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RISThe Response Spectrum of a Nonlinear Oscillator
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The response of a nonlinear oscillator excited by white noise is considered. A truncated Hermite polynomial series is used as an approximation to the probability density function. While this ...
Motion of Dense Thermals on Incline
Publisher: American Society of Civil Engineers
Abstract: In this paper, results on the motion of two‐dimensional dense thermals descending on slopes of less than 5° are presented. The front propagation, concentration distribution, and internal structure of the thermals are ...
Transient Start-Up Characteristics of an In-Pipe Spherical Hydraulic Turbine
Publisher: ASCE
Abstract: The purpose of this study is to analyze the rotational speed characteristics of a spherical turbine start-up process, and the rotational speed characteristic of the spherical turbine is studied by numerical simulation. In ...
Calculation and Verification Methods of Collision Velocity between Vehicles and Two-Wheelers Based on the Uncertainty Theory
Publisher: American Society of Civil Engineers
Abstract: To improve the accuracy of speed identification in car/automobile and two-wheeler collision accidents, the uncertainty theory was used to evaluate a collision speed model of the riders and the two-wheeler vehicles. First, ...
Analysis of Factors Affecting the Comfort of Vehicle Occupants Due to Bridgehead Jumping
Publisher: ASCE
Abstract: To study the influence of bumping at a bridgehead on the comfort of vehicle occupants, this paper comprehensively considers the factors such as bridgehead drop, driving speed, and the road’s horizontal and vertical alignment, ...
Implicit Integration of the Unified Yield Criterion in the Principal Stress Space
Publisher: American Society of Civil Engineers
Abstract: An implicit numerical integration algorithm is presented for the unified yield criterion, which could encompass most other yield criteria. The modification matrix, which is used to convert the continuum tangent modular ...
Statistical Analysis of the Spatial Transmission of Pipeline Failures in an Oil Treatment Station at Sinopec Tahe Oilfield
Publisher: ASCE
Abstract: Corrosion failure generally results in pipeline leakages during oil production. This paper systematically investigated the pipeline failure events in an oil treatment station of Tahe oilfield in the last 20 years were ...
Performance Improvement of Cement-Based Materials Containing Coal Gasification Fine Ash by Using High-Calcium Solid Waste: Experimental, Hydration Kinetics, and Thermodynamic Modeling Investigation
Publisher: American Society of Civil Engineers
Abstract: The addition of an appropriate content of calcium source into cement-based materials containing coal gasification fine ash (CGFA) is found to be a potential method to improve its mechanical properties. In this study, three ...
Experimental Study on Shear Behavior and a Revised Shear Strength Model for Infilled Rock Joints
Publisher: ASCE
Abstract: To better understand the shear behavior of infilled rock joints with standard joint roughness coefficient (JRC) profiles, direct shear experiments are performed on sand and clay infilled joints prepared by reproducing the ...
Stochastic Programming with a Joint Chance Constraint Model for Reservoir Refill Operation Considering Flood Risk
Publisher: American Society of Civil Engineers