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工程设计学报
工程设计学报  2018, Vol. 25 Issue (5): 532-538    DOI: 10.3785/j.issn.1006-754X.2018.05.006
创新设计     
新型车载医疗救护隔振平台设计及仿真
魏春雨, 蔡月, 刘明贺, 张琦, 贾乾忠
沈阳建筑大学 机械工程学院, 辽宁 沈阳 110168
Design and simulation of new vibration isolation platform for vehicle medical rescue
WEI Chun-yu, CAI Yue, LIU Ming-he, ZHANG Qi, JIA Qian-zhong
School of Mechanical Engineering, Shenyang Jianzhu University, Shenyang 110168, China
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摘要：

车载医疗救护隔振平台是一种以车辆为载体的伤病员专用救护装备。为了最大程度地避免伤病员在运送中因车辆振动而造成的二次伤害，获得最佳减振效果，设计了一款新型车载医疗救护隔振平台，它具有大长宽比、多层串联的结构特点。为了获得该平台的关键隔振参数，建立了隔振平台的物理模型，并采用基于分析力学的拉格朗日法建立了平台的状态方程，应用MATLAB软件对在典型激励作用下的隔振参数进行了优化，得到了最优的平台减振弹簧刚度和阻尼。最后，为了研究该新型隔振平台在车辆运行过程中的减振效果，建立了基于被动悬架的隔振平台全系统动力学模型，并采用ADAMS软件仿真分析了在斜坡路面和正弦起伏路面两种典型激励下的隔振平台的输出响应。结果表明，该隔振平台能够极大地衰减来自地面的冲击和振动，尤其对于恶劣路况，其减振效果更佳。该隔振平台结构及参数设计符合工程实际，所采用的优化方法和全系统建模及仿真方法正确、有效。
关键词： 隔振平台;  参数优化;  被动悬架;  全系统动力学模型    
Abstract:

Vibration isolation platform for vehicle medical rescue is a kind of special ambulance equipment for the sick and wounded with vehicle as the carrier. In order to avoid the secondary injury caused by vehicle vibration during transportation to the greatest extent and obtain the best damping effect, a new type of vibration isolation platform for vehicle medical rescue was designed, which has the characteristics of large ratio of length to width and multi-layer series connection. Then, to get the key isolation parameters of the platform, the physical model of the platform was established, and the state equation of the platform was established by Lagrange method based on analytical mechanics. The vibration isolation parameters of the platform were optimized by MATLAB software under typical excitation. The optimal stiffness and damping coefficients of the vibration isolation platform were obtained. Finally, to study the damping effect of vibration isolation platform in the vehicle running process, the whole system dynamics model of vibration isolation platform based on vehicle passive suspension was established, and the output response of vibration isolation platform excited by two typical road surfaces including sloping pavement and sinusoidal undulating pavement, was simulated by ADAMS software. The results showed that the vibration isolation platform could greatly attenuate the impact and vibration from the ground, especially for bad road conditions. The structure and parameter design of the platform conform to the engineering practice, and the adopted optimization method, the modeling and simulation of the whole system are correct and effective.
Key words: vibration isolation platform    parameter optimization    passive suspension    whole system dynamics model
收稿日期: 2018-03-12 出版日期: 2018-10-28
CLC:  TP391.9  
基金资助:

国家自然科学基金资助项目（51705342）
作者简介: 魏春雨(1982-),男,辽宁康平人,副教授,博士,从事特种车辆、机器人学和机电一体化技术研究,E-mail:weiyu001@163.com,https://orcid.org/0000-0002-1550-5322
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引用本文:

魏春雨, 蔡月, 刘明贺, 张琦, 贾乾忠. 新型车载医疗救护隔振平台设计及仿真[J]. 工程设计学报, 2018, 25(5): 532-538.

WEI Chun-yu, CAI Yue, LIU Ming-he, ZHANG Qi, JIA Qian-zhong. Design and simulation of new vibration isolation platform for vehicle medical rescue[J]. Chinese Journal of Engineering Design, 2018, 25(5): 532-538.

链接本文:

https://www.zjujournals.com/gcsjxb/CN/10.3785/j.issn.1006-754X.2018.05.006    或    https://www.zjujournals.com/gcsjxb/CN/Y2018/V25/I5/532

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