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RISDynamic Elastic Response of a Ring to Transient Pressure Loading
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Stress analysis is carried out for distributed impact loads applied along the inner and outer edges of a ring. These loads are assumed to be of the form q(θ)e−αt . The relationships between ...
Application of V Shape Riblets to Pipe Flows
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Pipes with V shape riblets were tested at Reynolds numbers between 5×103 and 4×104 . All riblet pipes indicated some drag reduction. The model with h = 0.55 mm and h/S = 0.483 ...
Simplified Dynamic Model for Amount of Directional Correction of Small-Diameter Tunneling Robot
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the last decade, small-diameter tunneling technology has improved considerably. As a result, the use of this technology is expected to increase dramatically [1]. For example, one microtunneling ...
Fracture Toughness for Steel Fiber‐Cement Paste Interfacial Zone
Publisher: American Society of Civil Engineers
Abstract: The critical strain energy release rate for the interfacial zone is experimentally obtained by applying the compliance method to the single‐fiber pull‐out test. Effects of the embedded length and the addition of silica ...
Shear Instability in a Shallow Water Model with Implications for the Venus Atmosphere
Publisher: American Meteorological Society
Abstract: The shear instability problem in the spherical shallow water system is investigated for three types of wind profiles that are observed at the upper cloud level in Venus. Destabilized Kelvin modes are obtained for all ...
Wave-Energy Dissipation and Wave Setup Caused by Entrained Air Bubbles in Plunging Wave Breaking
Publisher: American Society of Civil Engineers
Abstract: In this study, a simple air-bubble model was developed for unidirectional, homogeneous, plunging-wave propagation over a sloping beach to calculate wave height and wave setup in the surf zone. Two parameters used in the ...
Wave Over-reflection and Baroclinic Instability of the Eady Problem
Publisher: American Meteorological Society
Abstract: The concept of wave over-reflection is applied to the unstable normal mode of the Eady problem. In order to consider propagation properties of the Rossby waves trapped at the boundaries, two thin boundary layers are ...
Development and Validation of a Reduced Critical Radius Model for Cryogenic Cavitation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cryogenic fluids such as liquid hydrogen, liquid oxygen, and liquid methane have often been used as liquid rocket propellants, and it is well known that the suction performance of turbopump ...
A Miniature Mobile Robot Using Piezo Vibration for Mobility in a Thin Tube
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper proposes a miniature mobile robot that uses piezo vibration to move within a thin tube. The robot consists of a piezo bimorph with elastic fins attached at an angle. Robot movement ...
Zero Phase Error Tracking System With Arbitrarily Specified Gain Characteristics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper considers a design problem of discrete-time preview feedforward controllers such that the gain characteristics of the overall system is within an arbitrarily specified bound subject ...