Module 3.1 – Shock Testing

Back to: VibrationVIEW Syllabus

For Demo Mode only.

Use the Hardware, Inputs, and System Limits configuration from Module 1.1.

1. Create an Advanced Shock Test

a. Select New Test > Shock.
b. Select Advanced.
c. Select Pulse and enter the following profile:

Output a 10 mS wide Positive Trapezoid shock pulse
with a peak amplitude of 5 G
Trapezoid ramps up in 2 mS
Trapezoid ramps down in 2 mS

Select the “Square shape (optimal solution for minimum velocity and displacement)” option

Allow up to 20% of the peak acceleration prior to the pulse
Allow up to 30% of the peak acceleration after the pulse

d. Select Schedule and Run Pulses for 100 pulses at 100% modifier with a 1-second pulse interval.
e. Select Limits and set the following parameters:

Starting Drive Limits

• • Select Auto in the drop-down list
  • Max Output: 2 V
  • Max System Gain: 10 V/G

Running Drive Limits

• • Max Output: 2 V
  • Max System Gain: 10 V/G

f. Select OK and save the test as StudentName_Shock.

2. Create the Graphs

Graph 1 Configuration

• • Graph Type: Acceleration Waveform
  • Control Loop Traces: Demand, Control, Tolerance, Abort
  • Input Channels: Ch1

Graph 2 Configuration

• • Graph Type: Acceleration vs. Freq.
  • Control Loop Traces: Demand, Control
  • Input Channels: Ch1
  • Point to Axis Limits and change the x-axis and y-axis to Log

3. Run the Test

a. Listen carefully to the sound (or lack of sound) produced by the test.
b. After the test is completed, save the data.

4. Create a Report

a. Select Report.
b. In the report, include the following information:

• • Customer information
  • VibrationVIEW screen

Questions

1. Describe the sound, if any, that you hear.
2. Explain the benefits of shock testing.

Answers in syllabus PDF.