共查询到20条相似文献,搜索用时 156 毫秒
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利用空间机构运动学和数值计算的方法对双横臂独立悬架系统进行了运动学分析,并对导向机构结构参数和转向梯形断开点位置进行了优化设计。结果表明,该算法使得悬架的设计更为精确、清晰,提高了工作效率;优化后,悬架系统的运动学特性得到了改善。 相似文献
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针对3自由度1/4车座椅悬架模型,采用滑模变结构控制(Sliding Mode Control,SMC)的方法设计了应用在半主动座椅悬架的控制器,运用径向基函数神经网络对SMC进行优化。在Matlab/Simulink下进行仿真,仿真结果表明,采用神经网络的优化方法与传统的SMC方法相比,使实际被控对象不仅保证了系统的稳定性,提高了乘坐的舒适性,而且有效地抑制了系统的“抖振”现象。 相似文献
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夏利轿车(TJ100型)前悬架采用带横向稳定杆的滑柱摆臂式独立悬架。横向稳定杆兼起纵推力杆的作用;减振器同时又作为悬架杆件之一。前悬架支座橡胶套具有足够大的体积且结构简单,能有效地缓和冲击、提高乘坐舒适性和操纵稳定性。后悬架采用带纵拉力杆的滑柱摆臂式独立悬架,由两条横向、平行布置的拉力杆、减振器和螺旋弹簧组成。来自路面各方向的负荷分别由不同悬架杆件承受。但其缺点是:由于与车身接合点 相似文献
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介绍了轿车用被动悬架、半主动悬架、主动悬架的结构特点和工作原理,以及各自的优缺点与发展趋势。通过比较分析得出:被动悬架因结构简单、性能可靠、成本低、不耗能而得到广泛应用;主动悬架虽性能优越,但因元件价格昂贵,工作时能耗高而使其应用受到限制;半主动悬架性能好于被动悬架,且成本比主动悬架低得多,是今后悬架系统的主要发展方向。 相似文献
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Publio Pintado Miguel-Angel Castell 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》1999,31(3):137-155
The dynamic behavior of commercial vehicles fitted with differentr types of suspension mechanisms and steering devices is investigated in this paper. Six vehicle models have been constructed: 2WS-SA is a standard two wheel steering bus with solid axles; 2WS-DW is a 2WSA vehicle with independent double wishbone suspension in front and rear axles; SSA-SA is a 2WS system with solid axles, the rear one being mounted on a self steered mechanism; SSA-DW is a vehicle with independent double wishbone suspension in the front axle, and a solid self steered rear axle; 4WS-SA has four wheel steering with solid axles; and 4WS-DW is a 4WS vehicle with independent double wishbone suspension in front and rear axles. The dynamic response of these models has been assessed in terms of lateral acceleration, yaw velocity, tire forces, tire force reserves, and slip angles. The expected advantages of a 4WS system (higher acceleration rates and lower slip angles) will be corroborated but, at the same time, it will be shown that they are obtained at the cost of lower force reserves. Self steered mechanisms produce smaller body slip angles, but it will be shown that they give rise to larger yaw velocity overshootings. The particular independent suspension analyzed does not show significant improvements with respect to the solid axle counterpart. 相似文献
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论述了客车短后悬的优点,并针对现行的发动机后横置短后悬存在结构复杂、传动效率低、成本高的不足,开发了一种传动可靠的低成本客车短后悬结构. 相似文献
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利用ADMAS对一种典型的多连杆后悬架进行多体动力学建模和仿真分析,对该悬架的基本特性作出评价并通过K&C试验台验证仿真模型的正确性,从而获得一套典型多连杆后悬架的虚拟样机。 相似文献
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A. Moran M. Nagai 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》1993,22(5):321-334
The performance of neural networks to be used for identification and optimal control of nonlinear vehicle suspensions is analyzed. It is shown that neuro-vehicle models can be efficiently trained to identify the dynamical characteristics of actual vehicle suspensions. After trained, this neuro-vehicle is used to train both front and rear suspension neuro-controllers under a nonlinear rear preview control scheme. To do that, a neuro-observer is trained to identify the inverse dynamics of the front suspension so that front road disturbances can be identified and used to improve the response of the rear suspension. The performance of the vehicle with neuro-control and with LQ control are compared. 相似文献