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摩擦
相关语句
  friction
    Preparation and Study of Friction and Wear Mechanism of Fe-Al Intermetallic Base Friction Material
    Fe-Al金属间化合物基摩擦材料制备与摩擦磨损机制研究
短句来源
    Discussion on Test Method for Determining Friction and Wear Properties of Clutch and its Facing
    离合器及其面片摩擦磨损性能测试方法探讨
短句来源
    A Study on Friction and Lubrication Characteristics in Drawing of Low-Carbon Steel sheet
    低碳薄板拉延摩擦润滑特性的研究
短句来源
    Effect of Brake Friction Pair Contact upon Brake Torgue
    制动摩擦副接触状况对制动力矩的影响
短句来源
    The Development of Friction Plates Used in Electricity-Driven Dumpers of 154-ton MARK-36
    MARK-36型154吨电动轮自卸车用摩擦片的研制
短句来源
更多       
  a friction
    This paper describes the structure and working principle of a friction welding machine and the design of the phase adjuster. The application and the economic efficency of this machine are presented.
    本文介绍了摩擦焊机的结构、工作原理、相位修正机构的设计,阐述了该机构的应用及经济效益。
短句来源
    The composition, production technology and property of a friction plate used in electricity-driven dumpers of 154-ton MARK-36 is presented in this paper.
    主要介绍了一种适用于MARK—36型154t电动轮自卸车的摩擦片的组成、生产工艺和性能.
短句来源
  “摩擦”译为未确定词的双语例句
    Lubrication as a Main Way to Save Energy and Increase Economic Benefit
    摩擦润滑是节能及提高经济效益的重要途径
短句来源
    Design of Internal Shoe Types of Brakes CamActuated and Pivoted under Level Specific Pressure of Brake Lining
    凸轮作用内张蹄式制动器摩擦片等比压设计
短句来源
    The Dynamic Heat Flux Model for Emergency Braking
    紧急制动过程动态摩擦热源模型
短句来源
    The Study of Firction and Abrasion Properties in Rapidly Solidified Al- Si-Fe-the Based Alloy
    快凝Al-Si-Fe-Mn合金摩擦磨损性能研究
短句来源
    Experimental Study of Indoor Tire Traction Force on Ice
    冰面上轮胎摩擦牵引力的实验研究
短句来源
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  friction
Many physical systems such as biochemical processes and machines with friction are of nonlinearly parameterized systems with uncertainties.
      
Experimental Research on Friction of Vehicle Tire Rubber
      
A newly developed tire rubber friction test machine is introduced.
      
Test data of tire rubber friction on concrete and icy road surfaces are obtained and analyzed.
      
The effect of different road surface, ambient temperature, contact pressure, and slip velocity on friction coefficient is apprehended.
      
更多          
  frication
In regions where frication or breathing noise is dominant, the spectral peaks are not regularly spaced, of course.
      
  a friction
The region of the existence of self-similar solutions for "breakaway" flow conditions, characterized by a friction at the wall equal to zero, was determined.
      
The present study considers problems of the motion of a gas in a porous medium, and as equation of motion it uses both Euler's equation with a friction force, and empirical dependences - Darcy's linear law and the two-term drag law.
      
The averaged layered turbulent wall flows of an incompressible fluid are considered for an arbitrary wall roughness and a friction coefficient tending to zero.
      
A modified procedure for determining the bearing capacity or maximum admissible pressure on a friction unit has been developed.
      
In the latter case, the MPs are used as lubricants in a friction pair (a model of an artificial joint) exposed to an electromagnetic field simulating the biological field.
      
更多          


This paper starts from discussion of the social and political effects on truck design. Then the author reviews the future of truck design in technical as pects, stressing fuel economy. To improve fuel economy, the heat conversion efficiency of diesel engines must be first improved. The specific fuel consumption of current U. S. diesel engines is about 167 g per hp hr, the best is only 150 g. per hp. hr. The author predicts that 145 g per hp hr can be attained, if some new techniques now under development can...

This paper starts from discussion of the social and political effects on truck design. Then the author reviews the future of truck design in technical as pects, stressing fuel economy. To improve fuel economy, the heat conversion efficiency of diesel engines must be first improved. The specific fuel consumption of current U. S. diesel engines is about 167 g per hp hr, the best is only 150 g. per hp. hr. The author predicts that 145 g per hp hr can be attained, if some new techniques now under development can be perfected and used in time during the next decade. Near term benefits can be obtained through research in lubricant to reduce frictional losses, and reducing accessories' power requirements, and supercharging intercooling, etc.Using radial tires, especially low profile wide singles, instead of conventional dual tires for the rear wheels will reduce truck rolling resistance and improve fuel economy 10-20%.Using cab top deflectors and improving the configuration of tractor's cab will reduce drag resistance 35% and improve fuel economy 15-17%。 So, in the next decade, with engine improvement of 100%, total fuel economy improvement of 47% can be obtained. Tractor-Semi-trailer combination with GCW of 36.3 T cruising on level road at 88 km/hr speed will have fuel consumption rate of 29.5 L/100 kmFor improvement in fuel economy, the regulations governing the GCWand length of truck trains must be and will be enlarged. The tare weight of trailers will also be reduced proportionally.

本文先从社会因素对货车设计的影响谈起。再讨论技术和结构方面的动向。作者认为今后货车的发展以节省燃油为主,方法是: 提高柴油机的热效率。目前美国柴油机每马力小时耗油量约为163克,最好的为150克。预期十年内随着现在处于发展阶段的技术完善之后,可望为145克。近期收益将从润滑油等的改进减少摩擦损失和附件驱动损火等和增压中冷中得到。 用子午线轮胎特别是后轮用宽断面单胎代替双胎可减少滚动阻力,节油10~20%。 用驾驶室顶部导流罩,改进驾驶室的外形等,可减少风阻35%,节油15~17%。 所以十年后如发动机节油10%,共可节油达47%。总重36.3吨的汽车列车在水平公路上以88公里/小时车速行驶时,耗油率将为29.5升/百公里。 为提高燃油经济性,提高汽车列车组合总重和列车长度是可能的和必要的。

In 4×4 tucks, the front wheel driving system will be driven rotating, even if the front wheel drive is disengaged; its frictional moments will increase fuel consumption.The authors have designed two new types of free-wheeling clutches, installed in the front wheel hubs. The clutch can be engaged or disengaged automatically, and the differential gears of the front axle can be dispensed with. So both the weight of the truck and the cost incured are not excessive with the benefit of reducing fuel consumption. These...

In 4×4 tucks, the front wheel driving system will be driven rotating, even if the front wheel drive is disengaged; its frictional moments will increase fuel consumption.The authors have designed two new types of free-wheeling clutches, installed in the front wheel hubs. The clutch can be engaged or disengaged automatically, and the differential gears of the front axle can be dispensed with. So both the weight of the truck and the cost incured are not excessive with the benefit of reducing fuel consumption. These clutches have been proved by testing, This design can be used in all all-wheel drive vehicles.

4×4汽车前轴不驱动时,其驱动系统也被反带动,其摩擦损失将增加燃油消耗量。有的车在前轮毂上安装离合器,需要司机下车操作,很不方便。本文介绍两种新型单向离合器,装在前轮毂上,可以自动控制,并代替前轴差速器,而重量和制造成本却增加不多,但可节省燃油消耗。这个设计可在所有全轮驱动汽车中推广使用。

Based on the electrometric experiments in paddy and simulative test in laboratory, the author, has in the aspects of soil deformation, motion of boat, force exerted on the boat body and data analysis, explored the slipping sinkage,slipping resistance and the effect caused by the no- minal pressure ratio of boat body. In the paper, the slipping sinkage is divided into two parts: the one is expressed by soil penetration parameters, and the other is the compensatory one owing to the cone size effect of penetrometer....

Based on the electrometric experiments in paddy and simulative test in laboratory, the author, has in the aspects of soil deformation, motion of boat, force exerted on the boat body and data analysis, explored the slipping sinkage,slipping resistance and the effect caused by the no- minal pressure ratio of boat body. In the paper, the slipping sinkage is divided into two parts: the one is expressed by soil penetration parameters, and the other is the compensatory one owing to the cone size effect of penetrometer. An empirical formula resulting from the experiments is introduced here. Analysis indicated that the compaction work principle or simple frictional resistance can not describle the slipping resistance correctly when in deep paddy. It is suggested that all factors, i.e. friction, sticking, hull-dozing and viscous drag constitute a multiple resistance. For simplification and practicality, the slipping resistance vs. nominal ground pressure ratio have been describled as a linear function from which an empirical, formula is obtained

本文是在田间电测试验的基础上,结合室内模型试验结果,从土壤变形、船体运动和受力、数据分析等方面探讨了机耕船船体的滑行下陷、滑行阻力,以及机耕船名义接地比压对它们的影响。文中将船体的滑行下陷分为用土壤承压参数和名义接地比压表示的部分,以及因测头尺寸影响的补偿部分,给出了结合本次试验结果的经验方程。分析表明,船体在深泥脚水田中的滑行阻力用压实功原理或单纯摩擦阻力来表示都是不恰当的,它是包含了摩擦、吸附、推挤、拖带等作用的综合阻力。从简便实用的角度考虑,本文由试验结果引出了滑行阻力与名义接地比压呈线性关系的经验方程。

 
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