing cover structure, the method of overall strengthening is often adopted, which makes the engine mass larger and larger

At the same time, the structural stress state of different parts of the cover is quite different, and the bearing capacity of the material is not fully utilized, which does not meet the requirements of lightweight design

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