Mechanical vibrations analysis on multibeams using fem

Abstract

Beam type structures are generally used in various branches of mechanical civil and aerospace engineering research work Vibration occurs due to unbalance in machine parts and this may cause severe damage to the entire system The system is made of several parts connected by beams Single beam two beam or three beam connected together are generally used for connecting the layers In recent applications multi beams with more constraints are used to connect the layers for support Two beam complex system with axial compressive loading and several constraint is an important technical improvement from the single beam system nowadays Two or more beam connected by flexible layer or spring mass system is called multi beam system There are generally three types of vibrations namely free forced and damped vibration The research work focusses on the forced vibration of simply supported multi beam system connected elastically under compressive axial load is to be investigated based on Bernoulli Eulers beam theory The problem was formulated and solved as two cases of simply supported beams with different constraints The motion of the system is defined by a homogeneous set of two partial differential equations and solution was arrived using Bernoulli Euler beam theory. newline