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RISNew Bird Model for Simulation of Bird Strike on Various Layups Used in Transparent Components of Rotorcrafts
Publisher: American Society of Civil Engineers
Abstract: In this paper, a bird strike against a simple rectangular panel made of five different layups usually used in transparent parts of a rotorcraft is investigated. A new bird model is introduced and its results for impact on ...
Finite Element Analysis on Chattering in Cold Rolling and Comparison With Experimental Results
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, the chattering phenomenon in cold rolling is investigated in reference to the finite element method (FEM). The structure of the mill stand is modeled as a system of linear springs and lumped masses while the ...
Design of a Nonlinear Adaptive Controller for an Electrohydraulic Actuator1
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a new implementation of indirect model reference adaptive (MRA) control scheme for positioning of hydraulic actuators that operate by low-cost proportional valves. A proper ...
Thermoelastic Modeling of Rotor Response With Shaft Rub
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper studies the effects of shaft rub on a rotating system’s vibration response with emphasis on heat generation at the contact point. A 3D heat transfer code, coupled to a 3D vibration ...
Experimental and Finite Element Simulation of Wear in Nanostructured NiAl Coating
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, the wear of nanostructured NiAl coating was studied both experimentally and numerically. First, the nanocrystalline NiAl intermetallic powder was synthesized by mechanical alloying (MA) of aluminum and Ni ...
Increasing the Performance of a Rotary Piezoelectric Frequency Up-Converting Energy Harvester Under Weak Excitations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In common rotary piezoelectric (PZT) frequency up-converting energy harvesters, impact or nonimpact frequency up-conversion technologies are used. For low separation distances between the magnets in nonimpact cases, when ...
Data Worth Assessments Using an Integrated Hydrologic Model in a Semiarid Region
Publisher: American Society of Civil Engineers
Abstract: AbstractThe application of spatially distributed integrated hydrologic models (IHMs) to better
manage water resources depends on reasonable parameter estimates. In general, it is
difficult to estimate the parameters of ...
Life Estimation of Pressurized-Air Solar-Thermal Receiver Tubes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The operational conditions of the solar-thermal receiver for a Brayton cycle engine are challenging, and lack a large body of operational data unlike steam plants. We explore the receiver’s ...
New Model for Simulating Hydraulic Performance of an Infiltration Trench with Finite-Volume One-Dimensional Richards’ Equation
Publisher: American Society of Civil Engineers
Abstract: Infiltration trench is one of the best stormwater management practices to control excessive runoff volume in urban areas. Most of the methods or models employed for designing an infiltration trench are either very simplified ...
A Similarity Solution for Mixed-Convection Boundary Layer Nanofluid Flow on an Inclined Permeable Surface
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper concerns with calculation of heat transfer and pressure drop in a mixed-convection nanofluid flow on a permeable inclined flat plate. Solution of governing boundary layer equations is presented for some values ...