共查询到18条相似文献,搜索用时 93 毫秒
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针对如何设计出既满足轴承主要性能要求且体积最优的双列圆锥滚子轴承这一实际工程问题,提出了一种以轴承体积为优化目标的双列圆锥滚子轴承优化设计方法.该方法将轴承的主参数作为优化变量,将轴承结构的几何关系、许用接触应力和期望寿命作为优化约束,并采用遗传算法对该模型进行了求解.分析了该模型中不同交叉率对优化目标值的影响,找到了最佳交叉率.通过该优化方法,对某风机主轴承进行了设计,得到了体积最小且满足应力和寿命要求的双列圆锥滚子轴承的设计参数.将优化出的轴承体积与先前使用的轴承进行了对比,发现轴承空间体积减少22%. 相似文献
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为减小圆锥滚子轴承滑动摩擦,建立轴承力学平衡方程,求得轴向位移、径向位移和角位移引起轴承三线(内、外圈滚道素线的延长线和滚子中心线)交点的径向偏移量,并分析了外滚道锥角、内滚道锥角、滚子大端直径、内滚道大端直径、内圈大挡边宽度、外滚道小端直径对轴承三线交点径向偏移量的影响,然后以各滚子接触载荷与三线交点径向偏移量乘积的绝对值之和为目标函数,以轴承装配高为约束条件,得到了轴承优化设计方法。用该方法对30212E圆锥滚子轴承进行优化设计,优化后轴承的滑动摩擦大幅降低,说明了优化设计方法的正确性。 相似文献
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圆锥滚子轴承优化设计系统 总被引:3,自引:0,他引:3
着重对圆锥滚子轴承计算机辅助优化设计的数学模型和约束条件的建立以及优化原理进行了详细的论述,该系统的使用实现了圆锥滚子轴承的智能化设计和绘图,提高了设计效率。 相似文献
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对四点接触球式和交叉滚子式两类转盘轴承的承载能力、刚度和摩擦力矩进行实例对比分析,得出了四点接触球转盘轴承的静承载能力强,摩擦力矩小,而交叉滚子转盘轴承的额定动载荷和刚度大,变形小的结论. 相似文献
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对在低温环境下交叉滚子轴承游隙所受的影响进行了研究,通过对游隙调整的计算以及对轴承低温测试试验的分析论证,总结出滚动轴承在低温环境下的游隙变化规律及其计算方法。 相似文献
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The roller profile plays a key role in the overall performance of roller bearings. In traditional profile design for roller bearings, the roller profile was often analyzed in terms of the bearing performance, particularly the fatigue life. However, the bearing dynamic stiffness and fatigue life were seldom considered simultaneously in the design of Tapered roller bearings (TRBs). Among the available roller profiles, the partially crowned roller profile has been acknowledged as one of the best from the viewpoint of the bearing fatigue life and stiffness characteristics. This paper presented a design optimization for the partially crowned roller profile to improve the performance of TRBs. Two profile parameters of rollers employed for TRBs including the central flat length and crown radius were investigated. The optimal design parameters for the roller profile were obtained in consideration of both bearing fatigue life and stiffness. The proposed design approach was useful and applicable for further geometrical optimization, manufacturing, and engineering application of rolling bearings. 相似文献
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