【摘要】 研究微小型擒轮和卡摆的主要制造特性(齿向误差、位置误差)对整个机构的影响.以ANSYS/LS-DYNA软件为工具,对微小型无返回力矩钟表机构中的擒纵机构的冲击过程进行有限元分析,求出齿向误差、位置误差极限,应用隐式-显式连续求解与显式两种求解方法对该机构进行分析,并比较了两种方法结果的差异,对有限元力学模型进行了优选,从而为微小型擒纵机构的设计与装配提供参考依据,保证该微小型机构在高承载、高转速的恶劣工况下的运行可靠性.更多还原

【Abstract】 Studies the main manufacturing characteristics(site error,longitudinal form error of parts) influencing the whole mechanism.The impact process of the escapement mechanism of the microminiature clock mechanism with unturned escapement is simulated through ANSYS/LS-DYNA with the finite element method.The extrema of two errors are obtained and the analytical results compared with the implicit-explicit sequential solution and explicit solution in order to select the more optimizational FEM model,so as to supply reliable basis for the design and assembly of parts,and ensure the reliability of microminiature mechanism under high load and at high rotational speed.更多还原