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Design and optimization of assembled flywheel system in electromagnetic eddy currency retarder test-bed |
YING Fu-Qiang, LI Min, LV Yuan-Jun |
The Ministry of Education Key Laboratory of Mechanical Manufacture and Automation, Zhejiang University of Technology, Hangzhou 310014, China |
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Abstract Assembled flywheel system is a key component of electromagnetic eddy currency retarder test-bed, which is used for simulating inertia of vehicles. According to energy conservation theory, expression of vehicle mass is presented and the relationship between moment of inertia corresponding to the simulated vehicle mass and vehicle parameters is established. A new type of assembled flywheel system with novel structure is designed. Under the prerequisite of consideringpractical application, a set of feasible optimization and combination schemes of assembled flywheel system’s moment of inertia are put forward. By applying finite-element modal analysis method, after modal analysis of combined and optimized flywheel system, natural frequency and vibration-mode are achieved, which provides references for avoiding resonance during test bed’s running.
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Published: 28 August 2006
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车用电涡流缓速器试验台组合飞轮系设计及优化
飞轮系是车用电涡流缓速器试验台用来模拟车辆惯性的关键部件。根据能量守恒理论,给出了汽车质量的表达形式,建立了所模拟汽车的质量相对应的转动惯量与汽车参数(车身重量G、车轮半径r、前后车轮制动力分配比β)之间的关系。设计了一种结构新颖的组合飞轮系。在考虑实际应用要求的前提下,总结出一套可行的飞轮系转动惯量优化组合方案。利用有限元模态分析方法,对组合优化后的飞轮系进行模态分析,得到了飞轮系固有频率和振型,为试验台运行时避免共振提供了依据。
关键词:
组合飞轮系,
组合优化,
转动惯量,
模态分析
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