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鉴于常规的质量—弹簧—阻尼系统的特性参数不能适应驾驶员体重的不同而加以调节,本文提出和研究一种可调节等效弹簧刚度和等效阻尼系数的驾驶座位悬架系统。文中论证了它的调节原理,建立了计算其传递系数的数学模型;进行了计算机模拟以预估其减振性能及调节效果;设计和制作了试验样机并进行了台架试验。研究和试验的结果表明,这是一种结构简单而行之有效的调节机构,能够简便地实现座位悬架系统的特性参数与驾驶员不同体重的最佳匹配。文章最后归纳提出了合理选择该悬架系统的特性参数的方法和程序。
In view of the fact that the characteristic parameters of the conventional mass-spring-damper system can not be adjusted to the driver’s body weight, a driver’s seat suspension system with adjustable equivalent spring rate and equivalent damping coefficient is proposed and studied. In this paper, the principle of its regulation is demonstrated, and a mathematical model for calculating its transfer coefficient is established. Computer simulation is conducted to predict the vibration damping performance and the adjusting effect. The prototype is designed and tested and the bench test is carried out. Research and experimental results show that this is a simple structure and effective regulation mechanism, can easily achieve the characteristics of the seat suspension system and the driver of different weights the best match. Finally, the article summarizes the reasonable selection of the suspension system characteristic parameters of the method and program.