Analysis methods to support design for damping

Methods are documented for active and passive damping studies with capabilities within NX I-deas and NX Nastran (http://www.ugs.com/products/nx/). The focus is on the methods that can be applied to a wide variety of products and design goals. Project examples are used to illustrate the methods and indicate the level of success obtained from real applications. Specific examples include passive damping for a liquid rocket engine, actuators for spacecraft interface that can suppress spacecraft response to launch vehicle vibration, active ceramic-fiber vibration suppression, constrained and free layer damping as well as the use of a secondary mode to increase effective damping or improve settling time of a manipulator arm.