全地面起重机发动机振动仿真和试验研究

发布时间：2018-04-10 18:20

本文选题：发动机 + ADAMS/Engine　；参考：《吉林大学》2011年硕士论文

【摘要】：本文针对某全地面起重机车辆在使用过程中异常抖动,甚至产生变速箱辅助支承和发动机支承破坏的现象对发动机进行振动分析。本文分析了全地面起重机发动机振动产生的原因和主要分类,以及常用的研究发动机振动的方法,针对发动机振动通常采用的处理方法。基于多体动力学软件ADAMS,对全地面起重机整车进行了参数化建模,建立了全地面起重机车轴、车身、转向杆系、悬挂系统、轮胎、液压助力油缸等模型,并对转向杆系的优化进行设置。运用ADAMS/Engine建立了某全地面起重机所用的发动机多刚体系统模型,通过建立发动机支撑模型,对发动机振动进行仿真分析。针对发动机总成进行振动分析,分别分析了发动机悬置系统的共振频率和模态,并进行了原车和改进后的对比分析。对发动机的悬置元件进行了试验测试,并对发动机总成的振动进行了测试,测试结果和试验结果很一致,证明了仿真的正确性。
[Abstract]:In this paper, the vibration of an all ground crane vehicle is analyzed in view of the abnormal jitter of the vehicle in use and even the failure of auxiliary support of the gearbox and the failure of the support of the engine.In this paper, the causes and main classification of engine vibration of all-ground crane are analyzed, as well as the commonly used methods to study engine vibration, as well as the usual methods to deal with engine vibration.And the optimization of steering rod system is set.The engine multi-rigid-body system model for an all-ground crane is established by using ADAMS/Engine. The engine vibration is simulated and analyzed by establishing the engine support model.The resonance frequency and mode of engine mount system are analyzed by vibration analysis of engine assembly, and the comparison between the original vehicle and the improved system is carried out.The engine mounting components are tested and the vibration of the engine assembly is tested. The test results are in good agreement with the test results, which proves the correctness of the simulation.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH21

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