1·To grasp the stress and displacement distribution of the cutter, to avoid the happening of sympathetic vibration, carrying out modality analysis and dynamic design to the cutter are very important.
为了掌握采煤机截齿工作时应力、位移的分布情况，避免共振现象的发生，对它进行模态分析和动态设计具有重要意义。
2·Based on the CAM set, the article points out the common problems which are often ignored while designing it, such as unyieldingness and sympathetic vibration.
以凸轮机构为背景，指出当前设计凸轮机构时容易忽略凸轮机构的刚度、共振等问题。
3·With Dynamical modal analysis of electron gun by use of ANSYS software, we can get the inherent frequency and vibration model, which can avoid sympathetic vibration.
利用ANSYS软件对电子枪进行动力学模态分析可以得到电子枪的固有频率和振型。从而在结构设计上避免共振。