Second Semester 2018/2019
Theory of Machines ІІ (323MEng)
Midterm Exam I , Model B
Time Allowed : 2 Hour
Student Name:
Student ID:
___________________________________________________________________________
Problem 1 : In the mechanism shown below, link 4 is moving to the left at the rate of 122
cm/s (constant). Write the appropriate vector equations, solve them using vector
polygons, and
a) Determine ω2 , ω3
and ω4
b) Determine α2 , α3
and α4
Link lengths: AB =
305 cm, BC = 610 cm
mV = 20 cm/s ,
mA = 2 cm/s2.
259 cm
Page 1 of 5
Second Semester 2018/2019
Theory of Machines ІІ (323MEng)
Midterm Exam I , Model B
Time Allowed : 2 Hour
Student Name:
Student ID:
___________________________________________________________________________
Problem 2 : Check the results obtained in Problem 1 using loop closure equation.
Page 2 of 5
Second Semester 2018/2019
Theory of Machines ІІ (323MEng)
Midterm Exam I , Model B
Time Allowed : 2 Hour
Student Name:
Student ID:
___________________________________________________________________________
Problem 3 : Force P is given, find moment M12 and shaking force by analytical method.
M12
Page 3 of 5
Second Semester 2018/2019
Theory of Machines ІІ (323MEng)
Midterm Exam I , Model B
Time Allowed : 2 Hour
Student Name:
Student ID:
___________________________________________________________________________
Page 4 of 5
Second Semester 2018/2019
Theory of Machines ІІ (323MEng)
Midterm Exam I , Model B
Time Allowed : 2 Hour
Student Name:
Student ID:
___________________________________________________________________________
Page 5 of 5