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RISSection Involvement at the National Level
Publisher: American Society of Civil Engineers
Abstract: The American Society of Civil Engineers emphasizes that its strength is founded on member involvement at the local level. To foster an information exchange, the Society provides an opportunity at National Conventions for ...
Numerical Study of Low Engine Order Excitations Due to Manufacturing Variability Part II: An Efficient Approach for Stochastic Studies
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In turbomachinery rows, the geometric variability between the airfoils induces nonuniformity in the flow, which directly translates into low engine order (LEO) excitation and vibration in the adjacent rows. Direct simulations ...
Comparative System Performance Analysis of Direct Steam Generation Central Receiver Solar Thermal Power Plants in Megawatt Range
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work proposes and analyses several integration schemes specially conceived for direct steam generation (DSG) in megawatt (MW) range central receiver solar thermal power plants. It is focused on the optical performance ...
Aeroelastic Stability of Welded-in-Pair Low Pressure Turbine Rotor Blades: A Comparative Study Using Linear Methods
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The aerodynamic damping of a modern low pressure turbine bladed-disk with interlock rotor blades is compared for the first time to that obtained when the rotor blades are welded in pairs ...
Effect of the Structural Coupling on the Flutter Onset of a Sector of Low-Pressure Turbine Vanes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of the structural coupling in the aeroelastic stability of a packet of low-pressure turbine vanes is studied in detail. The dynamics of a 3D sector vane is reduced to that of a ...
A Conceptual Flutter Analysis of a Packet of Vanes Using a Mass-Spring Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The linear aeroelastic stability of a simplified mass-spring model representing the basic dynamics of a packet of Na airfoils has been used to uncover a new type of coupled mode flutter. This ...
Analysis of the Core Exit Temperature and the Peak Cladding Temperature During a SBLOCA: Application to a Scaled Up Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: During lossofcoolant accidents (LOCAs), operators may start accident management (AM) actions when the core exit temperature (CET) measured by thermocouples exceeds a certain value. However, a significant time delay and ...
A New Parallel Manipulator With Multiple Operation Modes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this work, a new parallel manipulator with multiple operation modes is introduced. The proposed robot is based on a three-degrees-of-freedom (3DOF) parallel manipulator endowed with a three-dof central kinematic chain, ...
Numerical Study of Low Engine Order Excitations Due to Manufacturing Variability Part I: Characterization of the Geometric Scatter and Its Effect on Forced Response
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The geometric scatter in the surfaces of blades and vanes due to manufacturing variability has an impact on the dynamics (structural mistuning) that has been widely studied, but also on the aerodynamics. This geometric ...
Simplified Kinematics for a Parallel Manipulator Generator of the Schönflies Motion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work is devoted to simplify the inverse–forward kinematics of a parallel manipulator generator of the 3T1R motion. The closure equations of the displacement analysis are formulated based on the coordinates of two ...