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Heat Exchanger Tube Fretting Wear: Review and Application to Design
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Flow-induced vibration in steam generators and heat exchangers can cause dynamic interactions between tubes and tube supports resulting in fretting-wear. The effects on tube wear of various ...
Wear of Power Plant Components Due to Impact and Sliding
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In nuclear power plants, major tribological problems can occur among the interacting components, such as those in the control assembly, the reactors and the steam generators, due to a combination ...
Experimental Studies of Tube Frettings in Steam Generators and Heat Exchangers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: High flow rates in steam generators and heat exchangers may create flow-induced tube vibrations which cause local wear through impacting and rubbing on tube supports and/or with adjacent tubes. ...
Correlation of Support Impact Force and Fretting-Wear for a Heat Exchanger Tube
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Flow-induced tube vibration can cause dynamic interactions between a tube and its supports. Both wear information and results from vibration analyses are needed to achieve a realistic assessment ...
Quasi-Harmonic Friction-Induced Vibration
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A theoretical and experimental investigation of quasi-harmonic friction-induced vibration is reported. The vibration is of near-sinusoidal form and is solely governed by dynamic friction forces. ...
The Measurement of Friction and Friction-Induced Vibration
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The design, development, and application of a pin-on-disk tribometer for the measurement of friction and friction-induced vibration is described. Careful isolation techniques eliminated many of the ...
Stick-Slip Vibration Between Two Large Concentric Circular Discs in Rotational Contact With Multiple Point Loads
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a study of the stick-slip frictional phenomenon when large contact areas subjected to uneven contact loads, such as the rotating platform of excavators and large robotic ...
Wear Studies of Materials for Tubes and Antivibration Bars in Nuclear Steam Generators
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Wear occurs as a result of relative motion at the interface of two contacting bodies. In nuclear power steam generators, high flow rates can induce vibration of the tubes resulting in wear ...
Simulation of Tube-to-Support Dynamic Interaction in Heat Exchange Equipment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Tubes within tube and shell heat exchange components are supported at intermediate points by support plates. Flow-induced vibration of a tube can cause it to impact or rub against a support ...