Download or read book An Unsteady Long Bearing Squeeze Film Damper Model Part 2 written by P. A. Schallhorn and published by BiblioGov. This book was released on 2013-08 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper, the second of a two-part series, presents results of an unsteady rotordynamic analysis of a long-bearing squeeze film damper executing orbits about an off center position using a fluid circuit approach. A series of nodes and branches represent the geometry of the flow circuit. The mass and momentum conservation equations are solved to predict the pressure distribution in the squeeze film. The motion of the bearing is simulated by the variation of geometry within the flow path. This effort represents the first modeling approach which allows for an arbitrary orbit size about an arbitrary position.
Download or read book An Unsteady Long bearing Squeeze Film Damper Model written by Paul A. Schallhorn and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Unsteady Long Bearing Squeeze Film Damper Model Part 1 written by P. A. Schallhorn and published by BiblioGov. This book was released on 2013-08 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper, the first of a two-part series, presents results of an unsteady rotordynamic analysis of a long-bearing squeeze film damper executing circular centered orbits using a fluid circuit approach. A series of nodes and branches represent the geometry of the flow circuit. The mass and momentum conservation equations are solved to predict the pressure distribution in the squeeze film. The motion of the bearing is simulated by the variation of geometry within the flow path. The modeling methodology is benchmarked against published experimental long-bearing squeeze film damper test results. The model provides good agreement with the experimental damping coefficient.
Download or read book Unsteady Analysis of the Fluid Film Forces in a Long Bearing Squeeze Film Damper written by Paul Schallhorn and published by . This book was released on 1998 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Novel Approach for Modeling Long Bearing Squeeze Film Damper Performance written by P. A. Schallhorn and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Squeeze Film Damper Technology written by J. Walton and published by . This book was released on 1986 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present report this report provides refinements and extensions to the analytical treatment of squeeze film dampers reported in Part I. Specifically, it incorporates the effects of squeeze film dampers cavitation on performance based on short-bearing theory and particularly on the damping properties. The analysis also provides means of a more accurate evaluation of the flow resistance in the feeding holes by taking account of the stagnation pressures at the entrance to the clearance space. With these modifications introduced into the computer program, a parametric study is then conducted on the effects of the many variables on the operation of sealed and unsealed dampers, both hole- and groove-fed. Among the variables considered are clearance, size, eccentricity ratio, supply pressure and system frequency. Conclusions are drawn as to the optimum values of these parameters with regard to best damper performance.
Download or read book Squeeze Film Damper Technology written by J. Walowit and published by . This book was released on 1986 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present report this report provides refinements and extensions to the analytical treatment of squeeze film dampers reported in Part I. Specifically, it incorporates the effects of squeeze film dampers cavitation on performance based on short-bearing theory and particularly on the damping properties. The analysis also provides means of a more accurate evaluation of the flow resistance in the feeding holes by taking account of the stagnation pressures at the entrance to the clearance space. With these modifications introduced into the computer program, a parametric study is then conducted on the effects of the many variables on the operation of sealed and unsealed dampers, both hole- and groove-fed. Among the variables considered are clearance, size, eccentricity ratio, supply pressure and system frequency. Conclusions are drawn as to the optimum values of these parameters with regard to best damper performance. Keywords: Rotordynamics, Cavitation Fluid Inertia.
Download or read book Aerospace America written by and published by . This book was released on 1999 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nonlinear analysis of squeeze film dampers design and application for aircraft engines written by Edgar J. Gunter and published by . This book was released on 1976 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Squeeze film Damper Technology Part 2 Experimental Verification Using a Controlled orbit Test Rig written by J. A. Tecza and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and application of squeeze film dampers for turbomachinery stabilization written by Edgar J. Gunter and published by . This book was released on 1975 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Steady state and Transient Analysis of a Squeeze Film Damper Bearing for Rotor Stability written by Lloyd Edward Barrett and published by . This book was released on 1975 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Shock and Vibration Digest written by and published by . This book was released on 1989 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Study of Uncentralized Squeeze Film Dampers written by Roger D. Quinn and published by . This book was released on 1983 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rotating Machinery Research and Development Test Rigs written by Maurice L. Adams and published by CRC Press. This book was released on 2017-07-20 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rotating Machinery Research and Development Test Rigs presents the purpose and development processes for test apparatuses built for Research & Development in machinery technology and product development. Each R & D apparatus is the focus of an entire chapter, with fifteen detailed case studies included from mechanical, aerospace, chemical and biomedical engineering. Specific machinery components covered include bearings, seals, power plant pumps, rotors, turbines and compressors. Machinery condition monitoring and product development processes have been integrated. The specific purpose and results for each test rig are comprehensively presented and explained.
