Unit 9 AUTOMOBILE SUSPENSION SYSTEM. 蒋 芳 吴喜骊. Basic Content. Aims and Requirements New Words Phrases and Expressions Notes to the Text Specialized Knowledge Exercises. Aims and Requirements. Describe the functions of suspension system List the components of suspension system
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Unit 9 AUTOMOBILE SUSPENSION SYSTEM
蒋 芳 吴喜骊
Aims and Requirements
Phrases and Expressions
Notes to the Text
Describe the functions of suspension system
List the components of suspension system
List the types of suspension system
List the types of springs
Describe the parameters of wheel alignment
roll [rEul] n. 摇晃，摆动
lean [li:n] vi. 倾斜，偏向
strike [straik] vt. 撞击，冲击
bump [bQmp] n. 撞击，肿块
squat [skwCt]v. 蹲坐；n. 蹲坐
tilt [tilt] v.使倾斜，使翘起
dive [daiv] vi. 下潜，俯冲
alignment [E5lainmEnt]n. 队列，调正
knuckle [5nQkl] n. 关节，转向节
visualize [5vizjuElaiz]vt. 形象，想象
swivel [5swivl] v. 旋转
flex [fleks] vi. 折曲，弯曲
bounce [bauns] v.（使）反跳，弹起
sleeve [sli:v] n. 袖子，套筒，衬套
jounce [dVauns]v. 颠簸
rebound [ri5baund]v. 回弹
spiral [5spaiErEl]n. 螺旋
oscillation [7Csi5leiFEn]n. 摆动，振动
hump [hQmp] n. 小圆丘，峰丘
dampen [5dAmpEn]v. 使潮湿，使沮丧
restrain [ris5trein]vt. 抑制，制止
control arm 控制臂
ball joint 球节
shock absorber 减震器
independent suspension 独立悬架
nonindependent suspension 非独立悬架
coil spring 螺旋弹簧
leaf spring 钢板弹簧
torsion bar 扭力弹簧
 The suspension system works with the tires, frame or unit body, wheels, wheel bearings, brake system, and steering system.
 Before discussing each component in detail, you should be able to visualize each major part and how it functions in relation to the other parts.
 Since each wheel is attached to its own suspension unit, movement of one wheel does not cause direct movement of the wheel on the other side of the car.
 Coil springs may be used on either the front or rear of the car.
 A leaf spring is commonly made of flat plates or strips of spring steel bolted together.
Fig.9-1 Elementary parts of suspension system
Fig.9-2 Independent suspension
Fig.9-3 Nonindependent suspension
Fig.9-4 Shock absorber
(1) What are the functions of a suspension system?
(2) What are the components of a suspension system?
(3) How does the independent suspension work?
(4) How does the nonindependent suspension work?
(5) How many types do the suspension system springs have? What are they?
(6) Why does the suspension system need shock absorbers?
(7) How do the shock absorbers work?
(8) How is the coil spring made of?
(9) How does the torsion bar work?
(10) Can you describe the construction of the coil-spring suspension system?