FESTO液压系统振动特性的研究

发布时间：2018-01-15 18:23

本文关键词：FESTO液压系统振动特性的研究　出处：《北京林业大学》2011年硕士论文　论文类型：学位论文

【摘要】：液压系统振动是普遍存在的现象。振动不仅影响相关设备的正常运行,还会产生噪声污染。本课题的研究对象是实验室内使用的FESTO教学液压系统。这个系统的液压泵站直接安装在实验室水磨石地面上,工作时会产生较大的振动和噪声,严重影响其他实验室和办公室的工作,因此很有必要对它的振动特性进行研究,并在此基础上采取合适的隔振减振措施。相关研究表明,液压系统的振动主要包括机械结构的振动和液体介质工作产生的振动两个方面。根据实验室液压系统的振动情况,确定了FESTO液压系统的振动以机械结构振动为主,而液体介质产生的振动相对较弱。研究表明,FESTO液压系统的主要振动形式是受到简谐力激励而产生的线性受迫振动,论文建立了液压系统的单自由度简谐受迫振动力学模型,运用LabVIEW8.5软件设计了振动测试程序,选用相应的测试设备,对系统进行了振动特性测试,并做了频谱等分析。在测试结果的基础上设计了橡胶隔振器,用于液压系统的隔振减振处理,同时对橡胶隔振器性能参数进行了分析计算。通过对比液压系统隔振前后的振动情况和噪声水平,证明橡胶隔振器具有一定的隔振效果,振动和噪声有较大幅度的降低,对相邻实验室和办公室已经没有太大影响。
[Abstract]:The vibration of hydraulic system is a common phenomenon. Vibration not only affects the normal operation of related equipment. The research object of this subject is the FESTO teaching hydraulic system which is used in the laboratory. The hydraulic pump station of this system is installed directly on the terrazzo ground of the laboratory. It is necessary to study the vibration characteristics of other laboratories and offices because of the large vibration and noise. On this basis, appropriate vibration isolation measures are taken. The vibration of hydraulic system mainly includes two aspects: the vibration of mechanical structure and the vibration caused by the working of liquid medium. According to the vibration of hydraulic system in laboratory. It is determined that the vibration of FESTO hydraulic system is mainly mechanical structure vibration, but the vibration produced by liquid medium is relatively weak. The research shows that the main vibration form of FESTO hydraulic system is the linear forced vibration caused by simple harmonic force. The dynamic model of single degree of freedom harmonic forced vibration of hydraulic system is established in this paper. The vibration test program is designed by using LabVIEW8.5 software, and the vibration characteristic of the system is tested by selecting the corresponding test equipment. On the basis of the test results, the rubber vibration isolator is designed, which is used for the vibration isolation and vibration reduction of hydraulic system, and the performance parameters of the rubber isolator are analyzed and calculated. By comparing the vibration and noise level of the hydraulic system before and after vibration isolation, it is proved that the rubber vibration isolator has a certain isolation effect, and the vibration and noise are greatly reduced. It has had little impact on adjacent laboratories and offices.
【学位授予单位】：北京林业大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH137

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