Nonlinear Response of Double Wall Sandwich Panels

ABSTRACT An analytical study is presented to predict the nonlinear response of a double wall sandwich panel system that is subjected to random-type loading. Viscoelastic and nonlinear spring-dashpot models are chosen to characterize the behavior of the core. The nonlinear panel response is obtained by utilizing modal analyses and Monte Carlo simulation techniques. Numerical results include the response spectral densities, root-mean-square responses, and probability density function histograms. It is found that by proper selection of the dynamic parameters and damping characteristics, the structural response can be significantly reduced.

[1]  Rimas Vaicaitis.  Nonlinear Panel Response to Nonstationary Wind Forces , 1975 .

[2]  G. V. Anand,et al.  Non-linear response of a string to random excitation , 1974 .

[3]  Alfred M. Freudenthal,et al.  FORCED VIBRATIONS OF SANDWICH STRUCTURES , 1961 .

[4]  Masanobu Shinozuka,et al.  Monte Carlo solution of structural dynamics , 1972 .

[5]  Thomas K. Caughey,et al.  Derivation and Application of the Fokker-Planck Equation to Discrete Nonlinear Dynamic Systems Subjected to White Random Excitation , 1963 .

[6]  Chuh Mei,et al.  Large Amplitude Response of Complex Structures due to High Intensity Noise , 1979 .

[7]  V. V. Bolotin,et al.  Nonconservative problems of the theory of elastic stability , 1963 .

[8]  Masanobu Shinozuka,et al.  Response Analysis of Tall Buildings to Wind Loadings , 1975 .

[9]  R. Vaicaitis.  Noise transmission by viscoelastic sandwich panels , 1977 .

[10]  P. Lord,et al.  Sound transmission through sandwich constructions , 1967 .

[11]  Earl H. Dowell,et al.  Transmission of Noise from a Turbulent Boundary Layer through a Flexible Plate into a Closed Cavity , 1969 .

[12]  T. Caughey.  Nonlinear Theory of Random Vibrations , 1971 .

[13]  M. Shinozuka,et al.  Digital simulation of random processes and its applications , 1972 .

[14]  Response of Nonlinear Structures to Random Excitation , 1962 .

[15]  S. H. Crandall.  Perturbation Techniques for Random Vibration of Nonlinear Systems , 1963 .

[16]  S. Timoshenko,et al.  THEORY OF PLATES AND SHELLS , 1959 .

[17]  Masanobu Shinozuka,et al.  Nonlinear Panel Response from a Turbulent Boundary Layer , 1972 .

[18]  E. M. Krokosky,et al.  Dilatational‐Mode Sound Transmission in Sandwich Panels , 1969 .

[19]  Jinkyu Yang,et al.  On the normality and accuracy of simulated random processes , 1973 .

[20]  W. Iwan,et al.  Application of Statistical Linearization Techniques to Nonlinear Multidegree-of-Freedom Systems , 1972 .

[21]  J.-N. Yang,et al.  Simulation of random envelope processes. , 1972 .

[22]  Clive L. Dym,et al.  Transmission of sound through sandwich panels , 1974 .

[23]  R. Vaicaitis,et al.  Noise Transmission Through Nonlinear Sandwich Panels , 1983, Stochastic Structural Dynamics.

[24]  C. Chia.  Nonlinear analysis of plates , 1980 .