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RISRedundancy in Residual Vectors for Missing Mass Effect in Coupled Modal Synthesis
Publisher: American Society of Civil Engineers
Abstract: It has been illustrated in the past that a modal synthesis gives incorrect modal properties and seismic response of nonclassically damped coupled systems when all the modes of uncoupled primary and secondary systems are ...
Feasibility Study on Bisphenol A as Phenol Replacement to Produce Aminosulfonate-Phenol-Formaldehyde Superplasticizer for Application in Concrete
Publisher: American Society of Civil Engineers
Abstract: In this study, phenol was replaced by a powdery bisphenol A to produce aminosulfonate -phenol-formaldehyde (ASPF) superplasticizer (SP); ASPF SP and aminosulfonate-bisphenol A- formaldehyde (ASBF) SP were prepared. ASPF ...
Dynamic Monitoring of Steel Girder Highway Bridge
Publisher: American Society of Civil Engineers
Abstract: Currently there are different monitoring techniques that have been considered for use in the structural evaluation of bridges. These include approaches based on both static and dynamic behavior. The use of dynamic properties ...
Equivalent Statistical Cubicization for System and Forcing Nonlinearities
Publisher: American Society of Civil Engineers
Abstract: This technical note outlines the treatment of a single-degree-of-freedom (SDOF) system containing statistically symmetric nonlinearities in both its stiffness characteristics and its excitation. Via equivalent statistical ...
Discussion: Stochastic Response of Offshore Platforms by Statistical Cubicization
Publisher: American Society of Civil Engineers
Sensitivity Study for Vibrational Parameters Used in Damage Detection
Publisher: American Society of Civil Engineers
Abstract: A number of researchers have proposed using vibrational behavior to monitor structures. When significant damage occurs, there are changes in the structural stiffness. This causes changes in the vibrational information. The ...
Structural Damage Detection Using Artificial Neural Networks
Publisher: American Society of Civil Engineers
Abstract: Artificial neural networks are efficient computing techniques that are widely used to solve complex problems in many fields. In this study, a counterpropagation neural network is used to locate structural damage for a beam, ...
Equivalent Statistical Quadratization and Cubicization for Nonlinear Systems
Publisher: American Society of Civil Engineers
Abstract: A summary is given of the development of two techniques for handling system and excitation nonlinearities: equivalent statistical quadratization and equivalent statistical cubicization. Depending upon the nature of a given ...
Tool Path Generation for Turbine Blades Machining With Twin Tool
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Blades are essential parts used in thermal and nuclear power generation. Its machining precision is a vital factor that influences the efficiency and life of those industries. Blades are thin-walled parts, which could ...
Risk Assessment of Regional Water Resources and Forewarning Model at Different Time Scales
Publisher: American Society of Civil Engineers
Abstract: With the goal of making full use of water resources, a risk assessment of regional water resources and a forewarning model was studied in this paper. The model is built upon risk indexes in the system, proceeding from the ...