Journal ArticleDOI
Monitoring low cycle fatigue damage in turbine blade using vibration characteristics
Reads0
Chats0
TLDR
In this paper, a finite element based approach is used to simulate the evolution of low cycle fatigue damage in a turbine blade, where the turbine blade is modelled as a rotating Timoshenko beam with taper and twist.About:
This article is published in Mechanical Systems and Signal Processing.The article was published on 2007-01-01. It has received 88 citations till now. The article focuses on the topics: Turbine blade & Finite element method.read more
Citations
More filters
Journal ArticleDOI
A review of damage detection methods for wind turbine blades
TL;DR: In this paper, a review of recent research and development in the field of damage detection for wind turbine blades is presented, including fiber optic and piezoelectric sensors, and four promising damage detection methods, namely, transmittance function, wave propagation, impedance and vibration based methods.
Journal ArticleDOI
Damage assessment of truss structures from changes in natural frequencies using ant colony optimization
TL;DR: The developed code is used to assess damages of truss like structures using first few natural frequencies and the outcomes show that the developed method can detect and estimate the amount of damages with satisfactory precision.
Journal ArticleDOI
Performance-Based Gas Turbine Health Monitoring, Diagnostics, and Prognostics: A Survey
TL;DR: This paper focuses on surveying state-of-the-art condition monitoring, diagnostic and prognostic techniques using performance parameters acquired from gas-path data that are mostly available from the operating systems of gas turbines.
Journal ArticleDOI
Blade resonance parameter identification based on tip-timing method without the once-per revolution sensor
TL;DR: In this article, a synchronous resonance vibration measurement method of blade based on tip-timing is presented, which requires no once-per-revolution sensor which makes it more generally applicable in the condition where this sensor is difficult to install, especially for the high-pressure rotors of dual-rotor engines.
Journal ArticleDOI
Structural Damage Detection Using Modal Curvature and Fuzzy Logic
M. Chandrashekhar,Ranjan Ganguli +1 more
TL;DR: A fuzzy logic system with a new sliding window defuzzifier is proposed for structural damage detection using modal curvatures and shows that the method detects damage very accurately at different noise levels and when some modal data are missing.
References
More filters
Book
Mechanics of Solid Materials
TL;DR: In this article, the physical mechanisms of deformation and fracture are discussed, including linear elasticity, thermo-elasticity, and viscoelastic properties of real solids.
Book
A Course on Damage Mechanics
TL;DR: In this article, the authors present a detailed analysis of the physical properties of the solid state and damage, including elasticity, deformation, shrinkage, and elasticity of the material.
Book
Fault detection and diagnosis in engineering systems
TL;DR: In this article, a fault detection and diagnosis framework for discrete linear systems with residual generators and residual generator parameters is presented for additive and multiplicative faults by parameter estimation using a parity equation.
Journal ArticleDOI
Vibration Based Condition Monitoring: A Review:
E. Peter Carden,Paul Fanning +1 more
TL;DR: In this article, the state of the art in vibration-based condition monitoring with particular emphasis on structural engineering applications is reviewed, focusing on the use of in situ non-destructive sensing and analysis of system characteristics for detecting changes, which may indicate damage or degradation.
Journal ArticleDOI
Cumulative fatigue damage and life prediction theories: a survey of the state of the art for homogeneous materials
Ali Fatemi,Linsheng Yang +1 more
TL;DR: A comprehensive review of cumulative fatigue damage theories for metals and their alloys, emphasizing the approaches developed between the early 1970s to the early 1990s, can be found in this paper, where the authors grouped these theories into six categories: linear damage rules, nonlinear damage curve and two-stage linearization approaches; life curve modification methods; approaches based on crack growth concepts; continuum damage mechanics models; and energy-based theories.