NEHRP Clearinghouse

displaying 1 - 10 results in total 13

  • ['Yang, J. N.', 'Freudenthal, A. M.']
    Reliability Assessment of Offshore Platforms in Seismic Regions.
    National Science Foundation, Washington, DC. Applied Science and Research Applications., August 1977, 118 p.
    Identifying Number(s): TR-2
    Keywords: Statistical distributions; Earthquake resistant structures; Dynamic loads; Offshore structures; Seismic waves; Earthquake engineering; Random vibration; Ocean waves; Design criteria

  • ['Yang, J. N.', 'Akbarpour, A.', 'Ghaemmaghami, P.']
    Instantaneous Optimal Control Laws for Tall Buildings Under Seismic Excitations.
    National Science Foundation, Washington, DC., June 10, 1987, 108 p.
    Identifying Number(s): NCEER-87-0007
    Keywords: ; Seismic design; Algorithms; Buildings; Earthquake engineering; Optimal control; Open loop systems

  • ['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

  • ['Yang, J. N.', 'Sarkani, S.', 'Long, F. X.']
    Model Analysis of Nonclassically Damped Structural Systems Using Canonical Transformation.
    National Science Foundation, Washington, DC., September 27, 1987, 72 p.
    Identifying Number(s): NCEER-87-0019
    Keywords: Equations of motion; Numerical integration; Vibration; Damping; Dynamic response; Ground motion; Earthquake engineering; Transformations; Functions (Mathematics); Seismic effects; Structural analysis

  • ['Yang, J. N.', 'Long, F. X.', 'Wong, D.']
    Optimal Control of Nonlinear Flexible Structures.
    National Science Foundation, Washington, DC., January 22, 1988, 113 p.
    Identifying Number(s): NCEER-88-0002
    Keywords: Earthquake resistant structures; Optimal control algorithms; Dynamic structure analysis; Nonlinear flexible structures; Elastic waves

  • ['Yang, J. N.', 'Sarkani, S.', 'Long, F. X.']
    Response Spectrum Approach for Analysis of Nonclassically Damped Structures.
    National Center for Earthquake Engineering Research, Buffalo, NY.; National Science Foundation, Washington, DC., April 22, 1988, 64 p.
    Keywords: Earthquake resistant structures; Damping; Graphs (Charts); Dynamic response; Dynamic structural analysis; Ground motion; Mechanical properties; Seismic effects; Earthquakes; Nonclassical damping

  • ['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

  • ['Yang, J. N.', 'Li, Z.', 'Vongchavalitkul, S.']
    Generalization of Optimal Control Theory: Linear and Nonlinear Structures.
    National Center for Earthquake Engineering Research, Buffalo, NY.; New York State Science and Technology Foundation, Albany.; National Science Foundation, Washington, DC., November 2, 1992, 89 p.
    Keywords: ; Earthquake resistant structures; Structural vibration; Mathematical models; Control theory; Dynamic response; Earthquake engineering; Optimization; Vibration damping; Vibration isolators; Nonlinear systems; Linear systems

  • ['Yang, J. N.', 'Wu, J. C.', 'Agrawal, A. K.', 'Li, Z.']
    Sliding Mode Control for Seismic-Excited Linear and NonLinear Civil Engineering Structures.
    National Science Foundation, Arlington, VA.; New York State Science and Technology Foundation, Albany., June 21, 1994, 105 p.
    Identifying Number(s): NCEER-94-0017
    Keywords: Earthquake resistant structures; Structural vibration; Mathematical models; Variable structure system; Dynamic response; Earthquake engineering; Buildings; Robustness (Mathematics); Vibration damping; Active control; Hysteresis; Sliding mode control; Linear systems; Nonlinear systems; Seismic effects; Vibration isolators; Dynamic structural analysis