fIlNZ1fl1n"2JfII1a"i
A'" .• ~
2J"1~~1aOa~~a1Ufll'U~'
nT~"'tJutl"1Hn1fl t1'~~1.n1flm,;;n~n~ (9)
'" ..I
..
1'U~ti'VI(9)0 ~"1fl2J~. Pl.\!)<t<t<t
1"111\!)(9)~Q1\!)<E :
.. .. '"
n"Pl1"'~'Lfl'tJ~'Jmn"
n"1 (9)Q1.GOo-(9)D.Q10
~tJ~"'tJU S817,~1~'UV'U~
'U.
,
I"ha~
'Pl.~'. 1'lti
.. .{
1~'VItiL~ti1~Q'
II II
~tJtJn"lltJ"'tJu
Ie .-
f'J~IJ,UUl'lll II
(9) \!)o
\!) l!:>o
GO I!>o
c£ 1!J0
<t I!>o
'1~ (9)00
< >..\:.
1) In the mechanism shown, link 2 is having angular velocity of 5 radls clockwise, and angular acceleration
2
of 10 radls clockwise. Find the acceleration of point B and angular acceleration of link 3.
2) The planetary gear set consists of gears 2, 4, 5, 6 and a planet carrier 3 as shown. If the numbers of
teeth of the gears are as follows; N2 = 40T, N4 = 15T, Ns = 10T and Na = aOT. The shaft of gear 2 is the
input and rotates at 200 rpm clockwise, while gear 6 is fixed. What is the speed and direction of rotation of
the planet carrier 3?
3) The mechanism is in static equilibrium at this position, with Po = 40 N acting at point 0 on link 4 as
shown. Use graphical method to determine the magnitude and direction of the vertical load Pa acting at
point B on link 3. Also draw force vectors on the given free body diagrams of each link. The dimensions are
given as RA02 = 20 mm, RAB = 50 mm, RAc = 50 mm, Rac = 20 mm, R0204 = 40 mm, Rc04 = 40 mm,
RD04 = 30 mm, Roc = 20 mm.
2
Q---~Q
A 0
z
4) The mechanism consists of link ABC and 2 frictionless pins at A and B with neglegible weight. Point A is
moving at a constant speed 30 mmls to the right. The velocity and acceleration analysis diagrams are
2
given as shown. If the centroid of link ABC is at B with mass of 2 kg, and IG = 3000 kg.mm • Determine
the force P acting perpendicular to link ABC at C to cause this motion.
5) The figure shows a system with three masses on a rotating shaft; m1 = 0.1 kg at 90° and radius R1 = 30
mm, m2 = 0.2 kg @ 240° and radius R2 = 30 mm, and m3 = 0.15 kg @ 00 and radius R3 = 20 mm.
Determine the magnitude and direction of the balance masses needed to dynamically balance the rotor.
The balance masses will be placed in planes 4 and 5 at a 30 mm radius.
