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RISDynamic Simulation Model for Project Change-Management Policies: Engineering Project Case
Publisher: American Society of Civil Engineers
Abstract: The management and control of megaprojects are incredibly complex. Difficulties occur due to unexpected changes and errors. To effectively manage disruptive changes, reworks, and errors, project managers are required to ...
Modified Collision Energy, a New Chemical Model in the DSMC Algorithm
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new chemical model in the direct simulation Monte Carlo (DSMC) algorithm, entitled modified collision energy (MCE), has been developed for simulation of reactive rarefied flows without some limitations of the conventional ...
Effects of Microhydrophobic Porous Layer on Water Distribution in Polymer Electrolyte Membrane Fuel Cells
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Performance of polymer electrolyte membrane fuel cells (PEMFC) at high current densities is limited to transport reactants and products. Furthermore, large amounts of water are generated and may be condensed due to the low ...
Maneuvering and Vibrations Control of a Free-Floating Space Robot with Flexible Arms
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A free-floating space robot with four linkages, two flexible arms and a rigid end-effector that are mounted on a rigid spacecraft; is studied in this paper. The governing equations are derived ...
Studying Effects of Fence and Sheltering on the Aerodynamic Forces Experienced by Parabolic Trough Solar Collectors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Influences of proper fence installation around solar farms for decreasing aerodynamic factors due to wind force on parabolic trough collectors are comprehensively studied using two-dimensional computational fluid dynamics ...
Shaking Table Model Tests on Pile Groups behind Quay Walls Subjected to Lateral Spreading
Publisher: American Society of Civil Engineers
Abstract: This paper presents experimental results of 1-g shaking table model tests on a
Experimental Validation of a Mechanistic Multibody Model of a Vertical Piano Action
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The validity and accuracy of a highfidelity mechanistic multibody model of a vertical piano action mechanism is examined experimentally and through simulation. An overview of the theoretical and computational framework of ...
Tip-Vortex Noise Reduction of a Wind Turbine Using a Winglet
Publisher: American Society of Civil Engineers
Abstract: The present study investigates the feasibility of using winglet as a novel approach to reduce aero-acoustic noise of wind turbine blades. For this purpose, the National Renewable Energy Laboratory (NREL) Phase VI wind ...
Implementation of Effective Force Testing for Nonlinear Structures
Publisher: American Society of Civil Engineers
Abstract: Effective force testing (EFT) is a dynamic testing method that can consider the rate-dependent behavior of a structure. Because of the lack of knowledge of real-time force control for a servohydraulic actuator, however, ...
Die Profile Optimization of Rectangular Cross Section Extrusion in Plane Strain Condition Using Upper Bound Analysis Method and Simulated Annealing Algorithm
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Extrusion die profile has a significant role on material flow characteristics, product microstructure, die life, and required load. Nowadays, economic requirements and effort to improve and homogenize metallurgical product ...