Unit 9 automobile suspension system
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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

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Unit 9 automobile suspension system

Unit 9 AUTOMOBILE SUSPENSION SYSTEM

蒋 芳 吴喜骊


Basic content

Basic Content

Aims and Requirements

New Words

Phrases and Expressions

Notes to the Text

Specialized Knowledge

Exercises


Aims and requirements

Aims and Requirements

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


New words

New Words

suspension[sEs5penFEn]n. 悬吊,悬浮,悬挂

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


New words1

New Words

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


New words2

New Words

dampen [5dAmpEn]v. 使潮湿,使沮丧

restrain [ris5trein]vt. 抑制,制止


Phrases and expressions

Phrases and Expressions

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


Notes to the text

Notes to the Text

[1] The suspension system works with the tires, frame or unit body, wheels, wheel bearings, brake system, and steering system.

悬架系统连同轮胎、车架或车身、车轮、轮轴轴承、制动系统、转向系统一起工作。


Notes to the text1

Notes to the Text

[2] 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.

在详细讨论各个部件之前,你应清楚每一个主要部件的结构,以及它是如何与相关零件一块起作用的。


Notes to the text2

Notes to the Text

[3] 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.

因为每个车轮都与它自己的悬架单元相连,所以一个车轮的运动不会直接引起另一边车轮的运动。


Notes to the text3

Notes to the Text

[4] Coil springs may be used on either the front or rear of the car.

螺旋弹簧可以用于前悬架或后悬架。

[5] A leaf spring is commonly made of flat plates or strips of spring steel bolted together.

钢板弹簧通常采用螺栓连接的多块平板或带状弹簧钢制成。


Specialized knowledge

Specialized Knowledge

Fig.9-1 Elementary parts of suspension system


Specialized knowledge1

Specialized Knowledge

Fig.9-2 Independent suspension


Specialized knowledge2

Specialized Knowledge

Fig.9-3 Nonindependent suspension


Specialized knowledge3

Specialized Knowledge

Fig.9-4 Shock absorber


Specialized knowledge4

Specialized Knowledge

Fig.9-1 Caster

Fig.9-2 Camber


Specialized knowledge5

Specialized Knowledge

Fig.9-3 Toe


Exercises

Exercises

(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?


Exercises1

Exercises

(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?


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