Free vibration analysis of a spinning porous nanocomposite blade reinforced with graphene nanoplatelets

Abstract

This paper investigated the modeling and free vibration characteristics of a spinning graphene nanoplatelet (GPL) reinforced porous nanocomposite blade. The blade is made of porous foam metal matrix reinforced with graphene nanoplatelets (GPLs). Several different GPL distributions and porosity distributions in the blade are taken into account. The effective material properties of the blade, determined via the open-cell scheme, the Halpin-Tsai model, and the rule of mixture, are assumed to be varying continuously along the its thickness direction. According to the Kirchhoff’s plate theory, the governing equations of the spinning blade are derived by adopting the Hamilton principle. On the other hand, the non-uniform spinning blade is modeled by the finite element method which is compared with the theoretical method. The theoretical results match very well with the finite element ones obtained from ANSYS. Particular focus is given to the effects of the spinning speed, porosity coefficient, distribution pattern of GPLs and porosities, GPL weight fraction, length-to-thickness ratio and length-to-width ratio of GPLs, blade length, and spinning radius on the free vibration performance of the blade rotor.

Tabu Genetic Cat Swarm Algorithm Analysis of Optimization Arrangement on Mistuned Blades Based on CUDA

“…e complete solutions are obtained in the end. e above mistuned system in Section 4.1 is optimized based on the algorithm in Section 3.2. e final optimization arrangement is obtained as follows: [2,10,16,22,29,9,11,8,34,17,24,33,37,6,14,26,21,20,3,27,13,38,28,35,7,1,32,30,15,31,23,5,4,12,18,36,19,25]. (19) e dynamic analysis method is based on the above.…”

“…Furthermore, more than 70% of these are caused by blades. e unbalanced vibration by reason of uneven vibration energy distribution is one of the main causes [1][2][3][4][5][6][7][8][9][10]. e bladed-disk system of aeroengine is a circular symmetric structure.…”

Free Vibration Analysis of a Graphene-Reinforced Porous Composite Plate with Different Boundary Conditions

“…Sharma et al [ 22 ] studied the effect of uncertainties in material and geometric parameters on the acoustic performance of a viscoelastic coating. Zhao et al [ 23 , 24 , 25 ] investigated the free vibration behaviors of a functionally graded (FG) disk-shaft rotor system, which was reinforced with a graphene nanoplatelet (GPL) that rested on elastic supports. Shafiei et al [ 26 ] studied the size-dependent nonlinear vibration behavior of FG porous microbeams using the improved coupling of the stress and Euler–Bernoulli theory, and evaluated the effects of uniform and non-uniform porosity.…”

Parameter Interval Uncertainty Analysis of Internal Resonance of Rotating Porous Shaft–Disk–Blade Assemblies Reinforced by Graphene Nanoplatelets

“…Graphene [ 4 , 5 ] is the most popular advanced material in the world because of its outstanding mechanical performance since being discovered. In recent years, GPLs, which have great reinforcing effect at low contents [ 6 ], have attracted a lot of attention [ 7 , 8 , 9 , 10 ]. Jie Yang, Sritawat Kitipornchai and their partners have contributed many achievements about the vibration characteristics of structures reinforced by GPLs [ 11 , 12 , 13 , 14 , 15 ].…”