REPORTING OUTLINE: CHAPTER 6
TWO DEGREE OF FREEDOM
SYSTEMS (2DOFS)



INTRO: What is Two Degree of
Freedom Systems
 Comparison of SDOFS and
2DOFS
 What is coupled forces
 Writing equation in matrix
form
 Review on matrix addition
and multiplication
 Derivation of equation of
motion
 What to expect in 2DOF
*Transition to undamped*
FREE UNDAMPED 2DOF:
 Definition
 Derivation
 Graph
 Example
 This part should include:
- Model vectors
- Mode Shapes
- Figuring out the natural
frequency
- Figure out homogeneous
Solution
FORCED VIBRATION ANALYSIS:
 Definition
 Derivation
 Graph
 Example
 This part should include:
- Model vectors
- Mode Shapes
- Figure out homogeneous
Solution

FREE VIBRATIONS WITH
VISCOUS DAMPING:
 Definition
 Derivation
 Graph
 Example
 This part should include:
- Model vectors
- Mode Shapes
- Figure out homogeneous
Solution

DYNAMIC VIBRATION
ABSORBER:
 Definition
 Derivation
 Graph
 This part should include:
- How to design a vibration
absorber

SIMPLIFIED SUSPENSION
SYSTEM (tentative)
 Definition
 Derivation
 Graph
 Example

SAMPLE PROBLEMS FROM
EACH PART
 Provide one sample problem
from your part