At link abhe instant ground at pointvertical bc

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Unformatted text preview: lock that the right t pinned to shown, AB is A. Link and pinned is moving to is constrained to move on 2 a horizontal a speed of 10 instant shown, AB is vertical,at a rate ofC is moving to the right with with plane. At the m/sec and slowing down and point 3 m/sec . a speed of vC with this speed changing at a rate of vC . ˙ Find: At the instant shown, a) determine the angular velocity of links AB and BC. Write your answers as vectors. • Determine the angular velocity of links AB and BC. Write your answers as vectors. b) determine the angular acceleration of links AB and BC. Write your • Determine the angular acceleration of links AB and BC. Write your answers as vectors. answers as vectors. Find: For this position: B L r A C vC Use the following parameters in your analysis: r = 1 m, L = 2 m, vC = 10 m/s and vC = -3 m/s2 . ˙ You may solve the problem using the Method of Instant Centers and/or by adopting a vector approach. Planar Kinematics Homework Problems ME 274 Problem II-26 GI-38 : A mechanism is made up of links AB and BC and a wheel pinned to Homework iven I Chapter II: Planar Rigid Body Kinematics BC at the wheel’s center C. The wheel rolls without slipping on a horizontal surface. Link AB rotates counterclockwise with a constant rate of 3 Homework 2.C.2 rad/sec. At the instant shown, link AB is vertical. Find: Given: AAt the instant made up of links AB and BC and a wheel pinned to BC at the wheel’s mechanism is shown, center C. Theawheel rolls without angular on a horizontal surface. Link AB rotates counterclockwise ) determine the slipping velocities of link BC and the wheel. with a constant rate of ωAB . At the instant shown, link AB is vertical. b) determine the angular accelerations of link BC and the wheel. c) determine the velocity and acceleration of point E on the perimeter Find: For this position: of the wheel (at the instant shown, E is on the same horizontal • Determine lineangular velocity of link BC and the wheel. Write your answers as vectors. the as C). • Determine the angular acceleration of link BC and the wheel. Write your answers as vectors. Write your answers as vectors. B r d !AB E no slip L A C Use the following parameters in your analysis: r = 0.5 m, L = 2 m, d = 1 m and ωAB = 3 rad/s. You may solve the problem using the Method of Instant Centers and/or by adopting a vector approach....
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This document was uploaded on 02/18/2014.

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