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Monday, November 1, 2010

Widening of minibuses before the design and analysis of independent suspension

Suspension is an important part of Hyundai Motor, one of its direct impact on the performance of the car ride comfort and stability. Meanwhile, the suspension is a complex multi-body system, its movement between the components is very complex and difficult to use the traditional method to analyze the various characteristics. Therefore, the use of kinematics and dynamics characteristics simulation of suspension, has very important significance. Taking a minibus longitudinal torsion spring double wishbone front independent suspension for the study, wider track for the enterprise to meet the proposed installation of widening the body, so as to achieve the requirements to meet market demand, the first of the original suspension multi-body system modeling, dynamic simulation analysis, with the front wheel alignment parameters to evaluate the merits of their performance; Secondly, after the suspension of the widening of the two options proposed, which extended the upper and lower arm and the wider before the front axle beam suspension in the original model of multi-body system is improved, again by comparison of simulation results, and ultimately determine the suspension of the widening program extended the upper and lower wishbone; Then, for longer, onprogram under the arm to optimize the design of suspension, the first level of factor sensitivity analysis using two methods to determine the performance impact on the suspension coordinates of key points as design variables, and then select the front wheel alignment and track changes as design goals, and set the standard deviation of the maximum or minimum values for the target, and ultimately achieved by optimizing the design of the suspension relative to a more reasonable arrangement, the front wheel alignment, and track changes in the trend better, change the value also smaller; Finally, a key component of torsion bar suspension re-designed to meet the increased load requirements of suspension after the widening, on this basis, its static strength and fatigue strength of checking the reliability of . 

Key words: suspension, wider, simulation, optimization, torsion bar springs

 

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