CAJ | 학술논문

针对轿车操纵稳定性研究方法在汽车列车研究中的局限性,探讨了一种适合于研究汽车列车操纵稳定性的方法和改善措施.根据所建包含鞍座阻尼的半挂汽车列车系统动力学模型,进行了"S"移线工况下汽车列车运行状态的计算机仿真与分析,揭示了挂车相对牵引车侧倾角、横向加速度等运动参数的变化响应,并通过施加鞍座阻尼力矩来改善系统的横向稳定性.研究结果表明阻尼力矩能有效减小系统的横摆振幅和摆振频率,为研究半挂汽车列车操纵稳定性提供了参考和借鉴.
침대교차조종은정성연구방법재기차열차연구중적국한성,탐토료일충괄합우연구기차열차조종은정성적방법화개선조시.근거소건포함안좌조니적반괘기차열차계통동역학모형,진행료"S"이선공황하기차열차운행상태적계산궤방진여분석,게시료괘차상대견인차측경각、횡향가속도등운동삼수적변화향응,병통과시가안좌조니력구래개선계통적횡향은정성.연구결과표명조니력구능유효감소계통적횡파진폭화파진빈솔,위연구반괘기차열차조종은정성제공료삼고화차감.
Considering the limitations when the handling stability research methods of cars are applied to tractor trailer, a new research method and an improved measure for handling the stability of tractor-semitrailer were proposed. A system dynamic model of tractor-semitrailer including saddle damping parameter was established, and computer simulation was done under 'S' lane-change working conditions. The relative change response characteristics of the tractor's motion parameters, such as the rolling angle and lateral acceleration, were revealed through comparative analysis. The lateral stability of the system was also improved by applying saddle damping torque. The research results have shown that the application of damping torque to saddle can reduce yaw amplitude and shimmy frequency, which provides a reference for the research on the handling stability of tractor-semitrailer.