Author: David S. WeaverPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Hydroelastic Stability of a Flat Plate
Author: David S. WeaverThe Hydroelastic Stability Pf a Flat Plate
Author: David S. WeaverASME 71-APM-16
Author: David S. WeaverPublisher:
ISBN:
Category : Hydroelasticity
Languages : en
Pages : 6
Book Description
Hydro-rotational Stability of a Flat Plate in a Rectangular Flow Channel
Author: Jaw-Yeu HwangThe Hydroelastic Behavior of Flat Plates as Influenced by Trailing Edge Geometry
Author: Arthur T. IppenPublisher:
ISBN:
Category : Hydroelasticity
Languages : en
Pages : 132
Book Description
This report presents the results of a theoretical review and an experimental investigation of the hydroelastic vibration of thin flat plates suspended at zero mean angle of attack in a fluid stream. The review indicated that recognized experimental facts such as the influence of trailing edge geometry and the three-dimensional wake structure were inadequately related to theoretical considerations about the vibration phenomenon. The experimental investigation consisted of a detailed determination of the amplitude and frequency spectra of the vibration on a number of flat test plates which were mounted in the test section of a water tunnel at zero mean angle of attack. The effects on the vibrational behavior of trailing edge geometry, geometric and elastic properties of the plate support, free stream velocity and ambient pressure have been explored experimentally. An equation of motion has been written for the test plate - torsion spring system employed. Results of a qualitative analysis of this non-linear equation are compared with the experimental results obtained.
A Study of Hydroelastic Stability of Partially Cavitated Hydrofoils by Application of Quasisteady Theory
Author: Paul KaplanPublisher:
ISBN:
Category :
Languages : en
Pages : 43
Book Description
This report presents a stability analysis for partially cavitated hydrofoils, where the foil is represented by a flat plate. In the hydrodynamic force and moment representation, only the quasi-steady and apparent-mass contributions are retained; the wake effects, essential for unsteady theory, are neglected. The resulting flutter boundaries are compared to those obtained by applying the complete unsteady solution. It is shown that the behavior at low reduced frequencies is in agreement with the unsteady solution. In particular, the critical density ratio, which is (effectively) the lowest value of the density ratio at which flutter will occur, can be calculated exactly from the quasi-steady theory. (Author).
Flow-induced Vibrations: an Engineering Guide
Author: Eduard NaudascherPublisher: Routledge
ISBN: 1351447866
Category : Technology & Engineering
Languages : en
Pages : 432
Book Description
Designed for engineers, this work considers flow-induced vibrations. It covers topics such as body oscillators; fluid loading and response of body oscillators; fluid oscillators; vibrations due to extraneously-induced excitation; and vibrations due to instability-induced excitation.
Fluid-Structure-Sound Interactions and Control
Author: Yu ZhouPublisher: Springer Science & Business Media
ISBN: 3642403719
Category : Technology & Engineering
Languages : en
Pages : 409
Book Description
With rapid economic and industrial development in China, India and elsewhere, fluid-related structural vibration and noise problems are widely encountered in many fields, just as they are in the more developed parts of the world, causing increasingly grievous concerns. Turbulence clearly has a significant impact on many such problems. On the other hand, new opportunities are emerging with the advent of various new technologies, such as signal processing, flow visualization and diagnostics, new functional materials, sensors and actuators, etc. These have revitalized interdisciplinary research activities, and it is in this context that the 2nd symposium on fluid-structure-sound interactions and control (FSSIC) was organized. Held in Hong Kong (May 20-21, 2013) and Macau (May 22-23, 2013), the meeting brought together scientists and engineers working in all related branches from both East and West and provided them with a forum to exchange and share the latest progress, ideas and advances and to chart the frontiers of FSSIC. The Proceedings of the 2nd Symposium on Fluid-Structure-Sound Interactions and Control largely focuses on advances in the theory, experimental research and numerical simulations of turbulence in the contexts of flow-induced vibration, noise and their control. This includes several practical areas for interaction, such as the aerodynamics of road and space vehicles, marine and civil engineering, nuclear reactors and biomedical science etc. One of the particular features of these proceedings is that it integrates acoustics with the study of flow-induced vibration, which is not a common practice but is scientifically very helpful in understanding, simulating and controlling vibration. This offers a broader view of the discipline from which readers will benefit greatly. These proceedings are intended for academics, research scientists, design engineers and graduate students in engineering fluid dynamics, acoustics, fluid and aerodynamics, vibration, dynamical systems and control etc. Yu Zhou is a professor in Institute for Turbulence-Noise-Vibration Interaction and Control at Harbin Institute of Technology. Yang Liu is an associate professor at The Hong Kong Polytechnic University. Lixi Huang, associate professor, works at the University of Hong Kong. Professor Dewey H. Hodges works at the School of Aerospace Engineering, Georgia Institute of Technology.
Flow-Induced Vibrations
Author: Eduard NaudascherPublisher: Courier Corporation
ISBN: 0486136132
Category : Science
Languages : en
Pages : 434
Book Description
Despite their variety, the vibration phenomena from many different engineering fields can be classified into a relatively few basic excitation mechanisms. The classification enables engineers to identify all possible sources of excitation in a given system and to assess potential dangers. This graduate-level text presents a synthesis of research results and practical experience from disparate fields in the form of engineering guidelines. It is particularly geared toward assessing the possible sources of excitation in a flow system, in identifying the actual danger spots, and in finding appropriate remedial measures or cures. Flow-induced vibrations are presented in terms of their basic elements: body oscillators, fluid oscillators, and sources of excitation. By stressing these basic elements, the authors provide a basis for the transfer of knowledge from one system to another, as well as from one engineering field to another. In this manner, well-known theories on cylinders in cross-flow or well-executed solutions from the field of wind engineering--to name just two examples--may be useful in other systems or fields on which information is scarce. The unified approach is broad enough to permit treatment of the major excitation mechanism, yet simple enough to be of practical use.
Flow-Induced Vibrations
Author: Tomomichi NakamuraPublisher: Butterworth-Heinemann
ISBN: 0080983529
Category : Technology & Engineering
Languages : en
Pages : 425
Book Description
In many plants, vibration and noise problems occur due to fluid flow, which can greatly disrupt smooth plant operations. These flow-related phenomena are called flow-induced vibration. This book explains how and why such vibrations happen and provides hints and tips on how to avoid them in future plant design. The world-leading author team doesn’t assume prior knowledge of mathematical methods and provides the reader with information on the basics of modeling. The book includes several practical examples and thorough explanations of the structure, the evaluation method and the mechanisms to aid understanding of flow-induced vibrations. Helps ensure smooth plant operations Explains the structure, evaluation method and mechanisms Shows how to avoid vibrations in future plant design