Semester : SEMESTER 5
Subject : Mechanics of Machinery
Year : 2020
Term : SEPTEMBER
Branch : MECHANICAL ENGINEERING
Scheme : 2015 Full Time
Course Code : ME 301
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In the differential gear of a car shown in figure, the number of teeth on the
pinion A on the propeller shaft is 18 whereas the crown gear B has 90 teeth. If
the propeller shaft rotates 811200 rpm and the wheel attached to the shaft 5) has
a speed of 255 rpm, while the vehicle takes a turn, determine the speed of the
wheel attached to shaft 91.
Design a slider crank mechanism to coordinate three positions of the input crank
and the output slider for the following data using graphical method and explain
the procedure. 012 = 30°, يرد = 40mm, 0/3 = 60°, 813 = 96mm
Synthesize a four-bar linkage using Freudenstein’s equation to satisfy in one of
its positions. The specification of position 0, velocity ര and acceleration © are as
follows: 02 = 60°, ७2 = 5 rad/s; يه = 2 rad/s’; 04 = 90°; ہو = 2 rad/s; به = 7
rad/s”,
Synthesize a four-bar mechanism to generate a function y = 2 log x for 2
crank be 90°. Assume three precision points which are to be obtained from
Chebyshev spacing. Assume fixed link to be 30 mm long and 0, = 30° and @, =
60°.
Explain the procedure for any one of the methods to design a four link
mechanism to coordinate two positions of the input crank and the output rocker.
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