Natural frequency and time response variation for forced vibrations of cracked Timoshenko beams

摘要: The aviation industry of the current era is dominated by profound utilization strengthened structures for a prolonged service life. High speed aircrafts are vulnerable to higher bending and torsional loads due rapidly fluctuating aerodynamic loads. need hour be aware loadings their implications on life beams. research paper focuses cracked Timoshenko beam. These beams can easily co-related with numerous inside wing fuselage aircraft. As first case, crack depth locations were varied observe variations in natural frequencies vibrating Following this, harmonic force (F0∗cos(wt)) was applied forced beam response observed at constant time. Subsequently, time varying extracted same different location. A variety loads, including rectangular pulse, impulse, blast, step ramp complete responses specific over It pertinent mention here that more severe than those farther from could used these and, subsequently, determining fatigue This analysis prove very fruitful field SHM (Structural health monitoring) durability materials accessed.