SAWTOOTH AND HALF-SINE SHOCK IMPULSES FROM THE NAVY SHOCK MACHINE FOR MEDIUMWEIGHT EQUIPMENT
Abstract
A shock test is frequently specified as an acceleration pulse of controlled shape and magnitude and which has a desired shock spectrum. A description is given as to how the Navy High Impact Shock Machine for Medium weight Equipment can be made to provide acceleration pulses of a half-sine or sawtooth shape by inserting elastic or plastic materials between various impacting surfaces. Details as to the shape of the inserts are given for nominal 6-millisecond sawtooth pulses having amplitudes up to 60 g, and for relatively long (10-20 milliseconds) low-amplitude half-sine pulses. A maximum velocity-change up to 8ft/sec is possible. The acceleration amplitudes involved in stopping the anvil are generally small compared with the initial pulses. Displacements are limited to 3 inches.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 03, 1963
- Accession Number
- AD0408280
Entities
People
- E. W. Clements
- I. Vigness
Organizations
- United States Naval Research Laboratory