救护车担架-卧位人体系统振动的最优主动控制研究

A Study on Active Vibration Control for Ambulance Stretchersupine body System

本文采用频域计权形式二次型性能指标函数，研究了救护车担架－卧位人体系统振动的最优主动控制问题。研究结果表明，与传统的被动隔振系统相比，担架主动隔振系统能更有效地降低担架－卧位人体系统垂直振动和纵向角振动加速度均方根值；在性能指标中采用与频率相关的计权矩阵，可进一步降低系统在相应频带的振动。本文为改善救护车卧姿伤病员的运送平顺性提供了一个新的思路和方法。

The objective of this study is to develop an active vibration isolation system for ambulance stretcher using frequencyshaped cost functional.It is shown that the proposed active ambulance stretcher suspension is more effective in reduction of the vertical and pitch vibration acceleration of stretchersupine body system in contrast to the conventional passive one.And the incorporation of frequencydependent weighting matrices allows one to emphasize the specific variables related to the vibrations of specific bands of frequencies.This study provides a new conception and method to improve the ride comfort of ambulance supine wounded or sick personnel.