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RISImbalance Estimation Without Test Masses for Wind Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Rotor imbalances of a wind turbine can cause severe damage of the turbine or its components and thus reduce the lifespan and security of the turbine significantly. At present, balancing of ...
Seismic Performance of Steel Plate Shear Walls Considering Two Different Design Philosophies of Infill Plates. I: Deterioration Model Development
Publisher: American Society of Civil Engineers
Abstract: Research was conducted to investigate the seismic performance of steel plate shear walls (SPSWs) having infill plates designed to resist different percentages of the applied lateral loads. The FEMA P695 methodology, which ...
Seismic Performance of Steel Plate Shear Walls Considering Two Different Design Philosophies of Infill Plates. II: Assessment of Collapse Potential
Publisher: American Society of Civil Engineers
Abstract: Assessment of collapse potential and seismic performance was conducted for steel plate shear walls (SPSWs) having infill plates designed per two different philosophies. This assessment was first conducted on SPSWs that ...
A PROPOSED MECHANISM FOR CUMULONIMBUS PERSISTENCE IN THE PRESENCE OF STRONG VERTICAL SHEAR
Publisher: American Meteorological Society
Abstract: Based on observations that vigorous convective elements in the atmosphere act as obstacles to the environmental flow, it is shown that hydrodynamic pressures exist near the strong updraft. After utilizing this result, a ...
Transport of Sand and Partly Cohesive Sediments in a Circular Pipe Run Partially Full
Publisher: American Society of Civil Engineers
Abstract: Many sediment deposits contain not only a granular but also a mineral and/or organic cohesive fraction, which has the potential to change significantly the erosion response when compared to noncohesive sediment deposits. ...
Finite-Element Investigation and Design Recommendations for Perforated Steel Plate Shear Walls
Publisher: American Society of Civil Engineers
Abstract: This paper presents results from an investigation of the behavior of unstiffened thin steel plate shear wall (SPSW) having a regular pattern of openings (a.k.a. perforated SPSW). Finite element monotonic pushover analyses ...
Case Study on the Impact of Horizontal Boundary Elements Design on Seismic Behavior of Steel Plate Shear Walls
Publisher: American Society of Civil Engineers
Abstract: A case study was conducted to investigate the seismic behavior of steel plate shear walls having boundary elements designed by two different philosophies. The first design approach does not guarantee that formation of ...
Simulations of a Centrifuge Test with Lateral Spreading and Void Redistribution Effects
Publisher: American Society of Civil Engineers
Abstract: Numerical simulations of a centrifuge test, in which dissipation patterns, lateral spreading, and shear strain localization were measured and recorded, are performed for validation of the numerical modeling approach and ...
Comparison of Lost Circulation Material Sealing Effectiveness in Water-Based and Oil-Based Drilling Fluids and Under Conditions of Mechanical Shear and High Differential Pressures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A study was conducted to assess the performance of granular and fibrous lost circulation materials as preventative treatments and in remedial treatment of lost circulation in water-based and oil-based drilling fluids. For ...
The Role of Particle Size Distribution for Fluid Loss Materials on Formation of Filter-Cakes and Avoiding Formation Damage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Numerous studies have shown that careful particle size selection is the main parameter for reducing fluid loss when drilling permeable or fractured formations. The methods are generally built around either the D50 or D90 ...