DESIGN OF SIMULATION SYSTEM FOR STRUCTURAL DYNAMIC OPTIMIZATION OF MECHANICAL STRUCTURES

Mechanical Engineering

2nd National Conference on Recent Trends & Innovations in Mechanical Engineering

Various structures used in aerospace, automotive, naval and other industrial applications will experience vibration during their service mount condition. Response of a structure to the input vibration will be dictated by three dynamic parameters namely mass (M), stiffness (K) and damping (C). Proper combination of these critical parameters needs to be chosen while configuring particular structure otherwise input vibration energy gets amplified to a greater extent and drives the structure towards catastrophic failure. As of now no practical means are available to evolve optimal combination of above mentioned dynamic parameters. This paper proposes design of a dynamic simulation system which offers a promising solution to have various combinations of mass, stiffness and damping over a specified range. Further intended device can be excited with desired frequency and amplitude by mounting it on a vibrator and response of the device can be measured and quantified for a specified input. With the proposed simulator optimal combination of dynamic parameters can be evolved which becomes input to conFig. The design of a particular structure. To begin with base line configuration of the proposed simulation system is worked out for the purpose of conceptual demonstration and also to identify the subsystems. Subsequently sizing of all these subsystems is arrived at using design calculations. Assembled configuration of the system is worked out using 3D CAD modeling software.

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