Supersonic Flutter of a Honeycomb Sandwich Panel with Cermet Constrained Layer under Moving Load Configuration

Author

Assistant Professor, Aerospace and Mechanical Engineerimg, Islamic Azad University, Firoozkooh Branch, Firoozkooh, Iran.

Abstract

In this paper, the effects of supersonic flutter and moving load are studied simultaneously on a honeycomb sandwich beam with a cermet covered layer. The core layer ratio is considered as a regular nomex honeycomb which has the high stiffness to weight ratio. Also cermet layer which has a high thermal strength is considered as aluminum oxide in mild steel matrix, for optimized fractional ceramic concentration. The structural formulation is based on the classical Euler-Bernoulli beam theory and the quasi-steady first order supersonic piston theory is employed to describe the aerodynamic loading. Hamilton’s principle in conjunction with the generalized Fourier expansions and Galerkin method are used to develop the dynamical model of the structural systems in the state-space domain. The critical dynamic pressures are obtained by p method for a honeycomb sandwich beam. Simulation results shows that using cermet layer as a constrained layer has an important role in postponding the flutter to higher dynamic pressures compared to the same sandwich layer with aluminum constrained layer. The thickness effect of cermet layer on flutter phenomena is also considered. Finally, in order to obtain efficeient operational results, the aeroelastic responses of honeycomb sandwich beam in supersonic regime under moving loads with different velocities are calculated.

Keywords


[1] Jordan PF (1956) The physical nature of panel flutter. Aero Digest 3:34-38.
[2] Song ZG, Li FM (2008), Active aeroelastic flutter analysis and vibration control of supersonic beams using the piezoelectric actuator/sensor pairs. Smart Mater Struc 20(55013).
[3] Samadpour M, Asadi H, Wang Q (2016) Nonlinear aero-thermal flutter postponement of supersonic laminated composite beams with shape memory alloys. Eur J Mech A-Solid 57(0): 18-28.
[4] Tsushima N, Su W (2017) Flutter suppression for highly flexible wings using passive and active piezoelectric effects. Aerosp Sci Technol 65(0): 78-89.
[5] Bahaadini R, Saidi A (2019) Aerothermoelastic flutter analysis of pre-twisted thin-walled rotating blades reinforced with functionally graded carbon nanotubes. Eur J Mech A-Solid 75(0): 285-306.
[6] Abdullatif M, Mukherjee R (2019) Divergence and flutter instabilities of a cantilever beam subjected to a terminal dynamic moment. J Sound Vib 1(1): 1-18.
[7] Chai YY, Song ZG, Li FM (2017) Active aerothermoelastic flutter suppression of composite laminated panels with time-dependent boundaries. Compos Struct 179: 61-76.
[8] Gee DJ, Sipcic SR (1999) Coupled thermal model for non-linear panel flutter. AIAA J 37(5): 624-649.
[9] Li H, Motamedi P, Hogan J (2019) Characterization and mechanical testing on novel (γ + α2) – TiAl/Ti3Al/Al2O3 cermet. Mat Sci Eng A-Struct 750: 152-163.
[10] Wang X, Gao J, Hua H, Zhang H, Liang L, Javaid K, Wang L (2017) High-temperature tolerance in WTi-Al2O3 cermet-based solar selective absorbing coatings with low thermal emissivity. Nano Energy 37: 232-241.
[11] Li F, Song Z, Sun C (2015) Aeroelastic properties of sandwich beam with pyramidal lattice core considering geometric nonlinearity in the supersonic airflow. Acta Mech Solida Sin 28(6): 639-646.
[12] Zhang ZJ., Han B, Zhang QC, Jin F (2017) Free vibration analysis of sandwich beams with honeycomb-corrugation hybrid cores. Compos Struct 171: 335-344.
[13] Song ZG, Li FM (2016) Flutter and buckling characteristics and active control of sandwich panels with triangular lattice core in supersonic airflow. Compos Part B-Eng 108: 334-344.
[14] Eloy F, Gomes G, Ancelotti JR A, Cunha JR, Bombard A, Junqueira D (2018) Experimental dynamic analysis of composite sandwich beams with magnetorheological honeycomb core. Eng Struct 176: 231-242.
[15] Boucher MA, Smith CW, Scarpa F, Rajasekaran R, Evans KE (2013) Effective topologies for vibration damping inserts in honeycomb structures. Compos Struct 106: 1-14.
[16] Sakar G, Bolat FC (2015) The free vibration analysis of honeycomb sandwich beam using 3D and continuum model. Int J Mech Mechatronics Eng  9(6): 1077-1081.

[17] Mukhopadhyay T, Adhikari SS (2016) Free-vibration analysis of sandwich panels with randomly irregular honeycomb core. J Eng Mech 06016008: 1-5.

[18] McAdam GD (1967) The mechanical properties of cermets with a metallic matrix. Powder Metall 10(20).
[19] Ruzzene M, Scarpa F (2003) Control of wave propagation in sandwich beams with auxetic core.J Intel Mater Sys Struct14:443-453.
[20] Mead DJ, Markus SS (1969) The forced vibration of a three-layer, damped sandwich beam with arbitrary boundary conditions. J Sound Vib 10(2): 163-175.
[21] Rao SS (2007) Vibration of continuous systems. 5th edn. John Wiley & Sons, Inc, New Jersey.
[22] Hasheminejad SM, Nezami M, Aryaee Panah ME (2012) Supersonic flutter suppression of electrorheological fluid-based adaptive panelsresting on elastic foundations using sliding mode control. Smart Mater Struct21(045005).
[23] Dorsey JT (2002) Metallic thermal protection system technology development: Concepts, requirements and assessment overview. 40th Aerospace Science Meeting, AIAA2002-0502.
[24] Esen I (2011) Dynamic response of a beam due to an accelerating moving mass using moving finite element approximation. Math Comput Appl 16(1): 171-182.