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RISApproximation of the Vibration Modes of a Plate and Shells Coupled With a Fluid
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We consider a method to compute the vibration modes of an elastic thin structure (shell or plate) in contact with a compressible fluid. For the structure, the classical Naghdi equations, based ...
Segment-Based Assessment of Consequences of Failure on Water Distribution Systems
Publisher: ASCE
Abstract: This paper presents an assessment methodology that considers the impact of actual valve locations in a water distribution system in creating discrete isolated groups of pipes or segments when evaluating the performance of ...
A Heuristic for Strategic Valve Placement
Publisher: ASCE
Abstract: An iterative heuristic is proposed to improve the distribution of isolation valves within an existing water distribution network to decrease the magnitude of service interruptions while using the minimum number of valves ...
Segment Identification Procedure for Water Distribution Systems
Publisher: ASCE
Abstract: Isolation valves are a fundamental element of water distribution systems because they provide the ability to disconnect sections of the network, which is essential to address routine maintenance and emergency conditions. ...
Identification of Localized Structural Damage from Highly Incomplete Modal Information: Theory and Experiments
Publisher: American Society of Civil Engineers
Abstract: The paper presents a methodology for identification of localized structural damage using highly incomplete modal information, such as a subset of modal frequencies. The proposed methodology is based on linearized modal ...
Criteria for Economic Optimization of an Absorption System Using Sources of Low Temperature
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An absorption system, reduced to the equivalent combined system of three-heat-source heat pump, is optimized with economical criteria. The multiparameter thermodynamic function η combines the COP ...
Large Truck–Involved Crashes: Exploratory Injury Severity Analysis
Publisher: American Society of Civil Engineers
Abstract: In recent years, a growing concern related to large truck accidents has increased owing to the level of injury severity that can be sustained and to the related potential economic impact. Current studies related to large ...
Identification of Localized Structural Damage from Highly Incomplete Modal Information: Theory and Experiments
Publisher: American Society of Civil Engineers
Abstract: The paper presents a methodology for identification of localized structural damage using highly incomplete modal information, such as a subset of modal frequencies. The proposed methodology is based on linearized modal ...
Identifying Local Reductions to Mass and Stiffness with Incomplete Modal Information, Sparsity, and Nonnegative Constraints
Publisher: ASCE
Abstract: The l1-norm regularized inverse methods have been suggested as a means to quantify and localize spatially sparse damage from a set of identified natural frequencies. Thus far, damage has been interpreted as changes in ...
Evaluation of Nonintrusive Active Infrared Thermography Technique to Detect Hidden Solder Ball Defects on Plastic Ball Grid Array Components
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: It is essential for electronics reliability to develop effective methodologies to detect hidden solder joint defects. Active infrared thermography is an alternative to Xray detection methodologies. The limits of active ...