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RISModeling and Vibration Analysis of Friction Joints
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a microslip model of friction joints, which may be viewed as a generalization of the simple model considered by Menq et al. (1986a). Laboratory experiments have shown that ...
Friction Damping of Circular Motion and Its Implications to Vibration Control
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: When vibrating bodies are mutually constrained through friction contact they may move with respect to each other and dissipate energy at the interface. If the relative motion of the contacting ...
Periodic Response of Blades Having Three-Dimensional Nonlinear Shroud Constraints
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a three-dimensional shroud contact model is employed to predict the periodic response of blades having three-dimensional nonlinear shroud constraint. When subjected to periodic ...
Motion Control of Manipulators with Closed-Form Inverse Solutions Near Wrist Singularities
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Two algorithms, the degenerate axis and iterative methods, are developed for the motion control of manipulators with closed-form solutions in the neighborhood of singularities. These two methods ...
Modeling of Friction Contact and Its Application to the Design of Shroud Contact
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Designers of aircraft engines frequently employ shrouds in turbine design. In this paper, a variable normal load friction force model is proposed to investigate the influence of shroudlike contact ...
Characterization of Contact Kinematics and Application to the Design of Wedge Dampers in Turbomachinery Blading: Part 2—Prediction of Forced Response and Experimental Verification
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the second part of this paper, the application of the proposed dual-interface model to the prediction of the forced response of a blade constrained by wedge dampers will be presented. When ...
Characterization of Contact Kinematics and Application to the Design of Wedge Dampers in Turbomachinery Blading: Part 1—Stick-Slip Contact Kinematics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Friction dampers are often used in turbine design to attenuate blade vibration to acceptable levels so as to prolong blades’ service life. A wedge damper, also called a self-centering, ...
The Forced Response of Shrouded Fan Stages
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a general approach for modeling shrouded blade vibration that takes into consideration the nonlinear friction constraint at the shroud interface. In this approach, linear ...
The Influence of a Variable Normal Load on the Forced Vibration of a Frictionally Damped Structure
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An approximate procedure is developed for calculating the steady-state response of frictionally damped structures for which the normal load across the friction interface consists of a constant ...
Prediction of Resonant Response of Shrouded Blades With Three-Dimensional Shroud Constraint
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, the three-dimensional shroud contact kinematics of a shrouded blade system is studied. The assumed blade motion has three components, namely axial, tangential, and radial components, ...