单盘转子系统受强动载荷作用的刚-塑性动力学响应

发布时间：2018-06-20 04:44

本文选题：单盘转子 + 塑性动力学响应　；参考：《北京化工大学学报(自然科学版)》2017年03期

【摘要】：通常转子系统的响应分析是在弹性变形假设下进行的,但当转子受到强动载荷撞击时将产生塑性变形。本文结合转子动力学和塑性动力学,分析了单盘转子受强动载荷作用时的刚-塑性动力学响应。首先,将单盘转子系统简化为中间带质量块的简支梁,给出了在阶跃载荷作用下系统的各阶段响应模式。在此基础上,详细讨论了单盘转子在跨度中点受撞击时的动力学响应完全解,并结合龙格-库塔法得到了单盘转子的瞬态变形。所得结果可为转子系统的动力响应和失效分析提供依据。
[Abstract]:The response analysis of rotor system is usually carried out under the assumption of elastic deformation, but plastic deformation will occur when the rotor is impacted by a strong dynamic load. Combined with rotor dynamics and plastic dynamics, the rigid-plastic dynamic response of a single disk rotor subjected to a strong dynamic load is analyzed in this paper. Firstly, the single disk rotation subsystem is simplified as a simple beam with a mass block in the middle band, and the response modes of the system at different stages under the action of step load are given. On this basis, the complete solution of the dynamic response of the single disc rotor under the impact at the middle point of the span is discussed in detail, and the transient deformation of the single disc rotor is obtained by using the Runge-Kutta method. The results can provide basis for dynamic response and failure analysis of rotor system.
【作者单位】：北京化工大学机电工程学院高端机械装备健康监控与自愈化北京市重点实验室;
【基金】：国家自然科学基金(51275028);国家自然科学基金重点项目(51135001) 北京高等学校青年英才计划(YETP0495)
【分类号】：TH113

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