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文章基于纯电架构的底盘开发的特点进行研究分析。以纯电架构与燃油架构做比较,从整车性能及布置等方面提出的不同需求展开研究,分析了底盘架构的开发特点。从性能角度,通过搭建动力学模型,阐述了采用后驱及四驱布置、多连杆前悬、半轴等长布置及EPS增加反馈等综合方案对于提高纯电架构的加速稳定性的设计思想。通过仿真分析,从布置角度阐述了采用五连杆后悬、转向机前置等综合方案对于提高纯电架构整体布置效率以及车身安全碰撞方面的提升。 相似文献
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基于UG的客车底盘三维参数化总布置设计系统 总被引:7,自引:1,他引:7
介绍了在建立零部件图形库,底盘参数数据库,底盘设计标准库的基础上,通过UG软件进行二次开发建立的集成于UG环境下的客车底盘参数化三维总布置设计系统,该系统的研制在一定程度上实现了客车底盘的虚拟设计与虚拟开发,详细阐述了系统开发的基本原理和主要方法。 相似文献
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横置二级消声器可以节约底盘布置空间,并且便于实现双排气管的造型效果,因此在轿车设计中应用广泛。但是横置二级消声器存在隐蔽性较差的缺点,在某些情况下影响整车后部视觉效果。因此如何更好地隐藏二消,是底盘布置和车身布置的重要考虑因素。文章结合某车型现状,提出若干优化方案,并分析评价可行性和效果。 相似文献
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介绍了一种使用重型卡车底盘改装的新型抢险救援车的结构设计。这种抢险救援车以重型卡车二类底盘为基础,设计制作后部车厢,并配备前置液压清障铲,后置随车起重机及液压绞盘,具备装备、举升、起吊、牵引等多项功能,满足城市道路及野外等环境清障抢险救援需求。 相似文献
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A large-sized tactical wrecker is a special-purpose vehicle that lifts and tows tactical vehicles and heavy loads. It consists of a crane, a post structure, outriggers and a suitable chassis truck, and during its initial design, the structural safety and tipping stability should be preemptively examined in terms of the layout of these components. This paper proposes computer-aided engineering (CAE) methods to evaluate the maximum lifting capacity of the wrecker and the structural safety of its crane during the initial design. The analytical model for the large-sized wrecker is constructed with 236 degrees of freedom by combining the crane system developed using the ADAMS macros with the dynamic model of large chassis truck with an axle suspension. The design parameters for the wrecker model that influence the tipping stability are selected, and then the maximum lifting loads with the corresponding changes are calculated. This parametric study shows that the characteristics of the boom and the layout of the outriggers greatly affect the maximum lifting capacity. Finite element (FE) analyses of the 1st stage boom and the 3rd stage boom show the stresses under the maximum overturning moment condition are within the allowable strength. 相似文献
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设计了一种由装载机底盘改装而成的除雪车的液压系统,阐述了除雪车工作装置回路和转向回路的原理,并时液压系统和元件进行了计算,最后对液压泵和发动机功率进行了校核。对液压系统及工作装置的理论计算表明:改装后的除雪车各项性能满足设计要求,能正常、稳定工作。 相似文献
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《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(7):815-830
The design of a narrow-track enclosed vehicle for urban transport was the subject of the CLEVER project. Due to its narrow track and requirement for car-like controls, an actively controlled tilting system was integrated into the chassis to allow for high lateral accelerations without rolling over. The cornering behaviour of this unique vehicle concept is investigated and compared with the ideal Ackermann response. The steer kinematics of this 1F1T (one front wheel, one wheel tilting) configuration are assessed through the use of a steady-state steering model, with attention focused on how steer parameters such as tilt axis height and inclination can be tuned to provide the required response. A prototype vehicle was designed and built and the results of experimental testing are presented to illustrate the real balancing performance of the combined steering and tilting approach used for the CLEVER vehicle. The experimental results follow the trends demonstrated in the model. 相似文献
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根据国外商用车底盘运输模式,对国内商用车底盘运输现状进行分析,并以国内首辆商用车底盘运输半挂车为例,介绍其产品特点和综合社会经济效益。结合现有的基本国情和法规,提出了商用车底盘运输的发展建议。 相似文献