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RISCharacterizing Nonstationary Wind Speed Using the ARMA-GARCH Model
Publisher: American Society of Civil Engineers
Abstract: This paper aims to accurately calculate the time-varying standard deviation of nonstationary wind speed by modeling wind speed as a time-varying mean wind speed plus a uniformly modulated nonstationary process and applying ...
Robustness Analysis on Aerothermal Performance of the Winglet Squealer Tip—Part 1: Aerodynamic Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Accurately assessing the robustness of the aerothermal performance of the blade tip is important considering that uncertainty is inevitable in the actual operation of turbines. However, the conventional uncertainty ...
Robustness Analysis on Aerothermal Performance of the Winglet Squealer Tip—Part II: Heat Transfer Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This article is the second part of a robustness analysis of the aerothermal performance of the winglet structure. A challenging analytical test function and an engineering test are considered to further investigate the ...
Comprehensive Aerothermal Investigation of Turbine Blade Multicavity Squealer Tip Using a Novel Methodology With Uncertainty Quantification
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Ascertaining the uncertainty in the aerothermal performance of blade tips is crucial, as it represents the most delicate component of modern gas turbines. In this research article, a novel and efficient approach is proposed ...
Aerothermal Performance Robustness and Reliability Analysis of Turbine Blade Squealer Tip With Film Cooling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The uncertainty quantification in the turbine components' aerodynamic and heat transfer performances is widely considered to be the most challenging topic due to its intricate and nonlinear characteristics. This paper first ...
A Subscale Experimental Test Method to Characterize Extrusion Based Elastomer Seals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Extrusionbased elastomer seals are used in many applications, such as the seal in a variable bore ram valve used in offshore oil and gas drilling. Performing fullscale closing pressure experiments of such valves to ...
Design of Acoustic Metamaterial Devices Based on Inverse Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The inverse method based on the numerical solution of Laplace's equation is introduced for the design of acoustic metamaterial devices. An arbitrary shaped acoustic concentrator and an external cloak are designed numerically ...
A Novel Approach Investigating the Remaining Useful Life Predication of Retired Power Lithium-Ion Batteries Using Genetic Programming Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Electric vehicles (EVs) have been widely cherished by consumers in recent years. However, as the number of EVs continues to increase, the number of retired power batteries will also increase, especially retired power ...
Efficient Uncertainty Quantification and Sensitivity Analysis on the Aerothermal Performance of Turbine Blade Squealer Tip
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: It is important to accurately estimate the impact of flow and geometric variations for engineering design and manufacture. In this paper, an efficient uncertainty quantification analysis framework based on the combination ...