卫生列车上的APD模块冲击及随机振动分析  

Shock and random vibration fatigue analysis of APD module on sanitary train

作　　者：罗纪聪 赵景宏 张昀 王炜 李敬东 LUO Ji-cong;ZHAO Jing-hong;ZHANG Yun;WANG Wei;LI Jing-dong(Department of Nephrology,the Second Affiliated Hospital of Army Medical University,Chongqing 400037,China;Medical Service Office,the Second Affiliated Hospital of Army Medical University,Chongqing 400037,China;The 716th Research Institute,China State Shipbuilding Corporation Limited,Lianyungang 222061,Jiangsu Province,China)

机构地区：[1]陆军军医大学第二附属医院肾内科,重庆400037 [2]陆军军医大学第二附属医院卫勤办,重庆400037 [3]中国船舶集团有限公司第七一六研究所,江苏连云港222061

出　　处：《医疗卫生装备》2023年第9期38-41,共4页Chinese Medical Equipment Journal

基　　金：全军医学科技青年培训计划项目(19QNP013);陆军军医大学第二附属医院临床科研课题(2019YLC06)。

摘　　要：目的:探讨卫生列车在运行途中冲击和振动对ICU车厢的自动化腹膜透析(automatic peritoneal dialysis,APD)模块的影响。方法:以卫生列车ICU车厢的APD模块为研究对象,根据IEC 61373:2010《铁路应用铁道车辆设备冲击和振动试验》,利用ANSYS软件对卫生列车上的APD模块进行模态分析和谐响应分析,校核整个模块结构的强度、刚度和稳定性,并对薄弱环节进行优化处理。根据IEC 61373:2010选取功率谱密度作为激励,通过随机振动试验和设备冲击试验验证模块设计的合理性。结果:模态分析结果显示,优化后APD模块的固定支架简化模型的固有频率整体提高,第3阶、第4阶、第5阶、第6阶的固有频率分别为156.45、166.35、268.85、285.45 Hz;谐响应分析结果显示,APD模块的减振平台振幅较低,不超过2.2 mm。冲击及随机振动试验结果显示,APD模块未发现明显的结构变形和开裂现象,机械性能和外观正常。结论:APD模块设计合理,可在卫生列车实车ICU车厢加装使用。Objective To investigate the effects of shock and vibration on the automated peritoneal dialysis(APD)module in the ICU compartment of the sanitary train during operation.Methods ANSYS-based modal analysis and harmonious response analysis of the APD module on the sanitary train were carried out according to IEC 61373:2010"Railway applications—Rolling stock equipment—Shock and vibration tests"so as to calibrate the strength,stiffness and stability of the whole module structure,and to optimize the weak links.The power spectral density was selected as the excitation according to IEC 61373:2010,and the rationality of the module design was verified by random vibration test and equipment impact test.Results Modal analysis results showed that the natural frequency of the simplified model of the optimized APD fixed support was improved overall,and the second to sixth order frequencies were 156.45,166.35,268.85 and 285.45 Hz,respectively.Harmonic response analysis indicated that the damping platform of the APD module had a low amplitude not more than 2.2 mm.The results of impact and random vibration experiments proved that there were no obvious structural deformation and cracking phenomenon and abnormal mechanical properties and appearance found in the APD module.Conclusion The APD module is well-designed and can be embedded into the ICU compartment of the sanitary train.

关 键 词：卫生列车 APD APD模块 随机振动 冲击 

分 类 号：R318.6[医药卫生—生物医学工程] TH789[医药卫生—基础医学]