Mechanical Characteristics Study On Horizontal Swing Arm Of Suspension System

As a crucial the design of the vehicle, the kinematics and compliance of the suspension system in a vehicle become hot focuses in the field of traditional dynamic study in China and oversea. This feature of the suspension system have directly influence on the vehicle’s raid comfort, riding performance and handing stability. However, the performance of important component decides the performance of the suspension system. Therefore, performance of each suspension’s component becomes hot issues in this field. Horizontal swing arm is one of the significant suspension’s components. As power transmission component, study of the mechanics characteristic of horizontal swing arm is particularly important.The modeling and simulation of suspension system based on are realized with CAD and CAE. Firstly, 3D modeling of suspension system is established based on basicdata of vehicle. Then the coupled model of suspension system with ADAMS/Car is built. Hard points location and then systematically analyze kinematics characteristics of suspension system in the process of the wheel jump and compliance performance of various working conditions is determined. Simulationdata of K&C test is collected and analyze. Slightly change parameters of suspension system. Lastly, obtain the force situation of horizontal swing arm through integral analysis of suspension system. In allusion to various working condition compute rigidity and strength of frontsuspension’s horizontal swing arm. Check computation with HyperView and analyze the design’s rationalization of the horizontal swing arm.Horizontal swing arm of Mcphersonsuspension is one of the significant safetycomponents. It is necessary to analyze the rigidity and strength. Evaluate and refit the change of toe-in angle, camber angle, caster angle, wheel track and wheel load basing on K&C test. And make the load information of horizontal swing arm more accurate. Nastran is used to check the structural rigidity by FEA, obtaining Displacement Fringe. Combining with principle of inertial release, finite element analyze strength of horizontal swing arm in 6 typical working conditions, including maximum acceleration, maximum braking, maximum rear braking, vertical, turning and lateral collision. Then the stress nephogram can be gotten. The results indicate that the stiffness characteristic and strength characteristics of this suspension’s horizontal swing arm meet the design requirements of the vehicle.