A computer‐based system for representation of damping properties of materials

The design of a computer‐based damping data and design system (DDDS) is described. Important features of the system are: modularity, standardized interfaces between modules based on defined information content, ease of expansion, physically based representation of material dynamic modulus, support for all users from test through analysis, and quality control to treatment design. System architecture and module function are described, followed by a detailed discussion of the material representation module. The input for this module is material test data, and the output is a set of analytic expressions for the frequency and temperature dependence of the material. The software for this module is based on the work of Rogers [J. Rheol. 27, 351–372 (1983)], which provides a rheologically consistent analytic function representation for the dynamic modulus and loss factor. The module is written within RS/1, a table‐oriented, scientific software system. Damping treatment design software and approaches to system dat...