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.
 Role of Foreign-Object Damage on Thresholds for High Cycle Fatigue in Ti-6Al-4V
 by J.O.Peters, O. Roder, B.L. Boyce, A. W. Thompson, and R. O. Ritchie
 The Effect of Ballistic Impacts on the High-Cycle Fatigue Properties of Ti-48al-2Nb-2Cr (Atomic percent) by s. l. draper, b. a. lerch, j. m. pereira, m. v. nathal, c. m. austin, and o. erdmann
 J.J Ruschau et al. / International Journal of Impact Engineering 25 (2001)
 Theoretical And Experimental Dynamic Analysis Of Fiber Reinforced Composite Beams V. Tita, J. de Carvalho and J. Lirani Dept. of Mechanical Engineering University of S. Paulo 13560-250 S. Carlos, SP. Brazil email@example.com,
 Harmonic Vibration Analysis Establishing, Identifying and eliminating harmful frequencies. By Vik Vedantham, CAE Specialist, 3DVision Technologies
 Harmonic Analysis Of Air-Compressor Vibrations
 Modal and Harmonic Analysis using ANSYS by David Herrin, Ph.D.
 University of Kentucky
 http://www.ni.com/events/tutorials/campus.htm ,FFT tutorial from National Instruments
 Leissa A. Vibration aspects of rotating turbo machinery blades. Applied Mechanics Reviews (ASME) 1981; 34(5):629 –635.
 Rao J. Turbo machine blade vibration. The Shock and Vibration Digest 1987; 19:3 10.
 .Dokainish M, Rawtani S. Vibration Analysis of Rotating Cantilever Plates. International Journal for Numerical Methods in Engineering 1971; 3:233–248.
 .Ramamurti V, Kielb R. Natural Frequencies of Twisted Rotating Plates. Journal of Sound and Vibration 1984; 97(3):429– 449.
 Experimental Modal Analysis Of A Turbine Blade M.L.J. Verhees DCT 2004.120
 www.lds-group.com, [Experimental modal analysis Case history]
 The Effect of A Concentrated Mass On The Modal Characteristics Of A Rotating Cantilever Beam H H.
Transient analysis, Natural Frequencies, Mode Shapes, Notch Radius, etc.