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自動車 懸架系의 Parameter 變化에 대한 性能評價
李圭泰,崔秉起 조선대학교 동력자원연구소 1992 動力資源硏究所誌 Vol.14 No.1
A linear quarter model of a vehicle suspension system is builted simulated.Especially the so called sensitivity analysis is done in order to snow its applicability to design problems,and sensitivity function is determined in the frequency domain, The change of frequency response function is predicted, which depends on the design parameter variation and the property is verified by computer simulation. Typical performance measures, namely, sprung mass acceleration, suspension deflection, and tire defiection are examined, The vehicle model is analyzed for its performance sensitivity as a function of the system's feedback gains. The varied feedback gains are selected as the spring and damping coefficient. Frequency response,RMS response, and prformance index of the performance evaluation variables are considered and response surfaces of three-dimensional and contour plot are formed to examine output sensitivity to suspension feedback. Performance trade-offs over the entire frequency spectrum are identified from the FRF, and that between ride quality and handling charateristics are exa mined from the RMS responses.