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RISMulti-Objective Redundancy Allocation for Multi-State System Design Under Epistemic Uncertainty of Component States
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Multi-state is a typical characteristic of engineered systems. Most existing studies of redundancy allocation problems (RAPs) for multi-state system (MSS) design assume that the state probabilities of redundant components ...
Numerical Investigation of Turbulent Premixed Combustion in a High Acceleration Field
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To guide ultra-compact combustor (UCC) engineering, simulations were conducted about turbulent premixed combustion in a high acceleration field which is called high-g combustion, along with a detailed investigation on the ...
The Tribocorrosion Resistance of Posttreated Supersonic Plasma-Sprayed MoSi2 Coating
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: MoSi2 coatings were prepared on a 45CrNi substrate by supersonic plasma spraying (SAPS). The tribocorrosion resistance of MoSi2 coating and posttreated MoSi2 coating (P-MoSi2) in the seawater environment was analyzed. After ...
Numerical Analysis of Transient Wave Propagation in Nonlinear One Dimensional Waveguides by Using the Spectral Finite Element Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, transient wave propagation in nonlinear onedimensional (1D) waveguides is studied. A complete nonlinear (CN) 1D model accounting for both axial and transverse displacements is developed and geometric and ...
Alternating Frequency–Time Finite Element Method: High Fidelity Modeling of Nonlinear Wave Propagation in One Dimensional Waveguides
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a spectral finite element method (SFEM) based on the alternating frequency–time (AFT) framework is extended to study impact wave propagation in a rod structure with a general material nonlinearity. The ...
Numerical Investigation of Lateral and Axial Wave Propagation in Drill Strings for Stability Monitoring
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, the propagation of lateral waves and axial acoustic waves in a drillstring are studied by using a new numerical method and a stability monitoring scheme is proposed. The drillstring is modeled as a linear ...
Adaptive Actuator Failure and Structural Damage Compensation of NASA Generic Transport Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper studies design and evaluation of a multivariable model reference adaptive control (MRAC) scheme for aircraft systems under simultaneous actuator failures and structural damage. A key design condition–system ...
Acoustic Beamforming Array Design Methods Over Irregular Shaped Areas
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Acoustic beamforming array design methods are typically suited for circular and rectangular areas. A comparison of three array design methods is presented in this paper over irregular shaped areas, including L-shapes and ...
Particle Image Velocimetry Measurements in a Two Pass 90 Degree Ribbed Wall Parallelogram Channel
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A parallelogram channel has drawn very little or no attention in the open literature although it appears as a crosssectional configuration of some gas turbine rotor blades. Particle image velocimetry (PIV) is presented of ...
Spatial Temporal Stability of an Electrified Viscoelastic Liquid Jet
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents theoretically the spatialtemporal instability behavior of an electrified viscoelastic liquid jet. Dimensionless parameters have been tested for their influence on the transition of absolute and convective ...