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RISEnhanced Ultrasonic Imaging and Non-Destructive Evaluation Using Angle-of-Arrival Estimation in Dimension-Reduced Beam Space
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Robust defect detection in the presence of grain noise originating from material microstructures is a challenging yet essential problem in ultrasonic non-destructive evaluation (NDE). In this paper, a novel method is ...
A Two-Step Optimization-Based Iterative Learning Control for Quadrotor Unmanned Aerial Vehicles
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a two-step optimization-based design method for iterative learning control and applies it onto the quadrotor unmanned aerial vehicles (UAVs) trajectory tracking problem. Iterative learning control aims ...
An Improved Heat Flux Partitioning Model of Nucleate Boiling Under Saturated Pool Boiling Condition
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An improved heat flux partitioning model of pool boiling is proposed in this study to predict the material-conjugated pool boiling curve. The fundamental rationale behind the improved model is that heat convection is only ...
Rigid Retaining Walls with Narrow Cohesionless Backfills under Various Wall Movement Modes
Publisher: American Society of Civil Engineers
Abstract: Spaces for backfills are often constrained and limited to a narrow width when retaining walls must be built close to existing stable walls in urban areas or near rock faces in mountainous areas. Estimation of lateral earth ...
Design and Analysis of a Free-Piston Stirling Engine for Microreactor Applications
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: With the development of microreactors, a free-piston Stirling engine (FPSE) is an excellent candidate to support the development of microreactors. Based on the advantages of microreactors such as the compact design, ...
Slip Surface and Active Earth Pressure of Cohesionless Narrow Backfill behind Rigid Retaining Walls under Translation Movement Mode
Publisher: ASCE
Abstract: A slip-failure surface forms in the backfill soil upon sufficient yielding or movement of the wall that retains the backfill soil. The shape of the slip-failure surface plays an important role in estimating the lateral ...
A Decision-Making Framework for Load Rating Planning of Aging Bridges Using Deep Reinforcement Learning
Publisher: ASCE
Abstract: Load rating is gaining popularity as a method for inspecting the structural performance of aging bridges and determining maintenance actions. Cost-effective condition-based strategies have been developed in previous studies ...
Molten Salt Pump Journal-Bearings Dynamic Characteristics Under Hydrodynamic Lubrication Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A reliable high-temperature molten salt pump is critical for the development of Fluoride-salt-cooled, High-temperature Reactors (FHRs). By supporting the rotating journal, the appropriate journal bearing can ensure that ...
Nonlinear Diesel Engine Control and Cylinder Pressure Observation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents novel approaches to nonlinear engine fuel controller and cylinder pressure observer designs based on mean torque production and cylinder-by-cylinder models. Sliding mode controllers ...
Turbocharged Diesel Engine Modeling for Nonlinear Engine Control and State Estimation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Engine models that are used for nonlinear diesel engine control, state estimation, and model-based diagnostics are presented in this paper. By collecting, modifying, and adding to current available ...