課程名稱︰工程力學
課程性質：系定必修
課程教師︰陳增壽
開課學院：
開課系所︰生工系
考試日期（年月日）︰96/11/14
考試時限（分鐘）：120
是否需發放獎勵金：是
（如未明確表示，則不予發放）
試題 :
1st Examination of Enginnering Mechanics 11-14-2007, PM 2:20~4:20
1.Replace the three forces acting on the shaft by a single resultant force.
Specify where the force acts, measured from end B. (25%)
p.133 Probs 3-88/89
2.Determine the tension in the cable and the horizontal and vertical
components of reaction of the pin A. The pulley at D is frictionless and
cylinder weighs 80 N (≒8kg). (25%)
p.163 Probs 4-9
3.The shaft is supported by a thrust bearing at A and a journal bearing at B.
Determine the x,y,z components of reaction at these supports and the
magnitude of force acting on the gear at C necessary to hold the shaft in
equilibrium. The bearing are in proper alignment and exert only force
reactions on the shaft. (25%)
p.182 Probs 4-36
4.The block brake consists of a pin-connected lever and friction block at B.
The coefficient of static friction between the wheel and the lever is μs =
0.3, and a torque of 5 N‧m is applied to the wheel. Determine if the brake
can hold the wheel stationary when the force applied to the lever is (a) P =
30 N, (b) P = 70 N. (25%)
p.199 Probs 4-52/53
圖來自 STATICS AND MECHANICS OF MATERIALS SI EDITION
R.C Hibbeler PEARSON Prentice Hall
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