Advances in aircraft and spacecraft science

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

A load-bearing structural element with energy dissipation capability under harmonic excitation

  • Pontecorvo, Michael E. (Rensselaer Polytechnic Institute) ;
  • Barbarino, Silvestro (Rensselaer Polytechnic Institute) ;
  • Gandhi, Farhan S. (Rensselaer Polytechnic Institute) ;
  • Bland, Scott (NextGen Aeronautics Inc.) ;
  • Snyder, Robert (NextGen Aeronautics Inc.) ;
  • Kudva, Jay (NextGen Aeronautics Inc.) ;
  • White, Edward V. (The Boeing Company)
  • Received : 2014.05.08
  • Accepted : 2014.07.09
  • Published : 2015.07.25
⟨ Previous Next ⟩

Abstract

This paper focuses on the design, fabrication, testing and analysis of a novel load-bearing element with energy dissipation capability. A single element comprises two von-Mises trusses (VMTs), which are sandwiched between two plates and connected to dashpots that stroke as the VMTs cycle between stable equilibrium states. The elements can be assembled in-plane to form a large plate-like structure or stacked with different properties in each layer for improved load-adaptability. Also introduced in the elements are pre-loaded springs (PLSs) that provide high initial stiffness and allow the element to carry a static load even when the VMTs cannot under harmonic disturbance input. Simulations of the system behavior using the Simscape environment show good overall correlation with test data. Good energy dissipation capability is observed over a frequency range from 0.1 Hz to 2 Hz. The test and simulation results show that a two layer prototype, having one soft VMT layer and one stiff VMT layer, can provide good energy dissipation over a decade of variation in harmonic load amplitude, while retaining the ability to carry static load due to the PLSs. The paper discusses how system design parameter changes affect the static load capability and the hysteresis behavior.

Keywords

References

  1. Avramov, K.V. and Mikhlin, Y.V. (2006), "Snap-through truss as an absorber of forced oscillations", J. Sound Vib., 290, 705-722. https://doi.org/10.1016/j.jsv.2005.04.022
  2. Barbarino, S., Pontecorvo, M.E. and Gandhi, F.S. (2012), "Energy dissipation of a bi-stable von-Mises truss under harmonic excitation", Proceedings of the 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Honolulu, HI, April.
  3. Blair, K.B., Krousgrill, C.M. and Farris, T.N. (1992), "Nonlinear dynamic response of shallow arches", Proceedings of the 33rd AIAA/ASME/ASCE/ASC Structures, Structural Dynamic and Material Conference, April.
  4. Diaconu, C.G., Weaver, P.M. and Mattonni, F. (2007), "Solutions for morphing airfoil sections using bistable laminated composite structures", AIAA Structures, Structural Dynamics, and Materials Conference, April.
  5. Gandhi, F.S. and Wolons, D. (1999), "Characterization of the pseudoelastic damping behavior of shape memory alloy wires using complex modulus", Smart Mater. Struct., 8, 49-56. https://doi.org/10.1088/0964-1726/8/1/005
  6. Howell, L.L. (2001), Compliant Mechanisms, John Wiley & Sons.
  7. Jensen, B.D. and Howell, L.L. (2004), "Bistable configurations of compliant mechanisms modeled using four links and translational joints", J. Mech. Des., 126(4), 657-666. https://doi.org/10.1115/1.1760776
  8. Jensen, B.D., Parkinson, M.B., Kurabayashi, K., Howell, L.L. and Baker, M.S. (2001), "Design optimization of a fully-compliant bistable micro-mechanism", Ann Arbor MI, 48109, 2125.
  9. Johnson, T., Gandhi, F.S. and Frecker, M. (2010), "Modeling and experimental validation of a bistable mechanism for chord extension morphing rotors", Proc. SPIE 7643, Active and Passive Smart Structures and Integrated Systems 2010, 76432B, doi:10.1117/12.847661.
  10. Kounadis, A.N., Raftoyiannis, J. and Mallis, J. (1989), "Dynamic buckling of an arch model under impact loading", J. Sound Vib., 134(2), 193-202. https://doi.org/10.1016/0022-460X(89)90648-2
  11. Lazan, B.J. (1969), Damping of Materials and Members in Structural Mechanics, 1st Edition, Pergamon, Oxford.
  12. Mises, R. (1923), "Uber die stabilitatsprobleme der elastizitatstheorie (About the stability problems of elasticity theory)", Zeitschrift Angewandte Mathematik und Mechanik, 3, 406-462. https://doi.org/10.1002/zamm.19230030602
  13. Murray, G.J. and Gandhi, F.S. (2011), "The use of damping to mitigate violent snap-through of bistable systems", Proceedings of the ASME 2011 Conference on Smart Materials, Adaptive Structures & Intelligent Systems (SMASIS), Phoenix, Arizona, USA, September.
  14. Padthe, A.K., Chaturvedi, N.A., Bernstein, D.S., Bhat, S.P. and Waas, A.M. (2008) "Feedback stabilization of snap-through buckling in a preloaded two-bar linkage with hysteresis", Int. J. Nonlin. Mech., 43, 277-291. https://doi.org/10.1016/j.ijnonlinmec.2007.12.010
  15. Timoshenko, S.P. (1936), Theory of Elastic Stability, McGraw-Hill.