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EBookClubs

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Book Three Dimensional Resonant Vibrations and Stresses in Turbine Blade Groups

Download or read book Three Dimensional Resonant Vibrations and Stresses in Turbine Blade Groups written by Patrick J. Kline and published by . This book was released on 1981 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This thesis describes an efficient procedure for calculating three dimensional resonant vibrations and stresses in intermediate and high pressure turbine blade groups. This procedure is capable of calculating all the natural frequencies, mode shapes, and bending stresses in the tangential, axial, and coupled modes of vibration. Simple beam theory is applied to develop a dynamic stiffness matrix. The solutions to this matrix give the natural frequencies and mode shapes for the blade group. Prohl's energy method is used to determine the amplitude of the forced vibrations and the dynamic stresses. A Goodman diagram fatigue criterion is applied to evaluate the probability of blade group failure. Comparing this procedure's numerical results with experimental results for a rectangular beam structure, the largest difference for the first five tangential natural frequencies is 1.2 percent. This method of analysis is simple and can be applied in twenty hours. Sample calculations and results are given for a typical blade group, and the advantages and limitations of this method are discussed."--Abstract.

Book Turbomachine Blade Vibration

Download or read book Turbomachine Blade Vibration written by J. S. Rao and published by New Age International. This book was released on 1991 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue Failures Of Blades Is One Of The Most Vexing Problems Of Turbomachine Manufacturers, Ever Since The Steam Turbine Became The Main Stay For Power Generating Equipment And Gas Turbines Are Increasingly Used In The Air Transport. The Problem Is Very Complex, Involving The Excitation Due To Aerodynamic Stage Interaction; Damping Due To Material Deformation, Friction At Slip Surfaces And Aerodynamic Damping; Vibration Of An Asymmetric Aerofoil Tapered Along Its Length And Mounted On A Rotating Disc At A Stagger Angle. The Problem Is Also Governed By Heat Transfer Analysis And Thermal Stresses.His Book Deals With A Basic Understanding Of Free Vibratory Behaviour Of Turbine Blades- Free Standing, Packetted, And Bladed-Discs. The Analysis Is Based On Continuous And Discrete Models Using Energy Principles And Finite Element Techniques. A Clear Understanding Of The Interference Phenomenon In A Thin Cambered Airfoil Stage In Subsonic Flow Is Presented To Determine The Nonsteady Excitation Forces Acting On The Blades. A Comprehensive Treatment On The Blade Damping Phenomenon That Occurs In Turbines Is Given. The Nonlinear Damping Models Account For Material Damping And Friction Damping As A Function Of Rotational Speed For Each Mode. Resonant Response Calculation Procedures For The Steadily Running As Well As Accelerating Blades Are Given.Cumulative Damage Calculations Are Then Outlined For Fatigue Life Estimation Of Turbomachine Blades. The Book Also Deals With Heat Transfer Analysis And Thermal Stress Calculations Which Help In A Comprehensive Understanding Of The Blade Problems.

Book 3 D Stress Analysis of a Turbine Blade

Download or read book 3 D Stress Analysis of a Turbine Blade written by C. M. Lewis and published by . This book was released on 1977 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a demonstration of the usefulness of the ATLAS system in performing three-dimensional elastic stress analysis of a turbine blade. Modeling details for a shrouded uncooled turbine blade are outlined and program execution and data management techniques are discussed.

Book Turbine Blade Life Estimation

Download or read book Turbine Blade Life Estimation written by J. S. Rao and published by Alpha Science Int'l Ltd.. This book was released on 2000 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: The blade life estimation is a multifaceted technology, involving free and forced vibration forces, that lead to the determination of steady and dynamic stresses at different critical speeds during the startup and shutdown procedures, as well as in the operational speed range. Propagation and unstable fracture are described with practical examples to estimate blade life.

Book Scientific and Technical Aerospace Reports

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Book Paper

Download or read book Paper written by and published by . This book was released on 1986 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Mechanical Engineering

Download or read book Mechanical Engineering written by and published by . This book was released on 1986 with total page 1466 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Shock and Vibration Digest

Download or read book The Shock and Vibration Digest written by and published by . This book was released on 1980 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Blade Design and Analysis for Steam Turbines

Download or read book Blade Design and Analysis for Steam Turbines written by Murari P. Singh and published by McGraw Hill Professional. This book was released on 2011-03-22 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: THE LATEST STEAM TURBINE BLADE DESIGN AND ANALYTICAL TECHNIQUES Blade Design and Analysis for Steam Turbines provides a concise reference for practicing engineers involved in the design, specification, and evaluation of industrial steam turbines, particularly critical process compressor drivers. A unified view of blade design concepts and techniques is presented. The book covers advances in modal analysis, fatigue and creep analysis, and aerodynamic theories, along with an overview of commonly used materials and manufacturing processes. This authoritative guide will aid in the design of powerful, efficient, and reliable turbines. COVERAGE INCLUDES: Performance fundamentals and blade loading determination Turbine blade construction, materials, and manufacture System of stress and damage mechanisms Fundamentals of vibration Damping concepts applicable to turbine blades Bladed disk systems Reliability evaluation for blade design Blade life assessment aspects Estimation of risk

Book The Shock and Vibration Bulletin

Download or read book The Shock and Vibration Bulletin written by and published by . This book was released on 1983-05 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Bibliography of the Material Damping Field

Download or read book Bibliography of the Material Damping Field written by and published by . This book was released on 1956 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Applied Mechanics Reviews

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1972 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Shock and Vibration Bulletin

Download or read book The Shock and Vibration Bulletin written by and published by . This book was released on 1983-05 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: