Abstract
Experimental researches show that the gas polytropic process does not follow the ideal gas state equation. And the accuracies of the commonly applied real gas models are limited because the impact of gas hysteresis is neglected. In this paper, a novel real gas state equation considering gas hysteresis is derived. The main factor is the compression ratio of gas and the gas hysteresis time is introduced into this model. Based on that, the dynamic model of roll motion property of suspension system is derived combining with the geometric model of 6 cylinders hydro-pneumatic suspension. Sinusoidal excitation tests under different working conditions are carried out and the simulation and experimental results are compared. The maximum discrepancy of roll moment is 5.3%. The results indicate that the model can accurately reflect the roll property of hydro-pneumatic system.
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Acknowledgement
The authors would like to thank support from the National Natural Science Foundation of China, China (No. 51575233) and the National Natural Science Foundation of China, China (No. 51975122).
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Wang, Y., Li, Z. (2022). Characteristic Analysis of Hydro-Pneumatic Suspension Roll Motion Based on a Novel Real Gas State Equation. In: Wang, Y., Martinsen, K., Yu, T., Wang, K. (eds) Advanced Manufacturing and Automation XI. IWAMA 2021. Lecture Notes in Electrical Engineering, vol 880. Springer, Singapore. https://doi.org/10.1007/978-981-19-0572-8_39
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DOI: https://doi.org/10.1007/978-981-19-0572-8_39
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