Finite Element AnalysisLecture 8

Dr./ Ahmed Nagib

April 30, 2016

Basics of Structural Dynamics

1. Lumped Mass Model

2. Single Degree of Freedom Model

Damped Free Vibration

Measuring Damping Coefficient

Viscous Damping Coefficient c is not an intrinsic property of material

3. Damping

Material Damping

4. Analysis Systems

Modal Analysis

Transient Structural Analysis

Harmonic Response Analysis

Explicit Dynamics

Response Spectrum Analysis

Random Vibration Analysis

Tutorial 7 – Transient Analysis of a Lifting Fork

Tutorial 7 – Transient Analysis of a Lifting Fork

Basics of Explicit Dynamics

1. Implicit Integration Methods

2. Explicit Integration Methods

3. Solution Accuracy

4. Integration Time Steps

5. Automatic Mass Scaling

6. Static Damping

Tutorial 8 – Drop Test

Tutorial 8 – Drop Test