Biomechanics_course_gw_04_static gw

Biomechanics_course_gw_04_static gw - Static Mechanics...

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Static Mechanics Definition of static mechanics A branch of mechanics: analysis of rigid bodies in equilibrium Equilibrium means At rest Constant velocity Static mechanics concerns with rigid bodies (no deformation) (In reality it is an approximation) It is also the basis For analysis of deformation and strength of material Force effect Deformation Translation Rotation

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Newton’s three laws of mechanics 1 st : a body remains at rest/constant velocity without external force 2 nd : Translation (or linear motion) F = m a Rotational (or angular motion) M = I α ; where I = mr 2 F : force m: mass of a particle a : acceleration M: moment I: mass moment of inertia α : angular acceleration r: shortest distance between the particle and the axis about which the mass moment of inertia is to be determined 3 rd : F = -F r
Conditions for equilibrium Equilibrium: acceleration a = 0 Static equilibrium:

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This note was uploaded on 02/08/2012 for the course BMEN 260 taught by Professor Mr.wang during the Spring '12 term at South Carolina.

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Biomechanics_course_gw_04_static gw - Static Mechanics...

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