Article thumbnail
Location of Repository

A study of joint damping in metal plates

By S.J.I. Walker, G.S. Aglietti and P.R. Cunningham


For satellite applications the determination of the correct dynamic behaviour and in particular the structural damping is important to assess the vibration environment for the spacecraft subsystems and ultimately their capability to withstand the launch vibration environment. Therefore, the object of this investigation is to experimentally analyse a range of aluminium panel configurations to study the effect of joints on the damping of the complete structure. The paper begins with a full description of the experimental method used to accurately determine the modal loss factors for each of the panel configurations analysed. Nine different panels were used in the experimental tests, six of which incorporate lap joints variations. The joint parameters investigated include fastener type, bolt torque, fastener spacing, overlap distance and the effect of stiffeners. The damping results of ten different joint variants are presented for each of the first twelve modes of vibration. This data is directly compared to the damping factors of an equivalent monolithic panel. Various specific conclusions are made with respect to each of the joint parameters investigated. However, the primary conclusion is that the mode shape combined with the joint stiffness and joint location can be suggestive as to the likely magnitude increase of the modal loss factor

Topics: TA, TL
Year: 2006
OAI identifier:
Provided by: e-Prints Soton
Sorry, our data provider has not provided any external links therefore we are unable to provide a link to the full text.

Suggested articles


  1. (1962). An Outline of Statistics,
  2. (2004). Damping Identification in Linear Vibration,
  3. (2006). Experimental Analysis of Damping Across Joints
  4. (1992). Noise and Vibration Control Engineering: Principles and Applications,
  5. (1992). Non traditional application of damping measurements,”
  6. (2003). The damping analysis of concrete beams under free-vibration,”
  7. (1985). The use of the sonogram in structural acoustics and an application to the vibrations of cylindrical shells,”
  8. (1966). Theoretical estimation of the frictional energy dissipation in a simple lap joint,”

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.