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动力
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  power
    Design and Simulation of Power System for a New Hybrid Electric Vehicle and Research on Electrical Drive System
    一种新型混合动力电动汽车的动力系统设计、仿真及电机驱动系统的研究
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    A Review on the Underground Trackless Equipments with Accumulator-Battery and its Power Source
    井下蓄电池无轨设备及其动力源的评述
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    ZF Power Steering Systems for on and off-road Vehicles Safety Requirements-An Overview of the ZF "Servocom" Generation of Steering Systems
    ZF公路和非公路车辆的动力转向系统安全性要求—ZF“Servocom”型转向系统综述
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    New Fully-Hydraulic Power Steering System
    新型全液压动力转向系统
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    All-Electronically Confrolled Power Steering System
    全电子控制的动力转向系统
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  “动力”译为未确定词的双语例句
    Hybrid Electric Vehicle Control System Design and Simulation
    混合动力汽车控制系统设计与仿真
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    Systematic Research & Simulation on Quasi_Rhombus Hybrid Electric Vehicle Equipped with CVT
    基于CVT的类菱形混合动力电动汽车系统研究与仿真
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    Gear Shift Schedule and Gearshift Control for Amt in Hybrid Electric Vehicle
    混合动力汽车AMT换档策略及换档控制的研究
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    Modification of TyPe EQ-140 5-T. Truck for Use in plateau
    云南高原地区提高东风EQ-140型货车动力性和经济性的试验
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    The Research on the Automotive Vehicle Performence and Fuel Economy Simulation and the Axle Ratio Optimization
    汽车动力性、燃油经济性模拟与主减速比优化的研究
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  power
If is a ?2-grading of a simple Lie algebra, we explicitly describe a-module Spin0 () such that the exterior algebra of is the tensor square of this module times some power of 2.
      
The operation adj on matrices arises from the (n - 1)st exterior power functor on modules; the analogous factorization question for matrix constructions arising from other functors is raised, as are several other questions.
      
Let q be a power of p and let G(q) be the finite group of Fq-rational points of G.
      
We prove a Tauberian theorem of the form $\phi * g (x)\sim p(x)w(x)$ as $x \to \infty,$ where p(x) is a bounded periodic function and w(x) is a weighted function of power growth.
      
A new C*-algebra of strong limit power functions is proposed.
      
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In recent years, the contour of piston skirt of medium and high internal combustion engines tends, on its transverse section, to be elliptical, the ellipses changingalong the skirt length, and on its longitudinal section to be barrel-shaped. So thecontour of piston skirt is a complex space curve. The author had not seen any publications about the convincing basic theories, workable design methods and manufacturing processes of the above contour.So the author, basing on elastic stability theory, heat transfer...

In recent years, the contour of piston skirt of medium and high internal combustion engines tends, on its transverse section, to be elliptical, the ellipses changingalong the skirt length, and on its longitudinal section to be barrel-shaped. So thecontour of piston skirt is a complex space curve. The author had not seen any publications about the convincing basic theories, workable design methods and manufacturing processes of the above contour.So the author, basing on elastic stability theory, heat transfer and fluid dynamic lubrication theories explored the basic theories and design methods. Detailed analysis of the design methods and how these contours change were given. Finally, aset of formulas describing this contour was also given.

近年来,国外中小型内燃机的活塞裙部外形型面,多趋向在横截面上呈椭圆、且沿裙高椭圆形还是变化的;而在纵向上呈鼓形的复杂空间曲面。但对这种曲面的具体变化规律、设计这类曲面的理论根据以及这类曲面的确切可靠、经济合理的成形加工工艺等技术关键问题,却一直未见透露。本文从弹性稳定理论、传热学和流体动力润滑理论的一些原则结论出发,探讨了设计这类曲面的理论根据,详细分析了这类曲面的具体变化规律和设计方法,提出了描述这类曲面的圆柱参数方程式组。

The Use of Least Square method to calculate the distribution of braketorques between axles was proposed, and an example was given.

介绍用最小二乘法求解汽车制动力的分配,并举例作应用的说明。对于在设计阶段初步确定制动力的分配比值是有用的。

In this paper , the modal synthesis techniques is adopted for the vibration analysis of the whole vehicle structural system. The analysis procedure begins by subdividing the whole vehicle structural system into some component parts, substructures, such as body, chassis frame, wheels and axes, engine and attachment elements, such as body mounts, engine mounts and tires. For the elastic components as chassis frame, the free-free natural frequencies and mode shapes can be either calculated by finite element method...

In this paper , the modal synthesis techniques is adopted for the vibration analysis of the whole vehicle structural system. The analysis procedure begins by subdividing the whole vehicle structural system into some component parts, substructures, such as body, chassis frame, wheels and axes, engine and attachment elements, such as body mounts, engine mounts and tires. For the elastic components as chassis frame, the free-free natural frequencies and mode shapes can be either calculated by finite element method or provided from experimental tests. The engine, wheels and axes may be taken as rigid bodies. These substructures are connected by attachment elements. All types of attachment elements are represented by linear elastic springs in the analysis. With the modal coordinates, after writing out the expression for the kinetic and potential energies of free-free substructures and springs, motion equations of whole system can be obtained by Lagrange's equations. Only the spring forces are coupling terms of motion equations. All informations of dynamic characteristics come from separate analysis for each of the substructures. An approach emphasizing the clearness of physical concepts, mathematical simplicity, accurancy of results, and for less capacity of computer is thus presented. According to final computer program an example is given which shows advantages of the method.

本文采用模态综合技术对整车结构系统作振动分析。首先把整个汽车结构系统分割成若干部件,也称子结构,诸如车身、车架、轮轴、发动机,以及车身悬挂、发动机悬挂和轮胎等连接件。对于车身等弹性部件,可以按有限单元法进行计算或由试验获得自由-自由的固有频率和主振型。对于发动机和轮轴可简化为刚体。这些子结构由连接件相连结。所有连接件在分析中都用线性弹簧来代表。写出在模态坐标下自由-自由子结构和弹簧的动能和势能表达式后,由Lagrange方程式可得系统的运动方程式。方程式中只有弹簧力是耦合项。全部动力特性的信息均来自对各部件的独立分析。本方法着重于物理概念清楚、数学简洁、结果精确以及少的计算机容量。根据所编制的程序,给出的算例表明了此法的优点。

 
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