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RISDynamic Characteristics of Heat Exchanger Tubes Vibrating in a Tube Support Plate Inactive Mode
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Tubes in shell-and-tube heat exchangers, including nuclear plant steam generators, derive their support from longitudinally positioned tube support plates (TSPs). Typically, there is a clearance ...
Fluid Excitation Forces Acting on a Square Tube Array
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Fluid forces acting on a tube array are important in the assessment of vibration of system components consisting of multiple circular cylinders. This paper presents test results for a square ...
Experiment and Analysis of Instability of Tube Rows Subject to Liquid Crossflow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A tube array subjected to crossflow may become unstable by either one or both of the two basic mechanisms: velocity mechanism and displacement mechanism. An experimental and analytical study ...
Experiments on Fluidelastic Vibration of Cantilevered Tube Bundles
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the results of three series of experiments on coupled tube/fluid vibration. Natural frequencies and mode shapes of coupled modes as well as steady-state responses are measured ...
Characteristics of Fluidelastic Instability of Tube Rows in Crossflow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental study is reported that investigated the jump phenomenon in critical flow velocities for tube rows with different pitch-to-diameter ratios, and the excited and intrinsic instabilities ...
Flow Velocity Dependence of Damping in Tube Arrays Subjected to Liquid Cross-Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experiments are conducted to determine the damping for a tube in tube arrays subjected to liquid cross-flow; damping factors in the lift and drag directions are measured for in-line and staggered ...
Dynamic Response of a Circular Cylinder Subjected to Liquid Cross Flow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper describes a series of experimental investigations of single tubes subjected to crossflow. The experiments have two distinct features: 1–the damping in the lift and drag direction is ...
Determination and Characteristics of the Transition to Two-Phase Slug Flow in Small Horizontal Channels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Two-phase pressure drop and fluctuating static pressures were measured in a small horizontal rectangular channel (hydraulic diameter = 5.44 mm). The two-phase fluid was an air/water mixture at ...
Added Mass and Damping of a Vibrating Rod in Confined Viscous Fluids
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an analytical and experimental study of a cylindrical rod vibrating in a viscous fluid enclosed by a rigid, concentric cylindrical shell. A closed-form solution for the added ...
Fluid Damping and Fluid Stiffness of a Tube Row in Crossflow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Motion-dependent fluid forces acting on a tube array were measured as a function of excitation frequency, excitation amplitude, and flow velocity. Fluid-damping and fluid-stiffness coefficients ...