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Key Technologies of Performances Analysis and Optimization for Fixed Axis Transmission Assembly and Box of Wheel Loader

Abstract

近年来国外装载机及国内高配置的装载机传动系方面的发展趋势是变速器大多为电液控制动力换档定轴式变速器,其可靠性高、寿命长、通用性好。然而其高端技术和市场目前均为国外企业所垄断,国内只是对国外变速器进行简单的仿制,且制造出的变速器达不到原变速器的性能。为了避免设计的盲目性,并为新变速器的设计提供指导,本文利用有限元和模态试验技术对某型号定轴变速器进行静动态特性分析,并对变速器箱体进行了优化设计。 首先,利用ANSYSWorkbench建立了变速器箱体的有限元模型,之后对其进行静力分析和自由模态分析;为了验证有限元模型的有效性,进一步对箱体进行了模态试验;用之前的有限元自由模态分析得到的模态参数来...In recent years, the electro-hydraulic control power shift fixed axis transmission is regarded as the development trend of driveline for the foreign loaders and domestic high-end configuration loaders, due to its high reliability, long life and good versatility. Nevertheless, high-end technology and markets are monopolized by foreign enterprises, and domestic transmission is only a simple imitatio...学位:工学硕士院系专业:物理与机电工程学院机电工程系_机械电子工程学号:1992009115247

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