Shock and Vibration Performance of an Epoxy Chocking Compound Chockfast Orange, PR-610CF (Philadelphia Resins Corp.)
Abstract
In recent years, some equipment items have been installed on board Navy combatant vessels with chocks cast from epoxy chocking compounds. Since Navy combatants are characterized by severe shock and vibration environments, it is necessary to demonstrate that epoxy chocks can tolerate such environments. This report describes a series of tests in which structures resembling shipboard equipment items in mechanical features were mounted on epoxy chocks cast from one of the commercially available compounds. These structures were subjected to shock and vibration tests in accordance with the specifications required for acceptance of equipment items for installation on Navy combatants. These tests had no effect on the chocks which would be likely to impair their function. Damage was limited to some minor cracking and fragmentation which did not extend into load-bearing areas. It is conceivable, however, that installation between very flexible members could lead to more wide-spread cracking and fragmentation. The use of chocks of any description may also have the effect of introducing a spring element into the equipment foundation, and the potential influence of this on the equipment response to shock and vibration excitation should be considered. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1978
- Accession Number
- ADA058589
Entities
People
- E. W. Elements
Organizations
- United States Naval Research Laboratory