TWZ-1500卧式振动离心机产品开发与动力学分析

发布时间：2018-03-10 08:37

本文选题：卧式振动离心机　切入点：振动理论　出处：《浙江大学》2012年硕士论文　论文类型：学位论文

【摘要】：本文围绕TWZ-1500卧式振动离心机产品开发与动力学分析展开研究。给出了TWZ-1500卧式振动离心机的技术性能,对卧式式振动离心机的工作原理和物料运动进行了分析,重点阐述了卧式振动离心机的工作原理和运动学参数及工艺参数。设计了该离心机的结构并利用三维结构设计软件Solidedge建立了整机三维实体模型。建立了TWZ-1500卧式振动离心机的理论振动模型。采用解析方法求解了TWZ-1500卧式振动离心机受迫简谐振动,并利用MATLAB编程分析了两级振动体的不同质量比、刚度比、阻尼比对两级振动体振幅的影响。得出以下结论：在设计TWZ-1500卧式振动离心机时一级振动体与二级振动体的质量比应取较大值,且应该通过增大m1增大质量比；刚度比应取较大值,且应该通过增大k1增大刚度比；阻尼比应取较小值,且应该通过减小ρ1减小阻尼比,这样才能使二级振动体的振幅满足要求而一级振动体的振幅很小。进行了TWZ-1500卧式振动离心机的动力学分析。结合复杂结构有限元建模时几何模型简化、网格划分、连接关系建模、约束与载荷建模等相关内容的阐述,建立了TWZ-1500卧式振动离心机的有限元模型。对TWZ-1500卧式振动离心机进行了模态分析,得出TWZ-1500卧式振动离心机的理想工作频率是24.58HZ。由振动电机的参数知,振动电机激振频率为24.33HZ,说明振动电机的选取较为合理。对TWZ-1500卧式振动离心机进行谐振分析,整机谐振分析结果表明,其一、二级振动体的振幅与工程样机试验结果十分吻合,说明理论分析结果正确,振动值达到设计目标,该机结构设计较为合理。
[Abstract]:In this paper, the product development and dynamic analysis of TWZ-1500 horizontal vibration centrifuge are studied. The technical performance of TWZ-1500 horizontal vibration centrifuge is given, and the working principle and material movement of horizontal vibration centrifuge are analyzed. The working principle, kinematics parameters and technological parameters of horizontal vibration centrifuge are expounded in detail. The structure of the centrifuge is designed and the 3D solid model of the machine is established by using 3D structure design software Solidedge. The theoretical vibration model of TWZ-1500 horizontal vibration centrifuge is established, the forced harmonic vibration of TWZ-1500 horizontal vibration centrifuge is solved by analytical method, and the different mass ratio and stiffness ratio of the two stage vibrating body are analyzed by MATLAB programming. The effect of damping ratio on the amplitude of two-stage vibrating body. The following conclusions are drawn: in designing TWZ-1500 horizontal vibration centrifuge, the mass ratio of the first stage vibration body to the second stage vibration body should be larger, and the mass ratio should be increased by increasing M1; The stiffness ratio should be larger, and the stiffness ratio should be increased by increasing k1, and the damping ratio should be smaller, and the damping ratio should be reduced by decreasing 蟻 1. Only in this way, the amplitude of the secondary vibrator can meet the requirements and the amplitude of the first-order vibrator will be very small. The dynamic analysis of TWZ-1500 horizontal vibration centrifuge is carried out, and the related contents such as geometric model simplification, mesh division, connection relation modeling, constraint and load modeling, etc., are described in combination with finite element modeling of complex structures. The finite element model of TWZ-1500 horizontal vibration centrifuge is established. The modal analysis of TWZ-1500 horizontal vibration centrifuge is carried out, and the ideal working frequency of TWZ-1500 horizontal vibration centrifuge is obtained. The vibration frequency of vibration motor is 24.33HZ, which shows that the selection of vibration motor is reasonable. The resonance analysis of TWZ-1500 horizontal vibration centrifuge shows that, first, the amplitude of the second stage vibration body is in good agreement with the experimental results of engineering prototype. It shows that the theoretical analysis result is correct, the vibration value reaches the design goal, and the structure design of the machine is more reasonable.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH113

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