The Effect of System Variables on the Ride Quality of a Full Tractor and Trailer

系統參數對全聯結車行駛品質之影響

王柏村(Bor-Tsuen Wang) ； 胡伯義(Bor-Yi Hu) ； 陳興忠(Shin-Chun Chen)

《中華民國振動與噪音工程學會論文集》 1997 (1997/05) Pp. 293-302

https://doi.org/10.30028/CSSVANNUAL.199705.0293

摘要

本文旨在應用田口法探討懸吊系統及輪胎彈簧常數和阻尼係數等系統參數對全聯結車行駛品質之影響，行駛品質之定義包括，駕駛座之加速度，貼地性，輪胎受力，懸吊器行程及全聯結車體之加速度。首先簡略介紹全聯結車行駛動態模型(Hu, 1996)，並說明田口法於系統參數對行駛品質影響之應用，結果顯示較軟及低阻尼之懸吊器有較佳之行駛品質，而高阻尼之懸吊可減小懸吊行程，一般而言，較軟及低阻尼輪胎對行駛品質較佳，但是貼地性可能不好。經由田口法之分析，亦可得到系統參數之最佳水準，並可對行駛品質獲得改善。本文提供了基於不同行駛品質的考慮對系統參數選擇之通則。對懸吊系統及輪胎彈簧常數和阻尼係數之選用，將來應進一步作折衷式的最佳化設計。

關鍵字

全聯結車 ； 行駛品質 ； 田口法 ； 懸吊器 ； 輪胎

並列摘要

This paper presents the use of Taguchi method in studying the effects of the system variables, such as the spring constants and damping coefficients of suspensions and tires, on the ride quality of the full tractor and trailer. The ride quality parameters are defined as the vertical acceleration of the driver seat, road holding, dynamic tire force, suspension travel, and the tractor and trailer body acceleration. The dynamic model of the full tractor and trailer (Hu, 1996) is first briefly reviewed. The Taguchi method is then introduced and applied to study the effect of the system variables on the ride quality parameters. Results show that the soft suspension with low damping is expected for better ride quality, except that the higher damping is desired for suspension travels. The soft tire with low damping is generally preffered; however, the road holding may be worst. Based on the analysis of the Taguchi method, the optimum level of factors (system variables) can also be determined and shown to be effective for the improvement of ride quality. This work provides the guidelines on the selection of system variables based on the different ride quality criteria. A compromise design between the constants and damping coefficients of the suspensions and the tires should be further investgated in the future.

並列關鍵字

full tractor and trailer ； ride quality ； Taguchi method ； suspension ； tire