汽车专业英语第五章第二节.ppt

Shock absorbers are filled with fluid. In operation, wheel movement causes the shock absorber to force this fluid through small openings (orifices). Since fluid can pass through restricted openings rather slowly, this puts a restraint on wheel and spring movement. The restraint imposed prevents excessive wheel movement. It also damps out the spring oscillations quickly after the hole or bump is passed. 减振器中充满油液，在行驶时，车轮的运动使减振器中的油液反复流过内腔的孔隙．由于油液通过受到限制的孔隙时，速度很慢，就对车轮和弹性元件的运动产生阻尼作用．这种阻尼作用避免了车轮的过度运动．在车辆经过坑洼地段时，能很快地衰减弹性元件的振动． The main types of Suspension system： Independent Suspension single transverse arm type（单横臂式） double transverse arm type（双横臂式） single trailing arm type（单纵臂式） double trailing arm type（双纵臂式） single oblique arm type（单斜臂式） sliding pillar type（烛式） MacPherson Strut type（麦弗逊式） multi-link type（多连杆式） 5.13 Wheels and Tires The main functions of tire： Absorb shocks resulting from irregularities in the road. Provide frictional contact between the wheels and the road so that good traction is secured. This permits the transmitting of power through the tires to the road for rapid accelerating, combats the tendency of the car to skid on turns and allows quick stops when the brakes are applied. There are two basic types of tires－those with inner tubes and those without (called “tubeless” tires). Most modern automobile tires are of the tubeless type. Truck and bus tires are usually of the tube type. 轮胎有两种基本类型－有内胎轮胎和无内胎轮胎．大多数现代汽车轮胎是无内胎的．卡车和公共汽车轮胎一般是有内胎的． CHAPTER 5 STEERING AND SUSPENSION SYSTEM 5.6 Overview of Suspension The function of Suspension system: Flexibly connect the wheels to the body Deliver the power and moment from the road to the body Damp out the spring oscillations quickly The suspension covers the arrangement used to connect the wheels to the body. The purpose is to prevent large shocks, caused by the wheels striking bumps in the road, being passed to the vehicle occupants and components; otherwise discomfort and damage would occur. 悬架是车轮（车桥）与车身（车