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 criteriaYang, 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 systemsYang, 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 analysisYang, 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 analysisYang, 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 wavesYang, 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 dampingYang, 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 analysisYang, 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 systemsYang, 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 systemsYang, 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