Dynamics Dynamics of of Mechanical Systems Mechanical Systems MST @ MSU 2006 Jeff Rhoads and Terry Ballinger Jeff Rhoads and Terry Ballinger
Dynamics of Mechanical Systems MST @ MSU 2006 Jeff Rhoads and Terry Ballinger.
Dec 22, 2015
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DynamicsDynamicsofof
Mechanical SystemsMechanical Systems
MST @ MSU
2006
Jeff Rhoads and Terry BallingerJeff Rhoads and Terry Ballinger
OutlineOutline
What is Dynamics?What is Dynamics?KinematicsKinematicsKineticsKineticsNewton’s Second LawNewton’s Second LawToday’s ActivityToday’s Activity
What is Dynamics?What is Dynamics?
What is Dynamics?What is Dynamics?
Scientific DefinitionScientific Definition
A scientific discipline that deals with A scientific discipline that deals with systems undergoing changeundergoing change
What is Dynamics?What is Dynamics?
Scientific DefinitionScientific Definition
Engineering DefinitionEngineering Definition
A scientific discipline that deals with A scientific discipline that deals with systems undergoing changeundergoing change
Deals with the relationship between Deals with the relationship between forces and and motion of mechanical systems of mechanical systems
What is Dynamics?What is Dynamics?
Dynamics
What is Dynamics?What is Dynamics?
Dynamics
Kinematics
What is Dynamics?What is Dynamics?
Dynamics
Kinematics
The study of The study of motion (mathematical construct)
What is Dynamics?What is Dynamics?
Dynamics
KineticsKinematics
The study of The study of motion (mathematical construct)
What is Dynamics?What is Dynamics?
Dynamics
KineticsKinematics
The study of The study of motion (mathematical construct)
Relates Relates forces and and motion (based on physical law)
KinematicsKinematics
The study of The study of motion
KinematicsKinematics
The study of The study of motion
Position Velocity Acceleration
KinematicsKinematics
Position Velocity Acceleration
The study of The study of motion
Spatial Location
Origin
Object
KinematicsKinematics
Position Velocity Acceleration
The study of The study of motion
Rate of change of position (movement, can see it)
KinematicsKinematics
Position Velocity Acceleration
The study of The study of motion
Rate of change of velocity (can feel it)
KineticsKinetics
Relates Relates forces and and motion
KineticsKinetics
Relates Relates forces and and motion
Newton’s Second Law
KineticsKinetics
Relates Relates forces and and motion
Newton’s Second Law
Force Mass Acceleration
KineticsKinetics
Relates Relates forces and and motion
Newton’s Second Law
Force Mass Acceleration
Action
Resistance
Motion
KineticsKinetics
Relates Relates forces and and motion
Newton’s Second Law
Force Mass Acceleration
Action
Resistance
Motion
F m
a
Today’s ActivityToday’s Activity
Popsicle Stick Slingshot
ObjectiveCreate a slingshot that will propel a ping pong ball as far as possible.
Design ConsiderationsDesign Considerations Convert as much of the rubber band (elastic
potential) energy into kinetic energy of the ball. Have a strong and stable enough structure to support
the force of the rubber band. What is the best possible way to launch the ball?
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