Q1. In a link work, as shown in Fig. below, the crank A B rotates about A at a uniform speed of 150 r.p.m. The lever DC oscillates about the fixed point D, being connected to A B by the connecting link BC. The block F moves, in horizontal guides being driven by the link EF, when the crank A B is at 30°. The dimensions of the various links are: A B = 150 mm; BC = 450 mm; CE = 300 mm; DE = 150 mm; and EF = 350 mm. Find, for the given configuration, find 1- angular acceleration of link DC, and 2- acceleration of slider F.

Q1. In a link work, as shown in Fig. below, the crank A B rotates about A at a uniform speed of 150 r.p.m. The lever DC oscillates about the fixed point D, being connected to A B by the connecting link BC. The block F moves, in horizontal guides being driven by the link EF, when the crank A B is at 30°. The dimensions of the various links are: A B = 150 mm; BC = 450 mm; CE = 300 mm; DE = 150 mm; and EF = 350 mm. Find, for the given configuration, find 1- angular acceleration of link DC, and 2- acceleration of slider F.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Q1. In a link work, as shown in Fig. below, the crank A B rotates about A at a uniform speed of
150 r.p.m. The lever DC oscillates about the fixed point D, being connected to A B by the
connecting link BC. The block F moves, in horizontal guides being driven by the link EF, when
the crank A B is at 30°. The dimensions of the various links are: AB = 150 mm; BC = 450 mm; CE
= 300 mm; DE = 150 mm; and EF = 350 mm. Find, for the given configuration, find 1- angular
acceleration of link DC, and 2- acceleration of slider F.
75 mm
www
450 mm
37,5 mm
A

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show all steps and solution. mechanics of machines problem
The mechanism below has a crank that revolves clockwise at point O at a speed of 2000 rpm. Using vector diagrams, determine: a) The linear velocity of the piston and the angular velocity of the link AB about A. b) The angular acceleration of the link AB about A and the inertial resistance produced by the piston. c)Using trigonometry, confirm your results for the velocity in parts (i), explain your reasons behind which method is preferable, and identify the error margin for your velocity answers.
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