重庆理工大学学报2026，Vol.40Issue(7)：32-39,8.DOI:10.3969/j.issn.1674-8425(z).2026.04.004
钢轮钢轨制式悬挂式PRT车辆动力学性能分析及优化
Analysis and optimization of dynamic performance of suspended PRT vehicle based on drum rail travel mode
摘要
Abstract
The suspended monorail system is crucial for urban transportation upgrading thanks to its strong terrain adaptability and high space utilization.However,traditional rubber-tired running systems suffer from tread temperature rise,severe wear,and lateral instability under high-speed conditions.Thus,it is difficult to maintain a high operating speed.To address these issues,this paper proposes a suspended PRT(Personal Rapid Transit)vehicle architecture based on symmetrical steel wheel-rail running system,introducing the mature metro steel wheel-rail technology into the suspended monorail system to systematically address the thermal failure,wear and lateral force imbalance associated with conventional rubber-tired and asymmetric steel wheel configurations.To verify the dynamic performance of the innovative architecture,a vehicle model is built based on the multi-body dynamics theory and the NSGA-II genetic algorithm is employed to optimize the running stability of the PRT vehicle.Results indicate the straight-line critical speed of the suspended PRT vehicle based on the steel wheel-rail system reaches 229 km/h,markedly higher than that of the rubber wheel system.The vehicle exhibits good curve negotiation performance and maintains excellent stability across the full speed range.Moreover,the car body roll angle is 4.5° and the vertical and lateral ride stability indices are reduced by 9.25％and 8.64％respectively at a speed of 60 km/h.关键词
悬挂式单轨/钢轮钢轨系统/多体动力学仿真/车辆动力学优化Key words
suspended monorail/drum rail system/multibody dynamics simulation/vehicle dynamics optimization分类
交通工程引用本文复制引用
杜子学,黄立波,许舟洲,文孝霞,杨震..钢轮钢轨制式悬挂式PRT车辆动力学性能分析及优化[J].重庆理工大学学报,2026,40(7):32-39,8.基金项目
重庆市自然科学基金面上项目(CSTB2022NSCQ-MSX1264) （CSTB2022NSCQ-MSX1264）
重庆市技术创新与应用发展专项重大项目(CSTB2024TIAD-STX0021) （CSTB2024TIAD-STX0021）
