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以中国散裂中子源(China Spallation Neutron Source,CSNS)/快循环同步加速器(Rapid Cycling Synchrotron,RCS)主准直器为对象,研究从合肥某工厂通过公路运输到位于东莞的CSNS装置地运输过程中的振动情况。整个主准直器装置中,最薄弱的部位是刮束器的薄钨片,其质地硬而脆,运输途中的振动可能导致其发生破坏。考虑到装置造价高,制造周期长,现场无条件修复,对运输过程的安全进行评估很有必要。文中运用Matlab/Simulink建立卡车模型,仿真运输过程得到振动信号,通过试验测得实际运输过程的振动信号,将两种情况下获得的振动激励加载到ANSYS中的主准直器模型中,由此获得薄钨片在虚拟运输过程中因振动而产生的应力。通过仿真和试验,验证了仿真模型的有效性,得到了安全运输的指导车速。对加速器设备的运输振动安全评估具有实际意义。
The main collimator of China Spallation Neutron Source (CSNS) / Rapid Cycling Synchrotron (RCS) was studied for transportation from a factory in Hefei via a road to the CSNS plant located in Dongguan Vibration during the process. The main collimator unit, the weakest part is a thin beam of tungsten carbide scraper, its hard and brittle texture, the transport of vibration may cause damage. Taking into account the high cost of the device, the long manufacturing cycle, site unconditional repair, the safety of the transport process is necessary to assess. In this paper, the truck model is established by Matlab / Simulink, the vibration signal is obtained through the simulation of the transport process, the vibration signal of the actual transport process is measured through experiments, and the vibration excitation obtained in the two cases is loaded into the main collimator model in ANSYS. Obtain thin tungsten chips in the virtual transport due to vibration and stress. Through simulation and experiment, the validity of the simulation model is verified and the guide speed of safe transportation is obtained. It is of practical significance to assess the transportation vibration safety of accelerator equipment.