NEHRP Clearinghouse

displaying 21 - 30 results in total 49

  • Lin, R. C.; Soong, T. T.; Reinhorn, A. M.
    Experimental Evaluation of Instantaneous Optimal Algorithms for Structural Control.
    National Science Foundation, Washington, DC., April 20, 1987, 64 p.
    Identifying Number(s): NCEER-87-0002
    Keywords: ; Structures; Feedback control; Computerized simulation; Algorithms; Automatic control; Seismology; Earthquakes

  • Yang, J. N.; Akbarpour, A.
    Practical Considerations for Structural Control: System Uncertainty, System Time Delay, and Truncation of Small Control Forces.
    National Science Foundation, Washington, DC., August 10, 1987, 159 p.
    Identifying Number(s): NCEER-87-0018
    Keywords: Sensitivity analysis; Riccati equation; Structural control; Algorithms; Graphs (Charts); Earthquake engineering; Time lag; Uncertainty; Optimal control; Control systems; Structural analysis

  • Cheng, F. Y.; Pantelides, C.
    Algorithm Development for Using Optimal Control in Structural Optimization Subjected to Seismic and Wind Forces.
    National Science Foundation, Washington, DC.; National Center for Earthquake Engineering Research, Buffalo, NY., January 1988, 296 p.
    Identifying Number(s): STRUCTURAL SER-88-1-15
    Keywords: Numerical analysis; Earthquake resistant structures; Wind (Meteorology); Algorithms; Damping; Structural design; Graphs (Charts); Earthquake engineering; Stiffness; Displacement; Loads (Forces)

  • Tong, M.; Liang, Z.; Lee, G. C.
    Physical Space Solutions of Non-Proportionally Damped Systems.
    National Science Foundation, Washington, DC., January 15, 1991, 68 p.
    Identifying Number(s): NCEER-91-0002
    Keywords: ; Numerical analysis; Structural vibration; Seismic waves; Algorithms; Damping; Mathematical models; Dynamic response; Earthquake engineering; Energy dissipation; Vibration damping; Dynamic structural analysis

  • Darragh, R. B.
    Analysis of Near-Source Waves: Separation of Wave Types Using Strong Motion Array Recordings.
    National Science Foundation, Washington, DC., June 1988, 160 p.
    Identifying Number(s): UCB/EERC-88/08
    Keywords: ; Surface waves; Seismic waves; Seismic detection; Algorithms; Seismic arrays; Mathematical models; Wave propagation; Frequencies; Seismographs; Accelerometers; Earthquakes

  • Somaprasad, H. R.; Toksoy, T.; Yoshiyuki, H.; Aktan, A. E.
    Closed-Loop Modal Testing of a 27-Story Reinforced Concrete Flat Plate-Core Building.
    National Science Foundation, Washington, DC., July 15, 1991, 148 p.
    Identifying Number(s): NCEER-91-0016
    Keywords: Closed loop modal tests; Reinforced concrete; Structural vibration; Algorithms; Data acquisition; Dynamic response; Buildings; Concrete structures; Earthquake engineering; Vibration damping; Resonant frequency; Foundations; Signal processing; Loads (Forces); Structural analysis

  • Yang, J. N.; Li, Z.; Danielians, A.
    Hybrid Control of Seismic-Excited Nonlinear and Inelastic Structural Systems.
    National Center for Earthquake Engineering Research, Buffalo, NY.; National Science Foundation, Washington, DC., August 1, 1991, 123 p.
    Keywords: ; Numerical analysis; Earthquake resistant structures; Rigid structures; Structural vibration; Feedback control; Seismic waves; Algorithms; Mathematical models; Earth movements; Dynamic response; Earthquake engineering; Vibration damping; Vibration isolators; Bearings; Nonlinear systems; Dynamic structural analysis

  • Yang, J. N.; Li, Z.
    Instantaneous Optimal Control for Linear, Nonlinear and Hysteretic Structures - Stable Controllers.
    National Center for Earthquake Engineering Research, Buffalo, NY.; National Science Foundation, Washington, DC., November 15, 1991, 57 p.
    Keywords: ; Seismic waves; Matrices (Mathematics); Algorithms; Controllers; Mathematical models; Lyapunov functions; Dynamic response; Earthquake engineering; Vibration damping; Vibration isolators; Nonlinear systems

  • Ghanem, R. G.; Gavin, H.; Shinozuka, M.
    Experimental Verification of a Number of Structural System Identification Algorithms.
    National Science Foundation, Washington, DC., September 18, 1991, 423 p.
    Identifying Number(s): NCEER-91-0024
    Keywords: ; Kalman filters; Structural vibration; Seismic waves; Algorithms; Least squares method; Mathematical models; Verification; Dynamic response; Earthquake engineering; Earthquakes; Dynamic structural analysis

  • Grigoriu, M.; Balopoulou, S.
    Simulation Method for Stationary Gaussian Random Functions Based on the Sampling Theorem.
    National Science Foundation, Washington, DC.; New York State Science and Technology Foundation, Albany., June 11, 1992, 81 p.
    Identifying Number(s): NCEER-92-0015
    Keywords: ; Random noise; White noise; Structural vibration; Vector spaces; Algorithms; Mathematical models; Earth movements; Sampling theory; Dynamic response; Earthquake engineering; Simulation; Stochastic processes; Random functions; Seismic effects; Dynamic structural analysis