Stiffness Performance Simulation and Testing of a New Type Integrated Suspension Strut

Abstract:

The design scheme of a new type strut was put forward, whose stiffness characteristics can undertake linkage control. The structure and basic principle of this new suspension component were introduced. According to fluid mechanics and thermodynamics, a mathematical model for the stroke dependent stiffness characteristics of the strut was established, and the stiffness characteristics were analyzed by using software SIMULINK. Then the stiffness performance bench test of the strut specimen was carried out for verification. Results show that the test results agree well with the simulation results. It is verified that the established mathematical model is correct and the stiffness of this strut shows nonlinear changes vary with the displacement of piston. When the suspension is largely impacted, the stiffness of this strut increases quickly which could restrain the wheel bouncing, body roll and vertical vibration.

• Periodical: Advanced Materials Research (Volumes 472-475)
• Pages: 2760-2765
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.472-475.2760
• Online since: February 2012
• Authors: Hao Bin Jiang, Ying Jun Du, Shen Chen Ye
• Keywords: Bench Test, Integrated Suspension Strut, Performance Simulation, Stroke Dependent Stiffness Characteristics

References

[1] Toyota Motor Corp. TEMS (Toyota electrical modulated suspension) and Air Suspension Training Manual (Toyota Maintenance Technology Education Publications, Japan 1997).

[2] Li Ma, Le He, and Dafeng Jin, in: Research on Static Stiffness Characteristics and Test of An Integrated Air Suspension Shock Absorber, edited by Automotive Technology, Vol.11(2009), pp.52-55. In Chinese.

[3] ContiTech Holding GmbH. ContiTech Air Springs for Commercial Vehicles. Hannover- ContiTech Holding GmbH.

[4] Yuelin Li: Engineering Thermodynamics and Heat Transfer Theory (China Communication Press, China 1999). In Chinese.

[5] Bin Xue: Engineering Thermodynamics (Shanxi Scientific and Technological Press, China 2005). In Chinese.

[6] Zhigu Zhang and Bingsan Shi: Refrigeration and Cryogenic Technology (China Machine Press, China 1982). In Chinese.

[7] Guozhi Zhen and Renkang Gu: Light Industry Hydraulic and Pneumatic Transmission (China Light Industry Press, China 1994). In Chinese.

[8] Malin.Presthus, in: Derivation of Air Spring Model Parameters for Train Simulation. Submitted to Lulea University of Technology(2002).