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为了适应机床向高精度,高自动化及高柔性发展,除了要求机床重量轻,成本低、使用方便和具有良好的工艺可能性外,对其动态性能的要求也越来越高。因为它直接影响机床的加工质量和切削效率。机床的动态性能主要是指它抵抗振动的能力。对机床进行动力分析和动态设计,使机床具有良好的动态性能,也即把机床的振动量控制在满足加工质量的允许范围之内,使机床在额定功率范围内不发生切削自激振动,这是机床动力学的主要任务。
In order to adapt to the high precision, high automation and high flexibility of the machine tool, in addition to requiring the machine to be light weight, low cost, easy to use and good processability, its dynamic performance requirements are also getting higher and higher. Because it directly affects the machine tooling quality and cutting efficiency. Dynamic performance of the machine mainly refers to its ability to resist vibration. The dynamic analysis and dynamic design of the machine tool, the machine has a good dynamic performance, that is, the vibration control of the machine to meet the processing quality within the allowable range, the machine does not occur in the rated power range cutting self-excited vibration, which Is the main task of machine dynamics.