The status of engineering knowledge concerning the damping of built-up structures

✍ Scribed by E.E. Ungar

• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 954 KB
• Volume: 26
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1016/s0022-460x(73)80210-x

✦ Synopsis

The importance of the effects of structural joints on the damping of built-up structures is pointed out, and the energy dissipation mechanisms associated with squeezing, rocking, and shearing motions are discussed for simple joints that are dry, lubricated, or provided with viscoelastic inserts. The damping mechanisms and behaviors of built-up beams and of skin-stringer structures are discussed as far as they are currently understood, and available damping estimation methods are summarized. Difficulties in defining and measuring the damping of skin-stringer structures are indicated, and it is pointed out that particularly the high-frequency damping of built-up beams and the low-frequency damping of skinstringer configurations require further investigation.