Abstract: Modeling the pressure-diffusion process is discussed to improve the prediction of turbulent recirculating flows by a second moment closure. Since the recent DNS research of a turbulent recirculating ...

Abstract: A computational method is introduced for simulating seismic wave propagation in elastic-viscoplastic shear layers. The fundamental dynamics are expressed by two partial differential equations for shear stress and velocity, ...

Abstract: A computational method is proposed for simulating rheological phenomena of a body composed of a material such as soft soil, powder, and granular material under large excitations. These phenomena are considered to be ...

Abstract: Dynamic characteristics are analytically investigated for a single degree of freedom structure with a Maxwell element (SSME). Eigenvalues are obtained analytically and approximated by a perturbation method. Then, cases are ...

Abstract: In order to clarify effects of an accumulator, pipe lengths and gradients of pressure and suction performances on cavitation surge, onedimensional stability analyses of cavitation surge were performed in hydraulic systems ...

Abstract: Current engineering practice evaluates the seismic performance of bridges based on nonlinear dynamic response analyses. Although various models exist for envelope curves of concrete confined by transverse reinforcement, ...

Abstract: This paper shows the effectiveness of a neural-network controller for controlling a flexible mechanism such as a flexible robot arm. An adaptive-type direct neural controller is formulated using ...

Abstract: Identical mathematical expressions for viscoelastic and viscous damper-brace components are derived as the function of two fundamental nondimensional parameters. These two parameters are used to investigate the properties ...

Abstract: This paper proposes a spectral difference method to estimate the maximum relative displacement between adjacent elastic structures subjected to seismic traveling waves. The method, based on random vibration theory, seeks ...