盘拉机的动态性能研究
首发时间:2018-07-02
摘要:为了改善倒立式盘拉机的动态性能,提高盘拉机盘拉机的动态性能研究的竞争能力和保障工人的身心利益,通过对比盘拉机的计算模态和实验模态,明确振动发生的区域和位置,有利于改进盘拉机的结构,进一步提高盘拉机的性能。本文中两种方法的固有频率误差在6%以内,模态振型基本相同。得到引起共振的原因在于第1阶固有频率与激励频率发生共振,因此只需提高盘拉机的第1阶固有频率即可有效减小振动。模态分析与实验也为进一步的优化工作指明目标。
关键词: 机械制造及其自动化 盘拉机 振动 模态实验 有限元模拟
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Study on dynamic performance of the disk floating plug drawing equipment
Abstract:In this paper, in order to improve the dynamic performance of the disk floating plug drawing equipment, improve the competitive ability of the equipment and protect the workers\' physical and mental interests, the region and position of the vibration were clearly defined by comparing the calculation mode and the experimental mode of the equipment, which is beneficial to the improvement of the structure of the equipment and the performance of the equipment too. The error of natural frequencies is less than 6%, and the modal shapes are basically the same. The cause of the resonance is that the natural frequency of the first order resonances was situated in the excitation frequency random. The vibration can be reduced by only increasing the first natural frequency of the equipment, which is a useful target for further optimization work.
Keywords: Mechanical manufacture and Automation Major disk floating plug drawing equipment vibration modal experiment finite elements simulation
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