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RISTime-Delay Compensation in Active Control of Structures
Publisher: American Society of Civil Engineers
Abstract: A complete time-delay compensation method is derived. The sensitivity of the stability of the system to the estimation error of the initial condition and excitation, to the estimation error of the delay in the system, and ...
Tangential Contact Stiffness of Rough Cylindrical Faying Surfaces Based on the Fractal Theory
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The tangential contact stiffness of cylindrical asperities is investigated using macroand micromechanisms in this study. A microanalysis model is developed and the tangential contact stiffness of elliptically parabolic ...
Effect of Sprinkler Head Geometrical Parameters on Hydraulic Performance of Fluidic Sprinkler
Publisher: American Society of Civil Engineers
Abstract: A new prototype of fluidic sprinkler is proposed in this paper. To determine the discharge coefficient (A), pattern radius (B), sprinkler rotation speed (C), droplet diameter distribution (D), and the radial application ...
Closure to “Effect of Sprinkler Head Geometrical Parameters on Hydraulic Performance of Fluidic Sprinkler” by Xingye Zhu, Shouqi Yuan, and Junping Liu
Publisher: American Society of Civil Engineers
Optimal Control of Tall Buildings
Publisher: American Society of Civil Engineers
Abstract: An analysis of optimal modal control for tall buildings subjected to earthquake excitation is presented. The output feedback control system is applied under the circumstances that the state of the plant cannot be completely ...
Active Control and Seismic Isolation
Publisher: American Society of Civil Engineers
Abstract: An active control system is designed to induce artificial damping to the isolation structure of a building without increasing its stiffness. The control forces needed are exerted only on the base of the structure, and the ...
Understanding Demand for Project Manager Competences in the Construction Industry: Data Mining Approach
Publisher: ASCE
Abstract: Construction project managers (CPMs) are highly in demand in the construction industry, but this has not yet comprehensively been studied from a demand-side perspective. This study investigated the real-world demand for ...
A Multi Objective Optimization Approach to Active Power Control of Wind Farm
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: With more and more wind farms integrated into the power grid, the stability and security of the grid can be significantly affected by the windfarmgenerated power, due to the intermittent and volatile nature of the ...
Can Long-Range Single-Baseline RTK Provide Service in Shanghai Comparable to Network RTK?
Publisher: ASCE
Abstract: Traditionally, GPS real-time kinematic (RTK) technique can provide precise positioning for short baselines, and network-based RTK (NRTK) is much more effective than the single-baseline RTK (SRTK) stemming from its capability ...
Quantifying Microstructural Damage of Sandstone after Hydrochemical Corrosion
Publisher: American Society of Civil Engineers
Abstract: Rock microstructure changes after hydrochemical reactions, which, in turn, leads to deterioration of mechanical properties. Thus, a quantification study on rock microstructural damage after chemical corrosion is necessary. ...