悬挂式动力减振频率比分毕业论文.docxVIP

天津理工大学2015届本科毕业论文 悬挂式动力减振频率比分析 摘 要 论文主要是对动力减振器和主结构的固有频率及模态进行了研究。在机械加工过程中，振动常常伴随在加工中的每一道工序，机床的振动会对零件的精度和表面质量有重要影响，并且对刀具的耐用度和机床的使用寿命也有很大的影响，甚至会损害人体健康，对人体器官产生一定危害。减振器是利用有效的控制振动，来对产生的危害起到抵消的作用。这次毕业设计是应用ProE建立了主结构及动力减振器的实体模型，采用有限元分析软件ANSYS，分析悬挂式动力减振器及主结构的模态和固有频率。第一步进行的是对主结构的模态分析，模态分析可以确定主结构的固有频率和模态；模态分析是进行减振分析和减振设计的前提。本课题是应用有限元分析软件ANSYS首先对主结构进行模态分析，提取结构的前10阶模态和固有频率。然后再给主结构配上减振器，最后再对装配有动力减振器的装配体进行固有频率、和模态分析，该研究结果为后续减振器减振效果的评估和减振设计提供依据。 关键字：动力减振器，减振性能，ANSYS，模态分析 Analysis of the frequency ratio of suspension power shock absorber ABSTRACT This thesis mainly studies the dynamic vibration absorber vibration performance research of assembly. Vibration in machining process, often accompany in each working procedure, in the process of the vibration of the machine tool parts for precision and surface quality has important influence, and the service life of the durability of the cutting tool and machine tool also has a great influence, even can damage human body health, has certain harm to human body organs. Can effectively control the vibration and shock absorber is used to harm to generate offset. This topic the corresponding function of finite element analysis software ANSYS to analyze the vibration reduction mechanism of dynamic vibration absorber. First is the modal analysis, modal analysis, the various structure of assembly can be determined or natural frequency and modal of the machine parts; May also be other more detailed dynamic analysis of the starting point, through ANSYS modal analysis is only linear analysis and all other nonlinear are ignored. This topic is for assembly modal analysis in ANSYS software, contains the structure of the first 10 order modal. And then to the shock absorber assembly body assembly, the assembly has a dynamic vibration absorber assembly for the performance of the natural frequencies, modal research. Key Words: Dynamic Absorber, Rectangular Plates, The Finite Element Method, ANSYS , Modal Analysis 目 录 TOC \o 1-3 \h \u  HYPERLINK \l