Pro/MECHANICA VIBRATIONS 

DURATION  

2 days

This course provides a bridge between the theory of Pro/Mechanical vibrations and a purely software specific training. Each hands-on exercise with Pro/MECHANICA is preceded by “light” theoretical treatment as necessary to understand the problem. Particular attention is given to the relation between modal and dynamic analyses and to the input data required in the Dynamic Analysis. In particular, the Acceleration Power Spectral Density and the Response Spectrum curves are generated hands-on to assure the understanding of concepts and correct interpretation results.

OBJECTIVES

To introduce concepts and tools used in the linear Dynamic Analysis with Pro/Pro/MECHANICA

To demonstrate the relation between Modal Analysis and Dynamic Analysis

To show typical application of:

• Modal analysis

• Pre-stress Modal Analysis

• Dynamic Time

• Dynamic Frequency

• Random Vibrations

• Dynamic Shock

To illustrate typical errors in Dynamic Analysis

BENEFITS

The seminar is intended for engineers who are familiar with Structural Analysis with Pro/MECHANICA and would like now to explore the field of Dynamic Analysis. You’ll be able to assess the if the Dynamic Analysis should be a part of your analysis project, specify Dynamic Analysis requirements and execute all types of analyses available in Pro/MECHANICA

WHO SHOULD ATTEND

You should attend if you are an engineer in research and development or designing, are familiar with Structural Analysis with Pro/MECHANICA and wish to upgrade your skills as an analyst to include the Dynamic Analysis.

SEMINAR CONTENT

Day 1

An overview of the Finite Element Method

FEM equations

Discretization error

Convergence process

h version and p version of the finite element method

Nodal Analysis

Formulation of eigenvalue problem

Resonance

Modal analysis used for qualitative evaluation of structural behaviour

Modelling supports in modal analysis

Modes of vibration in structures with symmetries, modes separation

Pre-stress modal analysis

Modal analysis as a pre-requisite to dynamic analysis

 

Time Response (Dynamic Time)

Modal damping

Mass participation factors

Time response examples

Frequency Response (Dynamic Frequency)

Primary and secondary components

Frequency response examples

Day 2

Random Vibrations (Dynamic Random)

PSD results

RMS results

Analysis in time domain and frequency domain

Generating acceleration Power Spectral Density function

White noise

Pink noise

Random vibrations examples

 

Response Spectrum Method (Dynamic Shock)

Earthquake time history

Response Spectrum method

Generating the Response Spectrum Curve

Methods of modes combination

Seismic analysis examples