Because the research on anti - running device ' s property is also one of the wagons ' dynamic problems in marshalling - yard , it possesses important significance to establish mathematical model of the rear of marshalling - yard 防溜器制动性能的研究也是编组场内车辆动态问题研究的基础之一，对建立编组场尾部数学模型有其应用价值。
According to the effect of non - deterministic parameters on product performance , with wet multi disc brake , the functional relationship between design variable and brake performance was proposed by the response surface method 摘要针时不确定性对产品性能的影响，以湿式多盘制动器设计为例，利用响应面模型，建立了设计变量和制动性能的关系。
Our products are widely used in brake manufacturing of motorcycles , automobiles , trains and planes as raw material with properties of steady braking , durability , excellent heat - sinking capacity , stable friction factor and low noisy 本产品是摩托车，汽车，火车，飞机等运动机械制动蹄的主要原料，具有制动性能稳定，散热性好，磨损率低，磨擦系数稳定，躁声低等特点。
Meanwhile , it is seen that the nonlinear and time - varying tyre model is useful for the sim ulation and analysis of braking performances of vehicles on rough road surface b ecause it reflects the real influence of the road surface roughness on tyre 同时说明非线性时变轮胎模型能较真实地体现路面不平度的影响，对不平路面上车辆制动性能仿真是一个有效的轮胎力学模型。
But the domestic brake system test instruments of automobile have many differences in test objects , process and the installment style , this bring much inconvenience when we design , debug , maintain and upgrade the test system 国产汽车制动性能检测仪器因检测对象、流程、设备以及安装方式的差异而各不相同，从而给测试系统的设计、调试、维护、升级等带来了诸多不便。
Here we use the su - 2 testing system to do experiments , it has the advantages of directness and exactness , moreover , using computer to analyse the experimental data can reduce the workload of human 本文系统地研究了汽车制动系统的设计理论、设计方法，依据并行工程原理、相关制动法规，采用su - 2测试系统进行汽车的制动性能试验，该试验系统具有操作简便、性能可靠的优点。
Its defects are these : bad brake performance , bad heat - resistant nature , bad water damping quality and bad stabilization of direction . so it is necessary to develop new er . with variable structure parameters and intellectualized characteristic 其缺点是制动性能和水衰性及汽车制动时方向稳定性等方面均较差，开发研制结构向参数可变的、智能化的电流变液制动器成为必要。
The calculating method and results , which could be used in various truck cranes , provide a theory basis for brake system design and brake performance check and is practical for analysis of brake performance and traffic safety of the crane on road 计算方法和结果适合各种轮式起重机，为汽车起重机制动系统的设计及其制动性能的检验提供了理论基础，在道路交通安全分析方面具有实用性。
Compared with fix - pitch wind turbine , the variable - pitch wind turbine has the virtue : stable output power over rated power , high wind power coefficient , holding rated power at high wind speed , good starting and shut - off etc . 变桨距风力发电机组与定桨距风力发电机组相比，在额定功率点以上输出功率平稳、具有较高的风能利用系数、能够确保高风速段的额定功率、起动性能与制动性能好等特点。
The road tests of this vehicle ' s braking and handling performance have been processed ; it is found the simulation analysis is coherent with the testing data , and the braking and handling performance of this vehicle are well Nj2046越野汽车的操纵稳定性和制动性能的道路试验表明，对该车进行的操纵稳定性和制动性能的仿真分析与试验结果具有较好的一致性，该车具有良好的操纵稳定性和制动性能。
