Introduction to Engineering Mechanics

Introduction to Engineering Mechanics Dr. Wayne Whiteman Director of the Office of Student Services and Senior Academic Professional School of Mechanical Engineering

This course is an introduction to learning and applying the principles required to solve engineering mechanics problems.

School of Mechanical Engineering

Module 25 Learning Outcome 

Apply the 2D equilibrium equations to solve for the force reactions and moment reactions acting on a body.

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2D Static Equilibrium Equations

Vector Form

F  0 M

P

0

NOTE: P is any point we choose

Scalar Form 2D F  0 F  0 M  0 x

3 INDEPENDENT EQNS

y

P

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2D Equilibrium Example Determine the horizontal and vertical components of the force reactions at the supports for homogeneous slender bar AB. Neglect the thickness and weight of the beam.

F  0 F  0 M  0 x

y

P

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2D Equilibrium Example Determine the horizontal and vertical components of the force reactions at the supports for homogeneous slender bar AB. Neglect the thickness and weight of the beam.

F  0 F  0 M  0 x

y

P

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2D Equilibrium Worksheet #1 for practice Determine the force and moment reactions at the support for homogeneous bar AB. The weight of the bar is 100 lbs. Neglect the thickness of the beam.

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