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Relevant bibliographies by topics / Cracked shaft

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Academic literature on the topic 'Cracked shaft'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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Journal articles on the topic "Cracked shaft"

1

Muñoz-Abella, B., L. Rubio, P. Rubio, and L. Montero. "Elliptical Crack Identification in a Nonrotating Shaft." Shock and Vibration 2018 (October 24, 2018): 1–10. http://dx.doi.org/10.1155/2018/4623035.

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It is known that fatigue cracks are one of the most important problems of the mechanical components, since their propagation can cause severe loss, both personal and economic. So, it is essential to know deeply the behavior of the cracked element to have tools that allow predicting the breakage before it happens. The shafts are elements that are specially affected by the described problem, because they are subjected to alternative compression and tension stresses. This work presents, firstly, an analytical expression that allows determining the first four natural frequencies of bending vibrati

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Nanda, Jajneswar, and D. R. Parhi. "Theoretical Analysis of the Shaft." Advances in Fuzzy Systems 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/392470.

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This paper represents the dynamic response of a steel shaft which is fixed at both ends by bearing. The shaft is subjected to both axial and bending loads. The behavior of the shaft in the presence of two transverse cracks subjected to the same angular position along longitudinal direction is observed by taking basic parameters such as nondimensional depth (bi/D), nondimensional length (Li/L), and three relative natural frequencies with their relative mode shapes. The compliance matrix is calculated from the stress intensity factor for two degrees of freedom. The dynamic nature of the cracked

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Kulesza, Zbigniew. "An Induced Shaft Deflection for Rotating Shaft Crack Detection." Solid State Phenomena 199 (March 2013): 3–8. http://dx.doi.org/10.4028/www.scientific.net/ssp.199.3.

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Over the years various techniques have been developed to extract information on the dynamic state of the rotating machinery. This paper introduces a new method based on the phase data of the shaft rotation angle. Usually the phase data is omitted and only the frequency components of the vibration spectrum are taken into consideration. However, the transverse shaft crack has a specific angular location about the shaft axis. Therefore, it is supposed that by measuring the vibration response of the rotor deflected by an additional constant force applied perpendicularly to the shaft axis at differ

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Gayen, Debabrata, Debabrata Chakraborty, and Rajiv Tiwari. "Parametric study on free vibration and instability of a functionally graded cracked shaft in a rotor-disc-bearing system: finite element approach." MATEC Web of Conferences 172 (2018): 03009. http://dx.doi.org/10.1051/matecconf/201817203009.

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Free vibration and stability analysis are studied for a rotor-disk-bearing system having a radially functionally graded (FG) shaft with a transversely fully open crack, based on finite element (FE) approach. Both viscous and hysteretic internal damping are incorporated in the FE model of FG cracked shaft using two nodded Timoshenko beam element having four degrees of freedom (DOFs) at each node. Material properties of the FG cracked shaft are assumed temperature dependent and graded along radial direction following different material gradation law. FG shaft is made of two constituents material

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Parhi, D. R., and A. K. Behera. "DYNAMIC DEFLECTION OF A CRACKED SHAFT SUBJECTED TO MOVING MASS." Transactions of the Canadian Society for Mechanical Engineering 21, no. 3 (1997): 295–316. http://dx.doi.org/10.1139/tcsme-1997-0014.

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The dynamic behaviour of a cracked shaft is greatly affected by the mass moving on it. Magnitude and the travelling velocity of the mass along with the position of the crack on the shaft are the major parameters, considered in this investigation. The local flexibility due to the crack is evaluated from the theory of fracture mechanics. Then the normal modes for the cracked shaft are found and are used for formulating the equation of the moving mass system. Runge-Kutta method is used to solve the differential equation for the dynamic deflection of a simply supported cracked shaft, subjected to

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Gao, Jie, La Sheng Zhao, Qiang Zhang, and Xiao Peng Wei. "Stiffness Characteristics of a Rotor Shaft with Slant Crack Including Elliptical Front Edge." Advanced Materials Research 706-708 (June 2013): 1566–69. http://dx.doi.org/10.4028/www.scientific.net/amr.706-708.1566.

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The stiffness characteristics of a rotating cracked shaft including elliptical front edge between transverse crack and 45° slant crack have been studied here. The strain energy release rate (SERR) method has been used to calculate the stiffness matrix of two types of the crack element. Time-varying characteristics of stiffness of the straight front edge and elliptical front edge of the cracked shaft were studied in a stable rotation cycle. The analytical result of this paper shows that change of the cracked shaft stiffness raises during the increase of the crack depth. The stiffness characteri

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Liong, Rugerri Toni, and Carsten Proppe. "Finite Element Multibody Simulation of a Breathing Crack in a Rotor with a Cohesive Zone Model." ISRN Mechanical Engineering 2013 (March 13, 2013): 1–10. http://dx.doi.org/10.1155/2013/249035.

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The breathing mechanism of a transversely cracked shaft and its influence on a rotor system that appears due to shaft weight and inertia forces is studied. The presence of a crack reduces the stiffness of the rotor system and introduces a stiffness variation during the revolution of the shaft. Here, 3D finite element (FE) model and multibody simulation (MBS) are introduced to predict and to analyse the breathing mechanism on a transverse cracked shaft. It is based on a cohesive zone model (CZM) instead of linear-elastic fracture mechanics (LEFM). First, the elastic cracked shaft is modelled by

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Mohiuddin, M. A., and Y. A. Khulief. "Dynamic Response Analysis of Rotor-Bearing Systems With Cracked Shaft." Journal of Mechanical Design 124, no. 4 (2002): 690–96. http://dx.doi.org/10.1115/1.1423950.

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A general dynamic model for a large-scale rotor-bearing system with a cracked shaft is introduced. A finite shaft element with a crack is developed using a consistent finite element approach. The model accommodates shafts with tapered portions, multiple disks and anisotropic bearings. The formulation is applicable to rotor-bearing systems with different practical design configurations including intermediate bearings, shaft overhang, and stepped shaft assemblies. A reduced order form of equations of motion is obtained by invoking the actual non-planar (complex) modal transformations. The time-r

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Dirr, B. O., and B. K. Schmalhorst. "Crack Depth Analysis of a Rotating Shaft by Vibration Measurement." Journal of Vibration and Acoustics 110, no. 2 (1988): 158–64. http://dx.doi.org/10.1115/1.3269493.

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The increasing development of measurement techniques for monitoring rotor plants requires improved possibilities for the interpretation of vibration response. Therefore, computer programs that have been used will have to be constantly updated. This especially concerns the modelling of a rotor for calculation purposes. This paper deals with a propagating crack that causes the slender uniform round shaft to vibrate about its main axis. Experiments using a stationary shaft are also performed. Beach marks are used to measure the crack depth and the actual shape of the cracked cross section. These

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Saavedra, P. N., and L. A. Cuitiño. "Vibration Analysis of Rotor for Crack Identification." Journal of Vibration and Control 8, no. 1 (2002): 51–67. http://dx.doi.org/10.1177/1077546302008001526.

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A theoretical and experimental dynamic analysis of a rotor-bearing system with a transversely cracked shaft is presented. To model the system for FEM analysis, a finite element for a cracked cylindrical shaft is developed. The additional flexibility due to the crack is evaluated from the linear fracture mechanics, using a breathing crack model derived in a rigorous way. A simplified opening/closing crack model is proposed to reduce the computational effort. The resulting parametrically excited system is nonlinear, and the equations of motion are solved using Hilbert, Hughes, and Taylor integra

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Dissertations / Theses on the topic "Cracked shaft"

1

Kavarana, Farokh H. "Cracked shaft detection rig." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-03142009-040531/.

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Andruet, Raul Horacio. "Behavior of a cracked shaft during passage through a critical speed." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-11242009-020021/.

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Suherman, Surjani. "Response of a cracked rotating shaft with a disk during passage through a critical speed." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-09292009-020146/.

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Boonyaprapasorn, Arsit. "FAULT DETECTION AND DIAGNOSIS PROCESS FOR CRACKED ROTOR VIBRATION SYSTEMS USING MODEL-BASED APPROACH." Case Western Reserve University School of Graduate Studies / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=case1238469531.

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Wroblewski, Adam Christopher. "Health Monitoring of Cracked Rotor Systems using External Excitation Techniques." Cleveland State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=csu1228312469.

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Suherman, Surjani. "Transient analysis and vibration suppression of a cracked rotating shaft with ideal and nonideal motor passing through a critical speed." Diss., This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-06062008-151648/.

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Burbano, Christian Eligio Rodríguez. "Diagnóstico de falhas em máquinas rotativas." Universidade Federal de Uberlândia, 2005. https://repositorio.ufu.br/handle/123456789/14818.

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The dynamic behavior of a cracked shaft was studied both in run-up and run-down transient motion. A mathematical model of the shaft was developed , and experimental tests were performed in order to validate the model. A experimental testing rig was conducted, containing an horizontal flexible rotor with a rigid disc in the mid point between the bearings. Experimental and theo retical responses were compared for both cracked and uncracked shafts. All tests were done for several acceleration rates and unbalance conditions. For the theoretical study of dynamic response of the cracked shaft, the s

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Mohamed, Alhade Abdossllam. "Monitoring cracks in a rotating shaft." Thesis, University of Aberdeen, 2012. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=186894.

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Condition monitoring of rotating shafts is gaining importance in industry due to the need to increase machine reliability and decrease the possible loss of production due to machine breakdown. In this work, the use of vibration signals for the detection of a crack within a shaft was investigated. The research involved the measurement of vibration signals during laboratory tests on a long rotating shaft rig. The focus of the experimental work was on the effect of cracks on the dynamics and the initiation and growth of cracks in the shaft. Measurements were taken from the shaft system both with

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Haji, Zyad. "Dynamic analysis and crack detection in stationary and rotating shafts." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/dynamic-analysis-and-crack-detection-in-stationary-and-rotating-shafts(2e9dcab4-685d-4c20-8f9d-55b6892b8149).html.

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The sustainability, smooth operation and operational life of rotating machinery significantly rely on the techniques that detect the symptoms of incipient faults. Among the faults in rotating systems, the presence of a crack is one of the most dangerous faults that dramatically decreases the safety and operational life of the rotating systems, thereby leading to catastrophic failure and potential injury to personnel if it is undetected. Although many valuable techniques and models have been developed to identify a crack (or cracks) in stationary and rotating systems, finding an efficient techn

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Yingming, Xiao. "An experimental study of crack detection in a rotating shaft." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1995. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq25903.pdf.

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Books on the topic "Cracked shaft"

1

Brusic, Lucy. A Crackle Weave Companion: Exploring Four-Shaft Crackle. Quill House Publishers, 2012.

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Skiba, Grzegorz. Fizjologiczne, żywieniowe i genetyczne uwarunkowania właściwości kości rosnących świń. The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 2020. http://dx.doi.org/10.22358/mono_gs_2020.

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Bones are multifunctional passive organs of movement that supports soft tissue and directly attached muscles. They also protect internal organs and are a reserve of calcium, phosphorus and magnesium. Each bone is covered with periosteum, and the adjacent bone surfaces are covered by articular cartilage. Histologically, the bone is an organ composed of many different tissues. The main component is bone tissue (cortical and spongy) composed of a set of bone cells and intercellular substance (mineral and organic), it also contains fat, hematopoietic (bone marrow) and cartilaginous tissue. Bones a

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Book chapters on the topic "Cracked shaft"

1

Friswell, Michael I., Ralston Fernandes, Nidhal Jamia, and Sami El-Borgi. "Identification of Breathing Cracked Shaft Models from Measurements." In Rotating Machinery, Hybrid Test Methods, Vibro-Acoustics & Laser Vibrometry, Volume 8. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-30084-9_47.

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Zhou, Chunliang, Michael I. Friswell, and Jiying Li. "Condition Monitoring of Cracked Shaft using Active Magnetic Bearings." In Challenges of Power Engineering and Environment. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-76694-0_91.

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Banaszek, Slawomir. "Dynamics of Large Power Rotating Machine with Cracked Shaft." In Damage Assessment of Structures VI. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-976-8.337.

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Ghozlane, Mehdia. "Dynamic Response of Cracked Shaft in Rotor Bearing-Disk System." In Design and Modeling of Mechanical Systems - II. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17527-0_61.

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Spagnol, Joseph, Helen Wu, and Chunhui Yang. "Effects of Elliptical Crack Shape Ratio on Transverse Trajectory of a Cracked Shaft." In Robotics and Mechatronics. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-17677-8_22.

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Muñoz-Abella, B., L. Rubio, and P. Rubio. "Study of the Stress Intensity Factor of an Unbalanced Rotating Cracked Shaft." In New Advances in Mechanisms, Transmissions and Applications. Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-7485-8_49.

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Gayen, Debabrata, Debabrata Chakraborty, and Rajiv Tiwari. "Transverse Vibration and Stability of a Cracked Functionally Graded Rotating Shaft System." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-1307-7_71.

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Yadao, Adik R., and Dayal R. Parhi. "Experimental and Numerical Analysis of Cracked Shaft in Viscous Medium at Finite Region." In Advances in Structural Engineering. Springer India, 2014. http://dx.doi.org/10.1007/978-81-322-2193-7_122.

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Shneerson, Yury. "Dynmamic stability and forced vibrations of a horizontal rotor with a cracked shaft." In Asymptotic Methods in Mechanics. American Mathematical Society, 1993. http://dx.doi.org/10.1090/crmp/003/18.

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Cavalini, Aldemir Ap, Tobias Souza Morais, Nicolò Bachschmid, and Valder Steffen. "Analysis of the Dynamic Behavior of a Cracked Rotating Shaft by Using the Harmonic Balance Approach." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-91217-2_3.

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Conference papers on the topic "Cracked shaft"

1

Nabian, M., A. Vaziri, M. Olia, and H. Nayeb-Hashemi. "The Effects of Longitudinal and Circumferential Cracks on the Torsional Dynamic Response of Shafts." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-65593.

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Turbo generator shafts are manufactured through the extrusion process. This results in formation of weak planes along the extrusion direction. Under service loading (e.g. cyclic torsion due to electrical line faults), large longitudinal cracks often form in these shafts before the appearance of any circumferential cracks. The presence of these cracks could severely compromise the shaft resonance frequencies. Here, we investigated the dynamic response of solid turbo generator shafts with longitudinal and circumferential cracks. The longitudinal cracked section of the shaft section was modeled a

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Vania, A., P. Pennacchi, and S. Chatterton. "Effects of Thermal Transients on Cracked Shaft Vibrations." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-46181.

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Thermal transients can cause significant changes in the dynamic behavior of cracked rotors. The thermal expansions of the shafts cause changes of the distribution of stresses and strains, whose effects can give rise to the separation or the contact between portions of the surfaces of transverse cracks. This phenomenon can cause significant changes of the local flexural stiffness of the rotor, in the area close to the cracked section, and of the shaft lateral vibrations. However, this phenomenon must not be confused with the crack breathing, that is the periodic opening and closure of a transve

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Kavarana, Farokh H., and R. Gordon Kirk. "Cracked Shaft Detection Using the Unbalance Excitation Technique." In ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0494.

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Abstract The ever-growing interest of the modern rotordynamicist in the early detection of rotor cracks in turbomachinery has been the direct result of multiple catastrophic experiences that industry has faced in recent times due to cracked rotors. The complete failure of the rotor due to crack propagation is easily recognized as one of the most serious modes of plant failure. Even though the past decade has witnessed some laudable attempts that have been moderately successful in detecting cracked rotors, this aspect has not received the attention it warrants. A complete test rig has been desi

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XIE, Zhen-Bo, Hong-Wei LI, and Jing XIE. "The Vibration Analysis of the Cracked Shaft." In 3rd International Conference on Material Engineering and Application (ICMEA 2016). Atlantis Press, 2016. http://dx.doi.org/10.2991/icmea-16.2016.57.

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Ishibashi, Tatsuro, Atsushi Yoshida, and Tadao Kawai. "Modelling of Asymmetric Rotor and Cracked Shaft." In The 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018. Linköping University Electronic Press, 2019. http://dx.doi.org/10.3384/ecp18148180.

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Yen, H. Y., and M. H. Herman Shen. "The Effects of Fatigue Cracks on Free Torsional Vibration of Shafts." In ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/97-gt-249.

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The effect of a single-edge fatigue crack on the torsional vibration of shafts is investigated. A generalized variational principle is used to formulate the equation of motion and associated boundary conditions for the free vibration of a nonrotating shaft with a fatigue crack of arbitrary size and location. The fatigue crack is introduced in the form of a single-edge crack. The stress and strain of the cracked shaft are determined by introducing a crack function and a displacement function into the shaft’s compatibility relations. The crack function is designed to have the maximum value at th

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Wu, Wei, Junjie Gu, and Gang Guo. "Stiffness of an elliptical cracked shaft under bending." In 2015 International Conference on Intelligent Systems Research and Mechatronics Engineering. Atlantis Press, 2015. http://dx.doi.org/10.2991/isrme-15.2015.314.

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Kulesza, Zbigniew, and Jerzy T. Sawicki. "Parametrically Induced Damping in a Cracked Rotor." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-58113.

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The tendency to higher speeds in turbomachinery results in the design of more flexible shafts, which run at speeds above several of their natural frequencies. Due to stress concentration and high spin speed, the rotor dynamic system is more prone to cracks that propagate faster due to low-cycle fatigue loading. The propagating shaft crack usually leads to sudden machine failure, its damage and a serious accident. Therefore, an early shaft crack detection and warning is an important research task. A transverse shaft crack in a rotor is usually modeled as a local change in the shaft stiffness. I

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Vaziri, A., H. Nayeb-Hashemi, and H. R. Hamidzadeh. "The Effects of the Crack Surfaces Interaction and the Crack Tip Plasticity on the Dynamic Response of the Circumferentially Cracked Turbo Generator Shafts." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-42520.

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Turbo generator shafts are often subjected to complex dynamic torsional loadings, resulting in generation and propagation of circumferential cracks. These cracks can severely affect the vibration characteristics of the shafts. The effects of a circumferential crack, its size and location on the torsional dynamic response of a shaft is obtained, considering the local energy loss at the crack tip due to the cyclic plasticity and the crack surfaces interaction. The crack is taken to be normal to the shaft axis and the shaft is subjected to a harmonic torsional load. The shaft material is assumed

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Tlaisi, A., A. Akinturk, A. S. J. Swamidas, and M. R. Haddara. "Crack Detection in Shaft Using Lateral and Torsional Vibration Measurements and Analyses." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-69921.

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In this paper experimental and numerical investigations are carried out to identify the presence of a crack in a cylindrical overhanging shaft with a propeller at the free end. In the experimental study, cracks of different depths are located at the (un-cracked) maximum bending moment position. Shaft response parameters for lateral (using an accelerometer) and torsional vibrations (using shear strain gages fixed at three different locations) are obtained using the modal analysis software, LMS Test Lab™. The experimental results are used to validate the numerical results obtained using the thre

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