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Uncertainty Separation Method for Simulation With Image and Numerical Data
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Image-based simulation plays a pivotal role in diverse engineering applications, integrating both image and numerical variables as inputs to predict design performance, understand system behaviors, and drive discovery. ...
Inverse Simulation Under Uncertainty by Optimization
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Inverse simulation is an inverse process of a direct simulation. During the process, unknown simulation input variables are identified for a given set of known simulation output variables. Uncertainties such as random ...
Saddlepoint Approximation for Sequential Optimization and Reliability Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A good balance between accuracy and efficiency is essential for reliability-based design (RBD). For this reason, sequential-loops formulations combined with the first-order reliability method (FORM) ...
Time Dependent Mechanism Reliability Analysis With Envelope Functions and First Order Approximation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work develops an envelope approach to timedependent mechanism reliability defined in a period of time where a certain motion output is required. Since the envelope function of the motion error is not explicitly related ...
Unified Uncertainty Analysis by the First Order Reliability Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Two types of uncertainty exist in engineering. Aleatory uncertainty comes from inherent variations while epistemic uncertainty derives from ignorance or incomplete information. The former is usually ...
Toward Time-Dependent Robustness Metrics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Quality characteristics are often treated as constants in robust design, while many of them actually vary over time. It is desirable to define new robustness metrics for time-dependent quality ...
A Safety Factor Method for Reliability-Based Component Design
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Reliability-based design (RBD) employs optimization to identify design variables that satisfy the reliability requirement. For many routine component design jobs that do not need optimization, however, RBD may not be ...
Recovering Missing Component Dependence for System Reliability Prediction via Synergy Between Physics and Data
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Predicting system reliability is often a core task in systems design. System reliability depends on component reliability and dependence of components. Component reliability can be predicted with a physics-based approach ...
System Reliability Analysis With Second-Order Saddlepoint Approximation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The second-order saddlepoint approximation (SOSPA) has been used for component reliability analysis for higher accuracy than the traditional second-order reliability method (SORM). This work extends the second-order ...
Robustness Metric for Robust Design Optimization Under Time- and Space-Dependent Uncertainty Through Metamodeling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Product performance varies with respect to time and space in many engineering applications. This paper discusses how to measure and evaluate the robustness of a product or component when its quality characteristics (QCs) ...