Damping dependence on bolt torque for a simple frame structure.
- Norman F.
Damping quantifies the energy dissipation properties of a material or system under cyclic stress. Damping is also one of the most difficult properties of a mechanical structure to model using first principles (Ewins, 2002) . Damping in uniform metal structures is often low. In built up structures dissipation occurs at mechanical joints or through introduction of viscoelastic materials ( Ungar, 1973, Goodman, 1996) . Energy dissipation at joints, associated with microslip, macroslip and hystersis increases the total damping of a structure so built up structures virtually always have greater damping than structures composed of a single part . Since damping is sensitive to interface properties, damping is a good feature for quantifying interface condition.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 976534
- Report Number(s):
- LA-UR-03-0602; TRN: US201017%%682
- Resource Relation:
- Conference: Submitted to: International Modal Analysis Conference, February 5, 2003, Orlando, Florida
- Country of Publication:
- United States
- Language:
- English
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