Experimental verification of the steering performance of all-hydraulic crawler chassis

• Autorzy: Lv X. , Shi X. , Lv X. , Wang T.

Identyfikatory

DOI

10.24423/EngTrans.850.20181017

• Języki publikacji: EN

Abstrakty

EN

The force conditions in the steering system of the chassis under different conditions are analyzed theoretically for the independently designed and developed all-hydraulic crawler chassis. Using the multi-body dynamic simulation software RecurDyn, the chassis steering performance on sandy loam and clay pavements, and the steering performance under different steering radiuses on the sandy loam pavement are simulated and analysed dynamically respectively. The steering resistance moment is studied when the pavement conditions and steering radius are different. This research selects inside and outside crawler slip ratio as an index, and road conditions, speed and steering radius as factors to test the steering performance of all-hydraulic crawler chassis under different operating conditions. It is observed from the simulation results that during the pivot steering on the sandy loam, the drive torque and braking torque of the driving wheel are larger than on the clay ground. With the decrease of the steering radius, the torques of the left and right driving wheel are both gradually increasing. In the same steering radius, the torque of the outside driving wheel is larger than that of the inside driving wheel. The simulation results are consistent with the theoretical analysis results. In the steering performance test, the factors influencing the slippage rate on both sides of the crawler are such that the influence of the steering radius is greater than that pf the pavement condition and the pavement condition influence is greater than that of the speed. Among them, the steering radius has a significant influence on the slip ratio of the inside crawler, and an extremely significant influence on the slip ratio of the outside crawler. This research can provide a certain theoretical basis and technical reference for the development of hydraulic crawler chassis and optimization of the steering system.

Słowa kluczowe

EN

crawler chassis; steering; dynamics simulation; RecurDyn; performance test

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2018
• Tom: Vol. 66, iss. 4
• Strony: 427--442
• Opis fizyczny: Bibliogr. 22 poz., rys., tab., wykr.

Twórcy

autor

Lv X.

• Key Laboratory of Modern Agricultural Equipment Ministry of Agriculture Nanjing, Jiangshu, 210014, China
• College of Machinery and Automotive Engineering Chuzhou University Chuzhou, Anhui, 239000, China

autor

Shi X.

• College of Machinery and Automotive Engineering Chuzhou University Chuzhou, Anhui, 239000, China

autor

Lv X.

• College of Machinery & Electronics Sichuan Agricultural University Ya’an, Sichuan, 625014, China

autor

Wang T.

• College of Machinery & Electronics Sichuan Agricultural University Ya’an, Sichuan, 625014, China

Bibliografia

• 1. Zheng R.G., Analysis of application performance of crawler chassis in agricultural production [in Chinese], Agricultural Use and Repair, (6): 15, 2004.
• 2. Chi Y., Wang H.T., Shi D.D., Zhang R., Research on steering power ratio for skidsteering with small radius of tracked vehicles adopting differential steering mechanism [in Chinese], Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 45(12): 112–118, 2014.
• 3. Li S., Gang X.Y., Yu H.X., A 3-DOF dynamical model and steering simulation for a rigid vehicle [in Chinese], Machinery Design & Manufacture, (3): 260–264, 2015.
• 4. Yang L., Ma B., Li H.Y. et al., Performance simulation of hydrostatic drive tracked vehicles differential and independent steering [in Chinese], China Mechanical Engineering, (3): 624–629, 2010.
• 5. Al-Milli S., Seneviratne L.D., Althoefer K., Track-terrain modeling and traversability prediction for tracked vehicles on soft terrain, Journal of Terramechanics, 47(3): 151–160, 2010.
• 6. Ding L., Gao H.B., Deng Z.Q., Li Y., Liu G., New perspective on characterizing pressure-sinkage relationship of terrains for estimating interaction mechanics, Journal of Terramechanics, 52: 57–76, 2014.
• 7. Bekker M.G., Introduction to Vehicle System – Ground [M], Mechanical Industry Press, Beijing, 1978.
• 8. Chi Y., Zhang R.G., Ren J., Li H., Wang Y., Steering power ratio affected by soil sinkage with differential steering in tracked vehicle [in Chinese], Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 32(17): 62–68, 2016.
• 9. Sandu C., Worley M.E., Morgan J.P., Experimental study on the contact patches pressure and sinkage of a lightweight vehicle on sand, Journal of Terramechanics, 47: 343–359, 2010.
• 10. Yang L., Ma B., Li H.Y. et al., Research hydraulic drive armored tracked vehicle steering characteristic simulation, Ordnance Journal, (6): 663–668, 2010.
• 11. Lu J.J., Wei L.S., Zhao T.S., Based RecurDyn Slip on tracked vehicle acceleration performance impact study, System Simulation Technology, (7): 139–143, 2007.
• 12. Shabana A.A., Sany J.R., A survey of rail vehicle track simulations and flexible multibody dynamics, Nonlinear Dynamics, 26(2): 179–212, 2001.
• 13. Cheng J.W., Gao L.H., Wang L.X. et al., Based on the high-speed turn under slippery conditions Tracked Vehicle, Vehicle and Power Technology, (1): 44–48, 2006.
• 14. Li X.Y., Zhang Y., Hu J.B., Yuan S.H., Skid-steering resistance characteristics of wheeled vehicle, Acta Armamentarii, 32(12): 1433–1438, 2011.
• 15. Lu J.J., Wei L.S., Zhao T.S., Based on the tracked vehicle speed RecurDyn steering dynamics simulation study, Modern Machinery, (1): 10–12, 2008.
• 16. Chen S.Y., Sun F.C., Study on modeling and turning performances for electric drive tracked vehicle propulsion system, Journal of System Simulation, 18(10): 2815–2818, 2006.
• 17. Liu K., Ayers P., Howard H., Anderson A., Influence of turning radius on wheeled military vehicle induced rut formation, Journal of Terramechanics, 46(2): 49–55, 2009.
• 18. Wang J., Wei L.S., Lan X.P., Modeling and simulation of driver-tracked vehicle-road system, Computer Integrated Manufacturing Systems (CIMS), (9): 108–111, 2003.
• 19. Ma X.G., Chen Y.Y. et al., Based on the multi-body dynamics simulation analysis of the tracked vehicle steering performance, Mechanical Design, 29(6): 52–56, 2012.
• 20. Fang S.S., Lu Z.X, Wang Z.C. et al., Design and prototype performance experiments of steering-by-wire hydraulic pressure system of tractor [in Chinese], Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 33(10): 86–93, 2017.
• 21. Wen A.M., Lu Z.X., Wu J.G., Experiment and analysis of full hydraulic steering characteristics [in Chinese], Journal of Chinese Agricultural Mechanization, 35(5): 122–127, 2014.
• 22. Long J.Q., Research on the test way and evaluation indexes of the vehicle’s steering stability [in Chinese], Popular Science & Technology, 17(8): 70–71, 2015.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).