An introduction to vibration tests

An introduction to vibration tests & systems
Duration: 2 days.

Course Description:

• An overview of a Vibration test system and fitting it to a spec
• Knowing the technical acronyms used in this field
• Tests profiles – Sine, Random and Shock – what are they and what are they good for
• Understanding and changing an existing test spec
• Kurtosis – a new method of testing
• Accelerometers – important characteristics

To whom this course is intended:

• Those who are new to vibration testing field.
• Those who are already deal with vibration test systems and wish to gain more knowledge.
• Those who are responsible with the preparation of test specifications.
• Those who are developing & manufacturing products that needs to be tested under a vibration tests.
• Those who are intend to purchase a vibration test system.

Agenda:
Day 1
General:
Reasons to do vibration tests
Tests types
Damage caused by vibration

Vibration test system overview:
Amplifier
Shaker
Vibration controller
Parameters that affect the selection of a shaker

Sine test profile:
Distance, Frequency and acceleration calculations
DOF explanation
Sine graph explanation
Scanning – according time or Octave/Decimal
Resonance Frequency

Random test profile:
Random Vs Sine
Determine amplitude and other points on a Random graph
Meaning of the slopes in the graph
Finding the needed level of Grms
Sigma clipping
DOF and allowed tolerances
Amplitudes and times changing on an existing graph

Day 2
A new method implementing Random test profile – Kurtosis

Classical Shock test profile:
Pre/Post pulse
Mil-std 810 shock experiments
Time and distance calculations
SRS  

Vibration adapters, head expanders and various fixtures

Accelerometers introduction

Notes:
1) At the end of the course each candidate will receive a certificate
2) payment covers the following – learning tuition, hardcopy course manual, 2 lunches, morning and afternoon refreshments.