Vibration analysis of CSNS/RCS primary collimator in transportation based on ANSYS & Matlab

HE Pengfei; KANG Ling; YU Jiebing; LIU Renhong; WANG Haijing; WU Lei; QU Huamin

doi:10.11889/j.0253-3219.2014.hjs.37.070502

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Vibration analysis of CSNS/RCS primary collimator in transportation based on ANSYS & Matlab

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- Vibration analysis of CSNS/RCS primary collimator in transportation based on ANSYS & Matlab
- NUCLEAR TECHNIQUES Vol. 37, Issue 7, Article number: 070502(2014)
- 作者机构：
  
  1. 中国科学院高能物理研究所加速器中心,北京,100049
  2. 中国科学院大学,北京,100049
- 作者简介：
- 基金信息：
- DOI：10.11889/j.0253-3219.2014.hjs.37.070502
  CLC：
- Published：07 July 2014
- 稿件说明：
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HE Pengfei, KANG Ling, YU Jiebing, et al. Vibration analysis of CSNS/RCS primary collimator in transportation based on ANSYS & Matlab[J]. Nuclear techniques, 2014, 37(7): 070502
DOI：

HE Pengfei, KANG Ling, YU Jiebing, et al. Vibration analysis of CSNS/RCS primary collimator in transportation based on ANSYS & Matlab[J]. Nuclear techniques, 2014, 37(7): 070502 DOI： 10.11889/j.0253-3219.2014.hjs.37.070502.

摘要

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。

Abstract

Background & Purpose: The China Spallation Neutron Source/Rapid Cycling Synchrotron (CSNS/RCS) primary collimator is to be transported from Hefei to Dongguan through truck transportation for more than 1200-km distance

and the vibration during the process is pre-studied. The brittle tungsten scraper slice is the weakest point of the machine

and it could break down due to the vibration during the transportation. Considering its cost is more than one million yuan (RMB) and manufacturing time is longer than one year

it is of extremely high necessity to evaluate the safety of its transportation process. Methods: In this paper

a virtual truck model is established using Matlab/Simulink to simulate the transit process

and an experiment that collects the vibration data of a real truck transportation process is conducted. Then the vibration excitation data is imported into ANSYS Workbench to study the stress of the scraper slice caused by vibration. Results & Conclusion: The validity of the two-degree-of-freedom truck model is verified

and a guidance of truck velocity is given. This research will benefit the safety transportation of other high energy physics machines.Cited

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