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以海底行走机构行星齿轮传动的中心齿轮齿数、模数和齿宽为设计变量,考虑影响齿轮传动应力计算各种因素的随机性、边界约束的模糊性,以行星轮系的体积和最小为目标函数,应用模糊可靠性优化设计理论,建立了海底行走机构行星齿轮传动的模糊可靠性模型。分别以原设计、普通优化设计和模糊可靠性优化设计方案建立了行走机构的虚拟样机,仿真分析表明三种设计方案均能满足行走机构的作业要求,模糊可靠性优化设计在满足使用要求并且保证可靠度的前提下大幅度(比原设计降低了8.87%)地减小了行星轮系的体积,提高了行走机构的机动性能,具有很大的实用价值。
Taking the gear number, modulus and tooth width of the sun gears of planetary gear drive as design variables, taking into account the randomness of various factors that affect the gear transmission stress and the ambiguity of the boundary constraint, the objective is to take the size and minimum of the planetary gear train Function, a fuzzy reliability model of planetary gear drive for subsea walking mechanism is established by applying fuzzy reliability optimization design theory. The virtual prototype of the walking mechanism was established based on the original design, the general optimization design and the fuzzy reliability optimization design respectively. The simulation results show that the three design schemes can meet the operating requirements of the walking mechanism. The fuzzy reliability optimization design meets the requirements of use and guarantees The reliability of the premise of a substantial (lower than the original design of 8.87%) to reduce the size of the planetary gear train to improve the maneuverability of the running gear, with great practical value.