Vibration characteristics of mistuned bladed disc assembly PDF Download
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Author: Hoi Yiu
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Hoi Yiu
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Hoi Yiu
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Hong Jiang
Publisher:
ISBN:
Category :
Languages : en
Pages : 193
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Book Description
Author: Christophe Pierre
Publisher:
ISBN:
Category : Aeroelasticity
Languages : en
Pages : 42
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Book Description
Author: H. Dare Afolabi
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: J. S. Rao
Publisher: New Age International
ISBN: 9788122403046
Category : Technology & Engineering
Languages : en
Pages : 466
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Book Description
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.
Author: Ming-Ta Yang
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
A state-of-the-art facility has been developed for the experimental study of the vibratory response of bladed-disk assemblies. An Electronic Speckle Pattern Interferometry system provides real-time, full-field imaging of the vibration of a test specimen, while a Single Point Laser Vibrometer, mounted on a two-stage linear positioning assembly, provides high accuracy quantitative vibration measurements at any location on the surface of the specimen. Vibration of the test specimen is driven by a novel acoustic excitation system, which delivers a traveling-wave forcing to the blink specimen that replicates the excitation to which industrial bladed disks are subject. A 24-blade experimental blink (integral bladed disk) has been designed and manufactured to precision tolerances specifically for use in this experimental facility. The blink is nearly perfectly tuned but can be systematically mistuned in a controlled fashion in order to study mistuning phenomena. The setup has been shown to be extremely effective at rapidly identifying and accurately quantifying the complex vibration characteristics of blinks. The measurement capabilities provided with this unique facility will allow the dynamic behaviors in both tuned and mistuned configurations to be thoroughly documented and compared with predictions based on existing and developing theories of mistuning phenomena. This facility will also be used to develop a method for identifying the mistuning characteristics of industrial blinks.
Author: Gísli Sigurbjörn Óttarsson
Publisher:
ISBN:
Category :
Languages : en
Pages : 442
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Book Description
Author: Alok Sinha
Publisher: Cambridge University Press
ISBN: 1108101348
Category : Science
Languages : en
Pages : 201
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Book Description
This is the first comprehensive volume on nearly periodic structures and mistuned blade vibration. Alok Sinha presents fundamental concepts and state-of-the-art techniques in the analysis of free and forced response of a nearly periodic structure, weaving together his own work (covering thirty-five years of research in this field) with works by other researchers. He also discusses similarities between tools used in bladed rotor analysis and condensed matter physics. Specific subjects covered include the reasons behind mode localization, the reasons behind amplitude amplification of steady-state response, state-of-the-art computational techniques for mistuned bladed rotors including multistage rotors, identification of mistuning from measured response, vibration localization in linear atomic chains, and analysis of two-dimensional periodic structures.
