Abstract: Accumulators are an essential part of high-pressure hydraulic systems, and their normal operation is crucial for the transmission to perform functions such as gear shifting and clutch engagement. The accumulator bracket is the device that secures it to the casing. During testing of a transmission prototype, a failure occurred due to the fracture of the accumulator bracket, leading to the malfunction of the transmission's related functions. Through investigation and analysis, it is found to be caused by design reasons. This paper conducts a strength analysis of the accumulator bracket using the finite element method, revealing that there is a risk of fracture failure under extreme conditions. Based on the analysis results, the accumulator bracket is optimized, and a design that meets the requirements is ultimately obtained, which has successfully passed the tests. The analysis methods and optimization ideas mentioned in the text have certain reference value for the design and development, as well as simulation analysis of accumulators.

Key words: accumulator bracket; optimized design; FEA; experimental verification

摘要： 蓄能器是高压液压系统的重要组成部分，蓄能器的正常工作是变速箱实现换挡和离合 器结合等功能的保证。蓄能器支架是将其固定在壳体上的装置。在某变速箱样件试验中发生 了蓄能器支架断裂的问题，导致变速箱相关功能失效，通过排查分析发现为设计原因导致。 文章通过有限元法对蓄能器支架进行强度分析，发现在极限工况下蓄能器支架存在断裂失效 风险，并基于分析结果对蓄能器支架进行优化设计，最终得到满足要求的设计并顺利通过试 验。文中提到的分析方法和优化思路，对蓄能器的设计研发和仿真分析均有一定参考作用。

关键词: 蓄能器支架；优化设计；有限元分析；试验验证