Structural Optimization Design and Strength Verification of Reducer

Jing-Xuan Hao （ Dalian Jiaotong University, Dalian, Liaoning 116028, China ）

Abstract

As the core component of mechanical transmission systems, the performance of reducers directly determines the overall equipment's reliability, efficiency, and service life. Under the stringent demands of modern industry for high power density, lightweight design, low noise, and high reliability, traditional empirical design methods can no longer meet the requirements. This paper aims to systematically explore advanced strategies for the structural optimization design of reducers and scientifically rigorous strength verification methods. The article first elaborates on the objective system for reducer structural optimization and the importance of multi-physics coupling analysis. Secondly, it provides an in-depth analysis of modern structural optimization design strategies based on topology optimization, size optimization, shape optimization, and parametric modeling. Thirdly, it discusses in detail the theories and methods for static strength, fatigue strength, contact strength, and stiffness verification of key components such as gears, shaft systems, and housings. Finally, it offers an outlook on the development trends in the field of reducer design. Research indicates that deeply integrating advanced optimization algorithms, precise multi-physics simulations, and a comprehensive strength verification system is the key pathway to achieving high-performance and high-reliability reducer design.

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