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国际刊号:1004-6801
国内刊号:32-1361/V
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多杆隔冲装置动力学特性分析
Analysis of the Dynamic Characteristics of the Multi‑rod Impact Isolation Device
  
DOI:10.16450/j.cnki.issn.1004-6801.2022.03.018
中文关键词:  隔冲装置  动力学模型  螺旋理论  ADAMS仿真  动力学响应  隔离率
英文关键词:impact isolation device  dynamic model  screw theory  automatic dynamic analysis of mechanical system (ADAMS) simulation  dynamic response  impact isolation rate
基金项目:国家自然科学基金资助项目(51705337)
作者单位
刘慧珍 (沈阳工业大学机械工程学院 沈阳110870) 
孟宪松 (沈阳工业大学机械工程学院 沈阳110870) 
梁松 (沈阳工业大学机械工程学院 沈阳110870) 
闫明 (沈阳工业大学机械工程学院 沈阳110870) 
摘要点击次数: 19
全文下载次数: 25
中文摘要:
      为提高舰载设备服役期间的抗冲击性能,须在舰船和舰载设备之间安装隔冲装置。首先,以多杆并联构成的隔冲装置为研究对象,基于坐标变换矩阵,根据螺旋理论和多维隔冲的基本原理建立多杆隔冲装置动力学模型;其次,应用正则模态矩阵变换思想求解动力学方程,获得多杆隔冲装置自由响应和受迫响应解析解,并与机械系统动力学自动分析(automatic dynamic analysis of mechanical systems,简称ADAMS)的仿真响应结果进行对比;最后,对多杆隔冲装置进行落锤式冲击试验。结果表明:多杆隔冲装置能够有效隔离标准规范下的强冲击载荷,横向、纵向冲击隔离率达到97.79%,垂向冲击隔离率达到95.34%;仿真与理论结果契合度高,理论模型具有有效性;试验与仿真响应差值在3%左右,冲击隔离率随冲击载荷的提高呈增大趋势,装置在强冲击环境下仍具有良好的抗冲击能力。该结果可为多杆隔冲装置隔离舰载设备冲击载荷提供理论参考和数据基础。
英文摘要:
      In order to improve the impact resistance of shipboard equipment in service, it is necessary to install an impact isolation device between the ship and shipboard equipment. For a kind of parallel coupling isolation device composed of multi-rod, Firstly, one dynamic theoretical model is established based on the coordinate transformation matrix by using screw theory and the basic principle of multi-dimensional impact isolation. Then, the regular modal matrix transformation was used to solve the dynamic equation. The analytical solutions of free response and forced response of the multi-rod impact isolation device were obtained, which were compared with the simulation results of ADAMS. Finally, the drop-type impact test was carried out on the multi-rod impact isolation device. The results show that the multi-rod impact isolation device can effectively isolate the strong impact load under the standard specifications. Moreover, the isolation rate of transverse and longitudinal impact is up to 97.79%, and the vertical impact is up to 95.34%. The high agreement between the simulation results and analytical results indicates the validity of the analytical results. The difference between test and simulation response is about 3%, and the impact isolation rate increases with the increase of impact load, indicating that the device still has good impact resistance under strong impact environment. The results provide theoretical reference and data basis for the impact isolation of shipborne equipment by multi rod impact isolation device.
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