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在研发某型号盾构管片拼装机的过程中,为了避免管片拼装机关键部件在运动过程中受力过大断裂造成重大工程事故,应用多体动力学仿真软件,建立整个管片拼装机的动力学仿真模型,对管片拼装机不同安装位置的管片拼装过程进行动力学研究。仿真得到了整个动作过程中关键部件举重钳-扼架在不同工况下的动态载荷与响应特性,并以得到的扼架铰接处的最大动载为边界条件,建立静力学模型。利用Ansys-Workbench对扼架最大受力情况进行有限元分析,分析得到了最大应力为123.24 MPa,确保了管片拼装机扼架部分的强度,仿真分析结果最后通过现场测试得到了验证。
In the development of a model shield pipe assembly machine in the process, in order to avoid the key components of the pipe assembly machine stress during the exercise too much rupture caused major accidents, the application of multi-body dynamics simulation software, the establishment of the entire pipe assembly machine The dynamic simulation model is used to study the dynamics of the segment assembling process in different installation positions of the segment assembling machine. The dynamic load and response characteristics of the weight-pliers-yoke under different working conditions were obtained through simulation. The maximum dynamic loads of the yoke joints were taken as the boundary conditions to establish the static model. Ansys-Workbench was used to analyze the maximum stress of the yoke. The maximum stress was 123.24 MPa, which ensured the strength of the yawing part of the pipe-jacking machine. The simulation results were verified by on-site testing.