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Journal ArticleDOI

A model based identification method of transverse cracks in rotating shafts suitable for industrial machines

01 Nov 2006-Mechanical Systems and Signal Processing (Academic Press)-Vol. 20, Iss: 8, pp 2112-2147
TL;DR: In this article, a model-based transverse crack identification method for industrial machines is presented, which is validated by experimental results obtained on a large test rig, which was expressly designed for investigating the dynamic behavior of cracked horizontal rotors.
About: This article is published in Mechanical Systems and Signal Processing.The article was published on 2006-11-01. It has received 123 citations till now.
Citations
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Journal ArticleDOI
TL;DR: In this paper, the rotor startup vibrations are utilized to solve the fault identification problem using time frequency techniques and numerical simulations are performed through finite element analysis of the rotor bearing system with individual and collective combinations of faults.

170 citations

Journal ArticleDOI
TL;DR: In this paper, the strain energy release rate (SERR) theory is applied to a rotating crack and gives good results, and different methods of crack identification are presented as well as those for multi-crack identification.

170 citations

Journal ArticleDOI
TL;DR: In this paper, the authors summarize the different studies on double/multi-cracks and to note the influences, identification methods in vibration structures such as beams, rotors, pipes, etc.

142 citations

Journal ArticleDOI
TL;DR: In this article, the authors give an overview of the recent developments in this field which has considerable practical importance and present a model-based identification has played a significant role in the rapid resolution and quantification of faults.

108 citations


Additional excerpts

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Journal ArticleDOI
TL;DR: In this article, the authors investigated the use of 2* and 3* super-harmonic frequency components for detecting the presence of a single transverse breathing crack in a non-linear rotor system.

108 citations

References
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Journal ArticleDOI
TL;DR: In this paper, a crack in a structural member introduces a local flexibility that affects its vibration response, and the crack will open and close in time depending on the rotation and vibration amplitude.

1,080 citations


"A model based identification method..." refers background in this paper

  • ...The dynamical behaviour of rotors with transverse crack has been studied by many authors (extensive surveys are given in [15]-[17]) and some typical symptoms of crack are well known in a rotating shaft of a machine equipped with standard sensors: a change in 1x rev....

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Journal ArticleDOI
TL;DR: In this paper, a simple but comprehensive survey of the stability behavior of a rotating shaft with a crack, and of the forced vibrations due to imbalance and to the crack, is provided, restricted to that of the Laval rotor.

414 citations

Journal ArticleDOI
TL;DR: In this paper, a review of the field of the dynamics of cracked rotors is presented, including the modeling of the cracked part of the structure and finding different detection procedures to diagnose fracture damage.
Abstract: Propagating fatigue cracks can have detrimental effects on the reliability of rotating machinery. An early crack warning can considerably extend the durability of these very expensive machines, increasing their reliability at the same time. Vibration monitoring as a means of detecting crack initiation has been receiving much interest. A detailed study of the vibrational behavior of cracked rotating shafts, therefore, is an important problem for engineers working in the area of the dynamics of machines. This article presents a review of the field of the dynamics of cracked rotors, including the modeling of the cracked part of the structure and finding different detection procedures to diagnose fracture damage. The material should be helpful to scientists and researchers working in this area or planning to work in it in the future. Since the study of nonrotating, cracked structural elements obviously is relevant to the cracked rotor problem, the review can also be a basis for discussing the dynamics of cracked beams and columns.

387 citations


"A model based identification method..." refers background in this paper

  • ...The dynamical behaviour of rotors with transverse crack has been studied by many authors (extensive surveys are given in [15]-[17]) and some typical symptoms of crack are well known in a rotating shaft of a machine equipped with standard sensors: a change in 1x rev....

    [...]

Journal ArticleDOI
TL;DR: A model-based identification method for multiple faults is presented, made by a least-squares fitting approach in the frequency domain, by means of the minimization of a multi-dimensional residual between the vibrations in some measuring planes on the machine and the calculated vibrations due to the acting faults.

160 citations


"A model based identification method..." refers methods in this paper

  • ...For sake of clarity and simplicity, a single fault is considered, while multiple faults can be handled using the method fully described in [21]....

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  • ...The problem of the identification of the position of the crack is then reduced to an external force identification procedure, described in [21]....

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