Transient Analysis of Rotating Beams with Varying Parameters Simulating the Foreign Object Damages
|International Journal of Mechanical Engineering|
|© 2018 by SSRG - IJME Journal|
|Volume 5 Issue 1|
|Year of Publication : 2018|
|Authors : Rathika, Amaresh Kumar|
Rathika, Amaresh Kumar, "Transient Analysis of Rotating Beams with Varying Parameters Simulating the Foreign Object Damages" SSRG International Journal of Mechanical Engineering 5.1 (2018): 31-45.
Rathika, Amaresh Kumar,(2018). Transient Analysis of Rotating Beams with Varying Parameters Simulating the Foreign Object Damages. SSRG International Journal of Mechanical Engineering 5(1), 34-45.
In the present work it is proposed to carry out Transient analysis of rotating beams with varying parameters simulating the foreign object damages using ANSYS. Transient analysis is used in the design of structures subjected to shock loads, such as automobile doors and bumpers, building frames, and suspension systems. The vibration characteristics of rotating structures such as natural frequencies and mode shapes should be well identified compared to the vibration characteristics of non rotating structures. The variation of results from the stretching induced by the centrifugal inertia force due to the rotational motion of the blades causes the increment of the bending stiffness of the structure. This results in the variation of natural frequencies and mode shapes. The analysis has been carried out by idealizing the compressor blade as a cantilever beam for the parameters keeping the notch height constant and the notch radius is varied 2 to 6mm in steps of 2mm. It is analyzed for various notch heights of 20mm, 50mm, 80mm, 120mm and 150mm for the said notch radii. To make sure that a given design can withstand Impact loads at different forcing frequencies.
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Transient analysis, Natural Frequencies, Mode Shapes, Notch Radius, etc.