卧姿人体垂直振动模型的研究

对卧姿人体垂直振动模型进行研究,计算和评价卧姿人体承受振动的舒适性,对于卧铺及救护车辆的设计有参考及指导意义。文中利用动力学手段,采用机械阻抗相等的方法进行模拟,将卧姿人体等效为由质量、弹簧、阻尼等机械元件组成的等效系统。着重考虑头部、胸部、腹部等对振动冲击的敏感部位,对5名受试者进行了卧姿自由、约束两种状态下的试验,最后利用所得的加速度阻抗特性曲线对模型进行了验证。

Study on the vertical vibrating model of decumbent body and cal culating and evaluating the com fortabili-ty of decumbent body under vibrating is the reference and guideline for berth and ambulance design.In the paper,th e de-cum bent body is substituted for by one mass -spring -damping equivalen t system with the equal me chan ic impedance method.Laying stress on points se nsitive to vibration,such as head,chest,stomach,etc.,tests under free and con strained conditions are done with5subjects.The model is verified with the acceleration-impedance characteristic curve from the tests.