What is BS 7544 - Graphical presentation of damping materials about?
BS 7544 discusses damping materials. The aim of BS 7544 is to improve communication among the diverse technological fields concerned with vibration damping materials.BS 7544 establishes the graphical presentation of the complex modulus of viscoelastic vibration damping materials which are macroscopically homogeneous, linear, and thermorheologically simple. The complex modulus may be the shear modulus, Young’s modulus, bulk modulus, longitudinal wave propagation modulus, or Lamé modulus. This graphical presentation is convenient and sufficiently accurate for many vibration damping materials.
Note: Other possible sources of damping, such as plastic deformations in the joints, relative slip at joints, air pumping in the joints, acoustic radiation of energy, eddy current losses, etc., are not covered in BS 7544.
Who is BS 7544 - Graphical presentation of damping materials for?
BS 7544 on damping materials is relevant to:
- Damping materials manufacturers
- Shock-absorbing materials manufacturers
- Quality control and testing department  
Why should you use BS 7544 - Graphical presentation of damping materials?
Damping is one potential approach to reducing vibration levels in a structural system. Damping is the dissipation of vibratory energy by converting it into heat, as distinguished from transporting it to another part of the system. When the damping is due to internal energy dissipation within a material that is part of the structural system, and when the damping is of engineering significance, the material is called a vibration damping material.
BS 7544 provides a graphical representation of the complex modulus of damping materials. This helps which material is suitable for vibration damping is determined by the specifics of their intended application.
