School of Mathematics and Statistics Xidian University Xi''an 710071China:2 School of Aeronautics Northwestern Polytechnical University Xi''an 710072;
China:2 School of Aeronautics Northwestern Polytechnical University Xi''an 710072;
School of Mathematics and Statistics Xidian University Xi''an 710071;
China:Department of Automation Lublin University of Technology Lublin PL-20-61&Poland;
stochastic excitation; time delay; viscoelastic isolation system; dynamical response;