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RISPotential Method for 3D Wave Propagation in a Poroelastic Medium and Its Applications to Lamb’s Problem for a Poroelastic Half-Space
Publisher: American Society of Civil Engineers
Abstract: In cylindrical coordinates, a potential method is developed for three-dimensional (3D) wave propagation in a poroelastic medium. By using the proposed potential method, the wave propagation problems can be reduced to the ...
Experimental Study of the Rotor–Arm Interaction Noise in Single and Contra-Rotating Rotors of eVTOL Aircraft
Publisher: American Society of Civil Engineers
Abstract: The installation effects of arms connected to single and contra-rotating rotors of electric vertical take-off and landing (eVTOL) aircraft are of great importance for noise radiation in the far field. In this study, ...
A Method for Adjustable Planar and Spherical Four-Bar Linkage Synthesis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes a new method to synthesize adjustable four-bar linkages, both in planar and spherical form. This method uses fixed ground pivots and an adjustable length for input and ...
Fundamental Solutions of Poroelastodynamics in Frequency Domain Based on Wave Decomposition
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Fundamental solutions of poroelastodynamics in the frequency domain have been derived by Cheng et al. (1991, “Integral Equation for Dynamic Poroelasticity in Frequency Domain With BEM Solution,†J. Eng. Mech., 117(5), ...
Transonic Buffet in Flow Past a Low-Reynolds-Number Airfoil
Publisher: American Society of Civil Engineers
Abstract: For propeller-driven Mars airplanes operating at low Reynolds numbers, the speed of the rotor tips may reach transonic. To date, only a few studies have investigated the transonic buffet in flow past low-Reynolds-number ...
Thermal Properties of Hybrid Fiber-Reinforced Reactive Powder Concrete at High Temperature
Publisher: ASCE
Abstract: In order to study the thermal properties of reactive powder concrete (RPC) at high temperatures, the thermal conductivity, thermal diffusivity, specific heat capacity, and linear expansion coefficient of hybrid fiber-reinforced ...
Research on the Emission Characteristics of a Passenger Car Powered by Ethanol, Methanol, and Liquefied Petroleum Gas Under Real-World Running Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Alternative fuels have gained considerable attention because of their excellent sustainable energy conservation and emission reduction characteristics. In this study, emission characteristics and fuel economy of three ...
Long-Term Performance of Oil Recycled Asphalt Binders Based on Fatigue, Moisture Damage, and Oxidation Aging
Publisher: American Society of Civil Engineers
Abstract: The main objective of this work is to characterize the long-term performance of corn oil and refined engine oil bottom (REOB) recycled asphalt containing reclaimed asphalt pavement (RAP) binders, from the perspectives of ...
Seismic Bearing Capacity of Strip Footings on Ground Reinforced by Stone Columns Using Upper-Bound Solutions
Publisher: ASCE
Abstract: In this technical note, the seismic bearing capacity coefficients of shallow foundations placed on soft ground reinforced by stone columns are evaluated based on the upper-bound theorem of limit analysis. A kinematically ...
A Data-Driven Wheel Wear Prediction Model for Rail Train Based on LM-OMP-NARXNN
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The wheel wear situation on the railway vehicles will affect the train running stability and riding comfort. Thus, the prediction model of wheel tread wear is critical for anticipating the wheelset state information and ...