Abstract
KEYWORDS-propshaft,cardan universal joint,transfer path,front axle rigid body mode,sensitility study
ABSTRACT
Research and/or Engineering Questions/Objective
propshaft w/cardan universal joint is a major source of vehicle NVH excitation,leading to booming or vibration,therefore,it is demanding to investigate/summarize the flow chart,w.r.t sourec,path,response,to aid troubleshooting/development.the goal of this paper is, a)analyze the mechanism/measures on propshaft w/cardan universal joint induced vehicle NVH,and summarize the systematic flow chart,b)solve a 4x4 minivan steering wheel vibration issue,by abovementioned technology,and implement sensitivity study to find out critical parameters.
Methodology
the transfer path model is harnessed, regarding the propshaft w/cardan universal joint induced vehicle NVH,to investigate the mechanism/measures,in the mean time,a steering wheel vibration issue in a 4X4 mini van during ramp-up is exemplified for applying the summarized flow chart to fix issue, as well as delving into the steering wheel vibration and front axle rigid body mode sensibility to critical parameter.
Result
s the mechanism/measures on propshaft w/ cardan universal joint induced NVH is clarified,and the flow chart is made. a 4x4 mini van steering wheel vibration during ramp-up is solved,and sensitivity study is implemented to find out critical parameters.
Limitations of this study
The testing technique is extensively employed in this study,while,no CAE involved,thus,CAE,possibly multibody dynamics,would be next step adopted,to simulate the propshaft w/cardan universal joint induced vehicle NVH.
What does the paper offer that is new in the field including in comparison to other work by the authors?
Holistic flow chart,in terms of source,path,response,is made,regarding propshaft w/ cardan universal joint induced vehicle NVH.critical parameter is pinpointed on front axle rigid body modes,hence the steering wheel vibration
Conclusions
1. analyze the mechanism/measure on propshaft w/ cardan universal joint induced vehicle NVH,and the flow chart/measures is summarized to aid troubleshooting and NVH development
2. A 4x4 minivan steering wheel vibration is solved by aforementioned technique
3. Critical parameter is pinpointed on front axle rigid body modes,hence the steering wheel vibration