| Analysis on Dynamics Properties of Air Suspension with Additional Air Chamber |
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| DOI： |
| Key Words: air suspension with additional air chamber；damping characteristics；stiffness characteristics |
| Author Name | Affiliation | | ZHANG Xiao-lei | Shijiazhuang Tiedao University | | ZHENG Ming-jun | Shijiazhuang Tiedao University | | WU Wen-jiang | Shijiazhuang Tiedao University | | FENG Guo-sheng | Shijiazhuang Tiedao University |
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| Abstract: |
| Based on the thermodynamics and kinetics of gas flow，the vertical stiffness expression was developed for the air suspension with additional air chamber，a mathematical model of mass flow rate through the orifice was established，and the 1/4 simulation model of the air suspension was established in AMESim platform.The influence of cross-sectional area of the orifice and the volume of additional air chamber on the dynamic characteristics of the air suspension was analyzed.The results showed that，the cross sectional area of the orifice was a key factor affecting the damping characteristics of air suspension，and when it increased，the damping properties were improved first and then reduced.Use of additional chamber could reduce the stiffness of the suspension system，and increase of its volume reduced the self-vibration frequency and improved the damping properties of the suspension system. |
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