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Author: H.M. Atassi Publisher: Springer Science & Business Media ISBN: 1461393418 Category : Science Languages : en Pages : 876
Book Description
The first International Symposium on Unsteady Aerodynamics and Aero elasticity of Turbomachines was held in Paris in 1976, and was followed by symposia at Lausanne in 1980, Cambridge in 1984, Aachen in 1987, Bei jing in 1989, and Notre Dame in 1991. The proceedings published following these symposia have become recognized both as basic reference texts in the subject area and as useful guides to progress in the field. It is hoped that this volume, which represents the proceedings of the Sixth International Symposium on Unsteady Aerodynamics of Turbomachines, will continue that tradition. Interest in the unsteady aerodynamics, aeroacoustics, and aeroelasticity of turbomachines has been growing rapidly since the Paris symposium. This expanded interest is reflected by a significant increase in the numbers of contributed papers and symposium participants. The timeliness of the topics has always been an essential objective of these symposia. Another important objective is to promote an international exchange between scien tists and engineers from universities, government agencies, and industry on the fascinating phenomena of unsteady turbomachine flows and how they affect the aeroelastic stability of the blading system and cause the radiation of unwanted noise. This exchange acts as a catalyst for the development of new analytical and numerical models along with carefully designed ex periments to help understand the behavior of such systems and to develop predictive tools for engineering applications.
Author: H.M. Atassi Publisher: Springer Science & Business Media ISBN: 1461393418 Category : Science Languages : en Pages : 876
Book Description
The first International Symposium on Unsteady Aerodynamics and Aero elasticity of Turbomachines was held in Paris in 1976, and was followed by symposia at Lausanne in 1980, Cambridge in 1984, Aachen in 1987, Bei jing in 1989, and Notre Dame in 1991. The proceedings published following these symposia have become recognized both as basic reference texts in the subject area and as useful guides to progress in the field. It is hoped that this volume, which represents the proceedings of the Sixth International Symposium on Unsteady Aerodynamics of Turbomachines, will continue that tradition. Interest in the unsteady aerodynamics, aeroacoustics, and aeroelasticity of turbomachines has been growing rapidly since the Paris symposium. This expanded interest is reflected by a significant increase in the numbers of contributed papers and symposium participants. The timeliness of the topics has always been an essential objective of these symposia. Another important objective is to promote an international exchange between scien tists and engineers from universities, government agencies, and industry on the fascinating phenomena of unsteady turbomachine flows and how they affect the aeroelastic stability of the blading system and cause the radiation of unwanted noise. This exchange acts as a catalyst for the development of new analytical and numerical models along with carefully designed ex periments to help understand the behavior of such systems and to develop predictive tools for engineering applications.
Author: Kenneth C. Hall Publisher: Springer Science & Business Media ISBN: 1402046057 Category : Technology & Engineering Languages : en Pages : 605
Book Description
This textbook is a collection of technical papers that were presented at the 10th International Symposium on Unsteady Aerodynamics, Aeroacoustics, and Aeroelasticity of Turbomachines held September 8-11, 2003 at Duke University in Durham, North Carolina. The papers represent the latest in state of the art research in the areas of aeroacoustics, aerothermodynamics, computational methods, experimental testing related to flow instabilities, flutter, forced response, multistage, and rotor-stator effects for turbomachinery.
Author: Torsten H. Fransson Publisher: Springer Science & Business Media ISBN: 9401150400 Category : Science Languages : en Pages : 835
Book Description
Twenty-one years have passed since the first symposium in this series was held in Paris (1976). Since then there have been meetings in Lausanne (1980), Cambridge (1984), Aachen (1987), Beijing (1989), Notre Dame (1991) and Fukuoka (1994). During this period a tremendous development in the field of unsteady aerodynamics and aeroelasticity in turbomachines has taken place. As steady-state flow conditions become better known, and as blades in the turbomachine are constantly pushed towards lower weight, and higher load and efficiency, the importance of unsteady phenomena appear more clearly. th The 8 Symposium was, as the previous ones, of high quality. Furthermore, it presented the audience with the latest developments in experimental, numerical and theoretical research. More papers than ever before were submitted to the conference. As the organising committee wanted to preserve the uniqueness of the symposium by having single sessions, and thus mingle speakers and audience with different backgrounds in this interdisciplinary field, only a limited number of papers could be accepted. 54 papers were accepted and presented at the meeting, all of which are included in the present proceedings.
Author: Publisher: ISBN: Category : Languages : en Pages : 235
Book Description
The aeroelastician needs reliable, efficient methods for calculating unsteady blade forces in turbomachines. The validity of such theoretical or empirical prediction models can be established only if researchers apply their flutter and forced vibration predictions to a number of well documented experimental test cases. In the present report, the geometrical and time-averaged flow conditions of nine two-dimensional and quasi-three-dimensional experimental (mainly) standard configurations for aeroelasticity in turbomachine-cascades are given. Some aeroelastic test cases are defined for each configuration, comprising different incidence angles, Mach numbers, interblade phase angle, reduced frequencies, etc. Furthermore, a proposal for uniform nomenclature and reporting formats is included, in order to facilitate the comparison of different experimental data and theoretical results. In total, results from 15 theoretical prediction methods have been compared with each other, and with experimental data. The comparative investigation has shown that present theoretical models can predict accurately the aeroelastic behavior of certain cascade configurations in two-dimensional flow. Other configurations, on the other hand, cannot be predicted as well. It is concluded that, although present methods can predict stability limits in some cases, the physical reasons for flutter in cascades are not yet fully understood. Further investigations, both experimental and theoretical, are thus urgently required. (Switzerland).
Author: Max F. Platzer Publisher: ISBN: 9789283504672 Category : Aeroelasticity Languages : en Pages : 200
Book Description
The first volume of this Manual reviewed the state of the art of unsteady turbomachinery aerodynamics as required for the study of aeroelasticity in axial turbomachines. This second volume aims to complete the review by presenting the state of the art of structural dynamics and of aeroelasticity. The eleven chapters in this second volume give an overview of the subject and reviews of the structural dynamics characteristics and analysis methods applicable to single blades and bladed assemblies. The blade fatigue problem and its assessment methods, and life-time prediction are considered. Aeroelastic topics covered: the problem of blade-disc shroud aeroelastic coupling, formulations and solutions for tuned and mistuned rotors, and instrumentation on test procedures to perform a fan flutter test. The Effect of stagnation temperature and pressure on flutter is demonstrated and currently available forced vibration and flutter design methodology is reviewed.
Author: Yoshimichi Tanida Publisher: Elsevier Publishing Company ISBN: Category : Science Languages : en Pages : 830
Book Description
The contributed papers in this volume cover a variety of unsteady flow phenomena in turbomachines. They present theoretical and numerical modellings plus experimental techniques and findings on the unsteady flows in turbomachines.
Author: Sanford Fleeter Publisher: ISBN: Category : Aerodynamics Languages : en Pages : 342
Book Description
;Contents: Perspective in aeroelasticity; On the unstalled, subsonic, sonic and supersonic aerodynamic coefficients necessary for aeroelastic calculations; Unsteady cascade flow--a Schlieren study; Unsteady forces acting on turbomachine blades; Unsteady cascade aerodynamics including compressibility effects; Torsional flutter of unstalled blades at high subsonic mach numbers; Supersonic unstalled torsional flutter; Unsteady transonic and supersonic cascade flows; Semi-empirical analysis of stall flutter; Flutter of cylindrical shells exposed to a swirl type of flow; Flutter of a cylindrical shell in a swirling flow; Determination of turbine blade damage from noise spectrum measurements.
Author: Raymond L. Bisplinghoff Publisher: Courier Corporation ISBN: 9780486495002 Category : Technology & Engineering Languages : en Pages : 554
Book Description
Summary and general methods of constructing static and dynamic equations, dealing with the laws of mechanics for heated elastic solids, forms of aerodynamic operators, structural operators, much more. 1962 edition.
Author: H.M. Atassi
Author: H.M. Atassi
Author: Kenneth C. Hall
Author: Torsten H. Fransson
Author: 
Author: Sanford Fleeter
Author: Max F. Platzer
Author: S. Fleeter
Author: Yoshimichi Tanida
Author: Sanford Fleeter
Author: Raymond L. Bisplinghoff