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The Impact of Exceptional Points on the Reliability of Thermoacoustic Stability Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Exceptional points can be found for specific sets of parameters in thermoacoustic systems. At an exceptional point, two eigenvalues and their corresponding eigenfunctions coalesce. Given that the sensitivity of these ...
Preferable Workspace for Fatigue Life Improvement of Flexible-Joint Robots Under Percussive Riveting
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper proposes a method to find the preferable workspace for fatigue life improvement of robots with flexible joints under percussive riveting. The development is motivated by the growing interest in using industrial ...
Experimental and Numerical Investigations of a Bypass Dual Throat Nozzle
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The bypass dual throat nozzle (BDTN) is a new kind of fluidic vectoring nozzle. A bypass is set between the upstream convergent section and upstream minimum area based on the conventional dual throat nozzle (DTN). The BDTN ...
Design and Analysis of a Smart Rehabilitation Walker With Passive Pelvic Mechanism
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In response to the ever-increasing demand of community-based rehabilitation, a novel smart rehab walker iReGo is designed to facilitate the lower limb rehabilitation training based on motion intention recognition. The ...
Efficient Robust Design for Thermoacoustic Instability Analysis: A Gaussian Process Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the preliminary phase of analyzing the thermoacoustic characteristics of a gas turbine combustor, implementing robust design principles is essential to minimize detrimental variations of its thermoacoustic performance ...
Confidence in Flame Impulse Response Estimation From Large Eddy Simulation With Uncertain Thermal Boundary Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Thermoacoustic stability analysis is an essential part of the engine development process. Typically, thermoacoustic stability is determined by hybrid approaches. These approaches require information on the flame dynamic ...
Reliable Calculation of Thermoacoustic Instability Risk Using an Imperfect Surrogate Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: One of the fundamental tasks in performing robust thermoacoustic design of gas turbine combustors is calculating the modal instability risk, i.e., the probability that a thermoacoustic mode is unstable, given various sources ...
Optimization of a Mobile Platform for a Wheeled Manipulator
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A method for optimizing a mobile platform to form a wheeled manipulator is presented. For a given manipulator, this mobile platform is optimized to have maximum tip-over stability against the reaction forces and moments ...
Tip-Over Stability Analysis for a Wheeled Mobile Manipulator
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A method is presented for tip-over stability analysis of a wheeled mobile manipulator. A wheeled mobile manipulator may tip over resulting from its operation. In this study, first a Newton–Euler formulation is applied to ...
Quantification and Propagation of Uncertainties in Identification of Flame Impulse Response for Thermoacoustic Stability Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The thermoacoustic behavior of a combustion system can be determined numerically via acoustic tools such as Helmholtz solvers or network models coupled with a model for the flame dynamic response. Within such a framework, ...