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The Handling Stability Research of an Independent Front Macpherson Suspension Car

Author: FangFei
Tutor: HeYaoHua
School: Wuhan University of Technology
Course: Vehicle Engineering
Keywords: Vehicle suspension Modeling ADAMS Handling and stability
CLC: U463.33
Type: Master's thesis
Year: 2006
Downloads: 688
Quote: 13
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Abstract


Since the 1980s , the car as a vital transport increasingly prominent position in the field of transportation and people 's daily life . Domestic and international auto market competition becomes fiercer than ever before , car security , ride comfort , handling and stability have become increasingly demanding . The vehicle suspension system is the most critical subsystem of the dynamic characteristics of the vehicle , which are determined by the suspension vehicle wheel alignment parameters on vehicle handling has a direct impact on the dynamic characteristics . Suspension kinematics / dynamics simulation analysis occupies an important position in the design and development of automotive suspension system . The vehicle suspension system is a complex multi-body system , a very complex relationship between its member sports , which has brought many difficulties to the analysis of the various characteristics of the suspension through the traditional method of calculation . This paper , mechanical CAD design , virtual prototype simulation technology of the former title , proposed the use of virtual prototype simulation software ADAMS CAR module to analyze and optimize the design of the vehicle suspension . First , according to the relative motion between the various components of the suspension and the parameters of the various components in the 3D CAD model ADAMS \\ CAR establish a sedan McPherson front suspension , plus on the road surface excitation, analysis of suspension parameters in car the variation in the traveling . Then ADAMS \\ Insight suspension model structural optimization, to obtain the optimal solution of the suspension system structure . Based on the above , including front and rear suspension , engine , steering system, front and rear tires , including vehicle virtual prototype simulation model , and in accordance with our current vehicle manipulate the stability test standard GB/T6323.1-94 to GB / of T6323.6-94 requirements , the preparation of the drive control for vehicle handling and stability simulation analysis files (Driver control files , abbreviated as DCF) and drive control data file ( driver control data Files , abbreviated as DCD ) were steering wheel angle step input test , turning back to the positive test , steady-state rotation trials , hunting tests and steering lightweight test vehicle handling and stability test simulation analysis and reference GB/T13047-91 \and evaluation methods were evaluated by scoring the handling and stability of the cars .

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CLC: > Transportation > Road transport > Automotive Engineering > Automotive structural components > Travel System > Suspension
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