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RISPerformance Measurements of Gas Bearings With High Damping Structures of Polymer and Bump Foil Via Electric Motor Driving Tests and One Degree-of-Freedom Shaker Dynamic Loading Tests
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents comprehensive test measurements for gas journal bearings with damping structures of a bump foil layer and/or a polymer layer. A one-pad top foil forms the bearing surface, under which the bearing structure ...
A Feasibility Study of Controllable Gas Foil Bearings With Piezoelectric Materials Via Rotordynamic Model Predictions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study presents a new concept of controllable gas foil bearings (C-GFBs) with piezoelectric actuators. The C-GFB consists of a laminated top foil, bump foil, and piezo stacks and can simply change the bearing shape or ...
Development and Performance Measurements of a Beta-Type Free-Piston Stirling Engine Along With Dynamic Model Predictions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the development and performance measurements of a beta-type free-piston Stirling engine (FPSE) along with dynamic model predictions. The FPSE is modeled as a two degrees-of-freedom (2DOF) vibration ...
Feasibility Study of an Oil Free Turbocharger Supported on Gas Foil Bearings Via On Road Tests of a Two Liter Class Diesel Vehicle
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the feasibility study of an oilfree turbocharger (TC) supported on gas foil bearings (GFBs) via onroad tests of a 2liter class diesel vehicle. The oilfree TC is constructed using a hollow rotor with a ...
Effects of Mechanical Preloads on the Rotordynamic Performance of a Rotor Supported on Three Pad Gas Foil Journal Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the rotordynamic performance measurements and model predictions of a rotor supported on threepad gas foil journal bearings (GFJBs) with various mechanical preloads. The rotor with its length of 240 mm, ...