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本文系统介绍了我国现行的与挂车设计制造有关的标准和法规情况,包括强制性和推荐性标准,3C认证、召回制度、准入规则等相关法规,对行业应有不少参考价值。 相似文献
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以国内某轻型载货汽车出口车型为研究对象,分析了国内与国外制动法规的差异性,开展了针对出口车制动系统法规适应性设计方面的研究,提出了针对出口轻卡制动系统的设计要点,归纳了出口车制动系统认证流程,对今后国产出口车新产品的开发和认证具有积极的借鉴意义。 相似文献
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双层客车安全法规ECER107是一部十分详细的技术法规,对双层客车的设计提出了系统的安全要求,本文简明地介绍了其技术规定,并同ECER36-03及GB13094做了比较分析。 相似文献
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结合电动汽车低速行驶噪音低不易被察觉的特点,欧洲经济委员会经过多年研究发布了车辆有声提示系统(AVAS)的技术法规,规定了车辆的最小声音限值和频移。文章深入研究该法规的制定过程,对AVAS的技术要求、试验方法和发展趋势进行了详细的解读,为系统开发提供参考依据和设计建议。 相似文献
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转向系统对汽车的操纵轻便性、机动性、灵敏性及行驶安全性至关重要,伴随着中国汽车产业的蓬勃发展,人们对转向系统的要求也越来越高。以某氢燃料轻卡为例,介绍了转向系统的设计匹配过程,通过理论计算及分析,验证了转向系统设计的法规符合性,并通过系统零部件匹配校核,验证了转向系统设计的安全性和合理性,研究结论可为其他车型转向系统设计提供参考。 相似文献
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文章主要分析了欧盟M1类乘用车整车型式认证所涉及的新技术法规要求.分析结果表明:欧盟国家在尾气排放、行人保护、材料回收利用、电子稳定系统、CO2排放、化学物质管理、空调系统、绿色轮胎等方面的法规要求比中国严格.因此,出口汽车企业在进行产品设计验证的时候应特别注意上述法规要求,以减少后期产品改造的成本,降低企业运营风险,从而有效应对国际贸易技术壁垒. 相似文献
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《汽车安全与节能学报》2015,(3)
根据欧洲经济委员会(ECE)推出的R129法规中儿童座椅侧面碰撞保护性能的要求,建立了侧面碰撞台车试验系统。用已有后向碰撞波形发生装置,组合了后向碰撞聚氨酯管、橄榄头、台车初速度,调试波形,实现了侧面碰撞所需的速度波形。按照该法规,设计台车座椅和门板系统,进行Q系列3岁假人模型的侧面碰撞试验,测量了假人头部、胸部损伤,分析了座椅与门板相对速度曲线和碰撞过程的高速摄影图像。结果表明:速度波形符合该法规要求,台车座椅和门板系统位置准确、结构稳定。因而,该台车试验系统,能满足该法规要求,进行侧面碰撞试验。 相似文献
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车身内部布置CAD系统及其应用 总被引:7,自引:2,他引:7
介绍了自行开发的汽车车身内部布置的CAD系统,并就系统在设计中的应用了说明。该系统是在通用图形软件基础上进行二次开发而成的,以SAE标准,EEC标准及为主要依据,将CAD技术运用到车身内部布置设计中。 相似文献
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基于CATIA三维设计优势,将消防车各功能部件按照装配依从关系,以父子关系的方式建立一个桌面布局平台,在关键装配体的布局文件中建立子部件的定位平面、控制草图,以便在整个设计过程中对产品及各部件进行控制管理、调整结构布局、更改产品造型、测控载荷分布、优化设计方案等,达到高效、准确、优质的设计效果。 相似文献
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采用以结构可靠性理论为基础的多系数极限状态设计方法已经成为国际结构工程界的大趋势,我国在结构可靠性理论研究和应用上已和国际标准接轨。比较了按结构可靠性理论进行设计与传统设计理论的不同特征。 相似文献
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《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(4):257-278
Summary In this paper, the sensitivity analysis is applied to the development of high performance adaptive hydraulic mounts. The analysis allows us to select the most effective design parameters for tuning an adaptive mount to different road and engine conditions. It is shown that in the low frequency road excitation, the upper chamber compliance and inertia of the fluid column in the inertia track are the most influential properties in changing the dynamic stiffness of the hydraulic mount. These properties for the high frequency engine excitations are the upper compliance and the inertia of the fluid column of the decoupler. For tuning the adaptive mount to different road and engine excitation, a global optimization technique is used to find the magnitude of the adjusting parameters to minimize objective functions in low and high frequency excitations. The results indicate significant improvement over conventional hydraulic mounts. It is further shown that when the upper compliance is used as the adjusting parameter, a simple on-off control which is triggered by the engine revolution and vehicle speed is sufficient for tuning the adaptive mount. 相似文献
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M. S. Foumani A. Khajepour M. Durali 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2003,39(4):257-278
Summary In this paper, the sensitivity analysis is applied to the development of high performance adaptive hydraulic mounts. The analysis allows us to select the most effective design parameters for tuning an adaptive mount to different road and engine conditions. It is shown that in the low frequency road excitation, the upper chamber compliance and inertia of the fluid column in the inertia track are the most influential properties in changing the dynamic stiffness of the hydraulic mount. These properties for the high frequency engine excitations are the upper compliance and the inertia of the fluid column of the decoupler. For tuning the adaptive mount to different road and engine excitation, a global optimization technique is used to find the magnitude of the adjusting parameters to minimize objective functions in low and high frequency excitations. The results indicate significant improvement over conventional hydraulic mounts. It is further shown that when the upper compliance is used as the adjusting parameter, a simple on-off control which is triggered by the engine revolution and vehicle speed is sufficient for tuning the adaptive mount. 相似文献
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通过对国内外混凝土结构耐久性的现状概述,说明混凝土结构耐久性设计的必要性。根据京沪高速铁路济南黄河大桥设计前期所落实的建桥环境条件及对黄河水、地下水的水质分析结果并结合耐久性设计有关规定中环境类别及侵蚀作用等级划分标准,判断该桥各部分的环境侵蚀作用等级,并结合结构设计使用年限及工程实际情况,制定了该桥耐久性设计的相关内容。 相似文献
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This paper presents a new optimization method to obtain the structural design of permanent magnet motor which can reduce the mechanical vibration. The optimization problem is formulated to minimize a multi-objective function including the mean compliance of the whole stator for maximizing the stiffness under the magnetic force and the torque ripple by aligning torque profiles to a constant target value for maximizing the magnetic performance, with constraint for material usage. The level set function is introduced for representing the structural boundaries and calculating the material properties. A coupled magneto-mechanical analysis is performed to verify the vibration characteristic of the motor system and obtain the design sensitivities. To confirm the usefulness of the proposed design method and to obtain the optimum structural design for low vibration motor, a design example of 20 kW interior permanent magnet motor developed for the power train of a hybrid electric vehicle is provided. 相似文献