Shenyang Instrument Institute "Precision Metal Bellows Design" scientific research project passed expert acceptance

The scientific research project "Precision Metal Bellows Design Technology" undertaken by Shenyang Instrumentation Institute passed the acceptance of experts. This project is a supporting scientific research project for technology promotion. Its technical difficulty is long and the development cycle is long. The development requirements represent the highest technical level of related industries.

The expert group composed of SINOMACH and China Aerospace Science and Technology Corporation carefully listened to the research report and financial audit report of the research group, reviewed the development samples, and reviewed the acceptance data. The expert group agreed that the project used a combination of finite element simulation analysis and testing to form a U-shaped precision bellows design technology, which effectively solved the mutual constraints of its design parameters such as stiffness, strength, and fatigue life. The method to deal with the problem of nonlinearity and thermal coupling of bellows is improved, which improves the analysis accuracy of bellows. 90 types of bellows have been developed and provided to meet the needs of assembly.

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