磁力引纬织机行星增速器多目标可靠性优化设计

针对磁力引纬织机行星增速器常规优化设计方法的不足,提出一种可靠性优化设计方法.将齿轮应力和强度视为随机变量,综合考虑行星增速器的承载能力、结构、质量和传动效率等问题,以机构的体积最小和传动效率最高为目标函数,以行星传动和齿轮疲劳强度可靠性条件、行星传动的运动学条件和几何条件为约束,建立多目标可靠性优化设计模型,应用目标...

Multi-objective reliability optimized design of planetary gear accelerator on a weft insertion device with magnetic force

On the consideration of the shortage of common optimization design method for designing planetary gear accelerator in a loom of weft insertion with magnetic force, a reliability optimization design method taking gears’ stress and strength as random variables was proposed. Based on comprehensive consideration of loading capacity, compact structure, light-weight and transmission efficiency of planetary gear accelerator, its multi-objective reliability optimization design model was set up. In the model, the smallest volume and highest efficiency of the mechanism were taken as the objective functions while reliability conditions of planetary transmission and gears’ fatigue strength, the kinematic and geometric conditions of the planetary transmission were taken as constraints, then the goal programming and sequential quadratic programming algorithm in optimization toolbox of Matlab were used to solve the model. Compared with the common optimization design schemes, the volume of the planetary gear accelerator reduces by 19.42 percent while its efficiency is improved, which shows that the design method is practical, reliable and effective.