Stability Robustness of Optimal Active Uncertain Suspensions Incorporating Human Sensitivity to Vibration

考慮人體對振動反應之最佳主動式不定懸架系統的強健穩定性分析

陳信宏(Shinn-Horng Chen) ； 周至宏(Jyh-Horng Chou)

《中華民國振動與噪音工程學會論文集》 1998 (1998/05) Pp. 51-60

https://doi.org/10.30028/CSSVANNUAL.199805.0051

摘要

本論文主要是結合人體在不同頻率下對振動加速度的靈敏度，而使用頻率成形線性二次高斯(LQG)方法來設計主動式懸架系統。對頻率成形LQG主動式懸架系統存在干擾／雜訊不確定性和線性時變參數擾動的情況下，本論文也提出二個新的充分條件以分析系統的強健穩定性。此充分條件能提供汽車設計者在設計具有強健性質的頻率成形LQG主動式懸架系統方面，有一定量的量測指標。並以一例示範所提出新的充分準則的應用性。

關鍵字

主動式懸架系統 ； 強健性 ； 人體對振動的反應 ； 最佳控制

並列摘要

In this paper, the human sensitivity to vibration acceleration at various frequencies is incorporated in the design of active suspension by using the frequency-shaped linear-quadratic-Gaussian (LQG) method. And two new sufficient conditions of stability robustness for the frequency-shaped LQG active suspension systems subject to disturbance/noise uncertainties and linear time-varying parameter perturbations arc also presented in this paper. The proposed new sufficient conditions provide a quantitative measure for automotive designers to design the frequency-shaped LQG active suspension systems with robustness properties. An illustrated example is given to demonstrate the applicability of the proposed new sufficient criteria.