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DYNAMICS OF MACHINES MATRIALS

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  COURSE MATRIAL   UNIT – I - Force Analysis (1) Introduction: If the acceleration of moving links in a mechanism is running with considerable amount of linear and/or angular accelerations, inertia forces are generated and these inertia forces also must be overcome by the driving motor as an addition to the forces exerted by the external load or work the mechanism does. (2) Newton’s Law: First Law Everybody will persist in its state of rest or of uniform motion (constant velocity) in a straight line unless it is compelled to change that state by forces impressed on it. This means that in the absence of a non-zero net force, the center of mass of a body either is at rest or moves at a constant velocity. Second Law A body of mass m subject to a force F undergoes an acceleration a that has the same direction as the force and a magnitude that is directly proportional to the force and inversely proportional to the mass, i.e., F = m a . Alternatively, the total force applied on a bod
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DYNAMICS OF MACHINES QUESTION BANK

    UNIT-I (FORCE ANALYSIS) PART A 1. W hat i s f r ee bo d y d i ag r a m ? 2. De f i n e s ta t i c f o rc e ana l y s i s . 3. D i ff e r ent i a te b e t ween s ta t i c a n d d y na m i c eq u i l i b ri u m . 4. De f i n e a p p l i ed a n d c on s t r a i nt f o rc e s . 5. D i ff e r ent i a te b e t ween s ta t i c f o rc e ana l y s i s and d y na m i c f o rc e ana l y s i s . 6. De f i n e i ne r t i a f o rc e. 7. De f i n e i ne r t i a to r q ue. 8. S t ate D ’ A l e m be r t ’ s p r i n ci p l e. 9. S t ate the p r i n c i p l e of s u p e r po s i t i o n . 10. D e f i ne p i s ton e ff o r t. 11. D e f i ne cr ank e ff o r t and cr an k - p i n e ff o r t. 12. W hat i s m eant b y t u r n i ng m o m ent d i a g r am or cr a nk ef f o r t d i ag r a m ? 13. E x p l a i n the te r m m a x i m um f l u c tuat i o n of e n e r g y i n f l y wh e e l . 14. D e f i ne c oe
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