A Dynamic Design Model for Teaching

There is a need to include inverse design problems of vibration engineering into undergraduate and postgraduate education of mechanical and structural engineers. It has not been hitherto possible due to lack of economical dynamic testing equipment and absence of several of dynamic design technologies. With the emergence of laboratory compatible modal testing equipment and the emergence of technologies like those of finite element model updating, structural dynamic modification, operational modal analysis and laser vibrometery it is now feasible to include dynamic design procedures into curriculum. The present paper proposes a dynamic design model based on three decades of research in the area. The paper discusses several cases of application to vibration engineering design employing the above mentioned emerging technologies. It then proposes a vibration design model which is well integrated with satisfaction of other design requirements and constraints of machines/ structures based on yield strength, fatigue strength, surface fatigue strength and other modes of failure. The concept of concurrent mechanical/ structural design to include dynamic soundness of the equipment/ structure is also discussed.