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Acceleration Analysis Lecture Notes Reference: Machines and Mechanisms Applied Kinematics by David H. Myszka
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Acceleration Analysis Acceleration analysis involves determining the amount that certain points on links of mechanism are either “speeding up” or “slowing down.” The amount of acceleration is critical property because of the inertial forces associated with it. Reference: Machines and Mechanisms Applied Kinematics by David H. Myszka
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Linear Acceleration of a Point Moving in a Straight Line Linear acceleration of a point is the change of linear velocity of that point per unit time. Reference: Machines and Mechanisms Applied Kinematics by David H. Myszka
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Linear Acceleration of a Point in General Motion The velocity of a point, moving in a general fashion, may change in two ways: The magnitude of the velocity can change over time. This is acceleration is termed tangential acceleration. 2. The directionof the velocity vector can change over time. This acceleration is termed normal acceleration. Reference: Machines and Mechanisms Applied Kinematics by David H. Myszka
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Acceleration of a Link Reference: Machines and Mechanisms Applied Kinematics by David H. Myszka
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Tangential Acceleration Reference: Machines and Mechanisms Applied Kinematics by David H. Myszka
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Normal Acceleration Reference: Machines and Mechanisms Applied Kinematics by David H. Myszka
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Example 1: The mechanism shown below is used in a distribution center to push boxes along a platform and to a loading area. The link is driven by an electric motor which, at the instant shown, has a velocity of 25 rad/sec and accelerates at a rate of 500 rad/sec2. Knowing that the input link has a length of 250 mm, determine the instantaneous acceleration of the end of the input link in the position shown. Reference: Machines and Mechanisms Applied Kinematics by David H. Myszka
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Analytical Solution Reference: Machines and Mechanisms Applied Kinematics by David H. Myszka
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Vector Addition Reference: Machines and Mechanisms Applied Kinematics by David H. Myszka
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