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RISPredicting Changes in Vibration Behavior With Respect to Multiple Variables Using Empirical Sensitivity Functions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Engineers must routinely predict how structural systems will vibrate after design modifications are made to the mass, damping, or stiffness properties of the components. To reduce the cost of ...
Development of Component-Level Damage Evolution Models for Mechanical Prognosis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents component-level empirical damage evolution regression models based on loads and damage information that do for mechanical damage prediction what the Paris law does for predicting ...
Accuracy and Convergence Using a Local Interaction Simulation Approach in One, Two, and Three Dimensions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Guided waves are utilized in structural health monitoring for identifying damage in material components. Simulations can be used to examine how elastic waves propagate in components to help in ...
Modeling Guided Waves for Damage Identification in Isotropic and Orthotropic Plates Using a Local Interaction Simulation Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a numerical simulation technique based on the local interaction simulation approach (LISA)/sharp interface model (SIM) is used to study the propagation of Lamb waves in aluminum ...
Discrete Frequency Models: A New Approach to Temporal Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Forced vibration responses of nonlinear systems contain harmonics of the excitation frequency. These harmonics are either directly forced or are subharmonic, superharmonic, or combination resonances. ...
System Identification of Nonlinear Mechanical Systems Using Embedded Sensitivity Functions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A novel method of experimental sensitivity analysis for nonlinear system identification of mechanical systems is examined here. It has been shown previously that embedded sensitivity functions, ...
Transmissibility as a Differential Indicator of Structural Damage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This article discusses the use of frequency domain transmissibility functions for detecting, locating, and quantifying damage in linear and nonlinear structures. Structural damage affects both the ...
Gas Pulsation Reductions in a Multicylinder Compressor Suction Manifold Using Valve-to-Valve Mass Flow Rate Phase Shifts
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper investigates the pressure pulsations caused by each mass flow rate through the suction valves and ports of a multicylinder compressor in order to attribute high-pressure pulsation ...
A Technique for Estimating Linear Parameters Using Nonlinear Restoring Force Extraction in the Absence of an Input Measurement
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Conventional nonlinear system identification procedures estimate the system parameters in two stages. First, the nominally linear system parameters are estimated by exciting the system at an ...
Nondestructive Evaluation of Parts With Degenerate Modes Using Pseudorepeated Roots
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The modes of vibration of manufactured parts can be good indicators of the overall quality of the manufacturing process. That is, deviations in the modal frequencies or modal vectors of ...