Author: Sang-Ho LimPublisher:
ISBN:
Category :
Languages : en
Pages : 482
Book Description
Dynamic Analysis and Design Strategies for Mistuned Bladed Disks
Author: Sang-Ho LimPublisher:
ISBN:
Category :
Languages : en
Pages : 482
Book Description
Nonlinear Dynamic Analysis of Mistuned Bladed-disk Assemblies
Author: Oliver G. McGeePublisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages :
Book Description
Dynamic Modeling and Vibration Analysis of Mistuned Bladed Disks
Author: Gísli Sigurbjörn ÓttarssonPublisher:
ISBN:
Category :
Languages : en
Pages : 442
Book Description
Experimental Investigation of Mistuned Bladed Disks System Vibration
Author: Jia LiPublisher:
ISBN:
Category :
Languages : en
Pages : 398
Book Description
Dynamics of Mistuned Bladed Disks
Author: Marlin Jay KrusePublisher:
ISBN:
Category :
Languages : en
Pages : 330
Book Description
Modeling & Analysis of Bladed Disk with Cracks and Mistuning
Author: Tianyi HuPublisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 43
Book Description
In this thesis, efficient techniques are presented for analyzing the dynamics of mistuned bladed disks with cracks. The analysis of the influence of cracks coupled with the influence of mistuning on the dynamics of bladed disks is computationally challenging for several reasons: (i) complex geometry of modern turbines results in very high dimensional computational models; (ii) mistuning in these structures breaks the cyclic symmetry in these systems; and (iii) cracks further disrupt the symmetry property and introduce a piecewise-linear nonlinearity into these systems. Recently several approaches have been developed to handle these challenges individually. The component mode mistuning (CMM) approach was developed to efficiently model small mistuning in bladed disks. The X-Xr method was developed for generating reduced-order models of cyclically symmetric systems with cracks. More recently, the generalized bilinear amplitude approximation (BAA) technique was created to efficiently approximate the nonlinear vibrational response of a class of piecewise-linear nonlinear systems. This work modifies and combines these techniques, for the first time, to enable modeling and analysis of mistuned bladed disks with cracks in an efficient manner. The novel method can generate the reduced-order model of full disks using single-sector models only and approximate the nonlinear vibrational response of mistuned disks with significantly reduced computational effort. A mistuned bladed disk with a crack is parametrically studied using the proposed approach. The influence of different mistuning patterns and crack lengths on the dynamics of the system is discussed.
Analysis Methods for Mistuned Bladed Disks
Author: Giulia MassazzaPublisher:
ISBN:
Category :
Languages : en
Pages : 208
Book Description
Vibration Analysis and System Identification of Mistuned Multistage Turbine Engine Rotors
Author: Sang Heon SongPublisher:
ISBN:
Category :
Languages : en
Pages : 262
Book Description
Experimental Investigations of the Effects of Mistuning on Bladed Disk Dynamics
Author: John A. JudgePublisher:
ISBN:
Category :
Languages : en
Pages : 576
Book Description
Efficient Predictions of the Vibratory Response of Mistuned Bladed Disks by Reduced Order Modeling
Author: Jan Ronnie BladhPublisher:
ISBN:
Category :
Languages : en
Pages : 596
Book Description
