汽车驾驶员腰椎保护带的振动防护效应测试及其生物力学作用分析

通过对汽车驾驶员腰部振动的测试 ,了解腰椎保护带对振动的防护效应并对其生物力学作用进行分析。以日本产五十铃八吨载重卡车 (TDG72 )为测试车型。在装载六吨货物以三种不同车速 (10、30、6 0 km/ h)行进在柏油公路时 ,分别在佩带和不佩带腰椎保护带的情况下 ,对驾驶员腰椎部位垂直振动和水平纵向振动进行实时测量 (传感器安置于裤腰带和保护带的背外侧 )。结果显示 :1驾驶员腰部振动频率多为 10 Hz以下 ,属低频振动 ;2垂直振动大于水平纵向振动 ;3系腰椎保护带时的振动测量值大于不系腰椎保护带的测量值。由于腰椎保护带改变了脊柱的生物力学和振动特性 ,从而起到了保护腰椎的作用。我们认为它是防治汽车驾驶员腰痛的良好方法之一。

Measure of Vibration Protection Effect of Driver's Corset and Analysis of Its Biomechanical Effect

The purpose of this study was to evaluate the vibration protection and biomechanical effect of driver's corset. The frequencies of vertfical and horizontal vibrations were measured at low back of driver. The vehicle driven was ISUZU truck (loading capacity 8 tons). Vibration of the driver's lumbar back was measured real time with wear corset and without wear corset when the truck loaded with 6 tons was driven at the spead of ten, thirty and sixty kilometers an hour on the asphalt road. The results showed: 1. Vibration frequencies at driver's low back was under 10 Hz. It is a low frequency vibration. 2. The value of vertical vibration was higher than the value of horizontal (back and forth) vibration. 3. The vibration value of wear corset was higher than un-wear corset. These indicate the driver's corset is effective for protecting lumbar spine by means of change in the biomechanical characteristics and the resonace requencies of lumbar spine. So the driver's corset is one of the good methods for preventing the back pain of drivers.