Relevant bibliographies by topics / Vibration indicators

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Vibration indicators'

Author: Grafiati
Published: 6 July 2024
Last updated: 31 July 2025

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Journal articles on the topic "Vibration indicators"

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Spirin, Anatoly, Dmytro Borysiuk, Oleksandr Tsurkan, and Igor Tverdokhlib. "NFLUENCE OF VIBRATION ON THE ERGONOMIC INDICATORS OF THE PRODUCTION PROCESS." Vibrations in engineering and technology, no. 1 (108) (May 1, 2023): 45–56. http://dx.doi.org/10.37128/2306-8744-2023-1-5.

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Features of the impact of industrial vibration, the nature, depth and direction of physiological changes of various body systems depend on the level, frequency composition of vibrations and physiological properties of the human body. Vibration is one of the main causes of occupational diseases. The study of the sources of production vibration, the ways of its propagation, the specifics of the impact on the human body and protection against harmful effects is currently an urgent issue. The analysis of the latest sources shows that the majority of works consider individual elements of a complex
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Ryazancev, V., M. Gerasimov, and Y. Brazhnik. "REDUCTION OF DIFFERENTLY DIRECTIONAL VIBRATIONS TO ASYMMETRICAL BY CHANGING THE RATIO OF VALUES COMPOSING THE DRIVING FORCE." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 6, no. 5 (2021): 87–94. http://dx.doi.org/10.34031/2071-7318-2021-6-5-87-94.

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Vibrating machines play a primary role in the implementation of programs in the construction and road construction kit. The improvement of vibration machines allows to significantly increase the speed of construction and road construction work. The main working unit of a vibrating machine is a vibrating device or vibrator. Currently, in the industry, vibration devices are used with circular or directional, along a certain straight line of vibrations. Further improvement of vibrating machines is carried out in the direction of creating vibration devices with asymmetric vibrations. At present, t
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Bespalov, A. L., and I. G. Svidrak. "Universalization of the elastic system of vibration feeders with vertical electromagnetic vibration drive." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 24, no. 97 (2022): 41–45. http://dx.doi.org/10.32718/nvlvet-f9707.

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Vibrating feed bins with electromagnetic drive are widely used in the automation of production processes in mechanical engineering and instrument engineering. They are used for feeding miniature, small, or medium-sized parts to automated production equipment. This equipment is used in automatic lines, automated complexes, or any other flexible automated production facilities. These devices are most widely used for loading parts to assembly positions in automated assembly complexes. In this case, the parts fed to these positions must be located in a certain stable position. Various orientation
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JAGLA, Jan, Gwénaëlle HAESE, Pierre ROPARS, et al. "Annoyance assessment of the combined effect of railway noise and vibration including physiological measurements." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 3 (2024): 8650–61. http://dx.doi.org/10.3397/in_2024_4128.

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The prediction of annoyance due to railway transportation in residential areas is crucial to correctly dimension noise and vibration reduction solutions. In situ annoyance assessment for multiple exposition scenarios requires to convince many residents to take annoyance tests combined with noise and vibration measurements inside their homes. Such approach is not adapted to large-scale experiments. Therefore, the VibAcouPhysio project aims at studying annoyance due to railway noise and vibration in laboratory conditions. A vibrating platform combined with a high-quality sound reproduction syste
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Dzhabborov, N., A. Dobrinov, and A. Sergeev. "Vibration parameters and indicators of a dynamic tillage tool." IOP Conference Series: Earth and Environmental Science 937, no. 3 (2021): 032048. http://dx.doi.org/10.1088/1755-1315/937/3/032048.

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Abstract According to domestic and foreign research on the efficiency of active and passive vibrating tillage tools, the created vibration allows reducing the traction resistance of tillage implements compared to conventional tools, while improving the tillage quality. The study aimed to determine several vibration parameters and indicators of a dynamic tillage tool supplied with an energy storing and transmitting device: frequency and amplitude of oscillations, absolute velocity, vibration velocity, acceleration of vibration, a force of inertia, and oscillation energy. The study applied the e
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Kiyko, V. N., N. M. Naumovich, M. V. Davydov, and V. I. Zhuravliov. "Use of Cable Vibration Isolators for Vibration Protection of Quartz Generators." Doklady BGUIR 21, no. 4 (2023): 63–70. http://dx.doi.org/10.35596/1729-7648-2023-21-4-63-70.

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Vibration isolators with damping properties of steel multiwire cables for vibration protection of quartz oscillators have been studied. Modeling of vibration characteristics of structural elements was carried out using numerical methods. The elastic characteristics and design parameters of the cable for the vibration isolator are calculated. A harmonic analysis was carried out with given values of mass and stiffness under the influence of external vibrations. A sample of a cable vibration isolator has been developed and manufactured. To verify the calculated results obtained, the structure of
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Sánchez, Réne-Vinicio, Pablo Lucero, Jean-Carlo Macancela, et al. "Evaluation of Time and Frequency Condition Indicators from Vibration Signals for Crack Detection in Railway Axles." Applied Sciences 10, no. 12 (2020): 4367. http://dx.doi.org/10.3390/app10124367.

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Railway safety is a matter of importance as a single failure can involve risks associated with economic and human losses. The early fault detection in railway axles and other railway parts represents a broad field of research that is currently under study. In the present work, the problem of the early crack detection in railway axles is addressed through condition-based monitoring, with the evaluation of several condition indicators of vibration signals on time and frequency domains. To achieve this goal, we applied two different approaches: in the first approach, we evaluate only the vibratio
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Mohammed, Ouali, and Magraoui Rabah. "Contribution to Conditional Maintenance by Vibration Analysis of Rotating Machine Mechanical Failures and Proposed Solutions." Revista de Gestão Social e Ambiental 18, no. 10 (2024): e08541. http://dx.doi.org/10.24857/rgsa.v18n10-052.

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Objective: The aim of this study is to analyze the Cement Separator machine and identify potential condition indicators through vibration measurements and analysis. The goal is to diagnose and repair the machine before any material damage occurs. Background: Maintenance Technology: Modern maintenance technologies are crucial for monitoring equipment performance and planning timely maintenance interventions. Vibration Monitoring: As a key component in maintenance programs, especially for mechanical systems, vibration monitoring provides early warnings of faults based on the actual state of the
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Tian, Kunpeng, Jicheng Huang, Bin Zhang, Aimin Ji, and Zhonghua Xu. "Study on the Impact of Cutting Platform Vibration on Stalk Cutting Quality in Industrial Hemp." Agriculture 14, no. 2 (2024): 321. http://dx.doi.org/10.3390/agriculture14020321.

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In response to the unclear impact of header vibration on cutting performance (stalk cutting quality and cutting energy consumption) during field operations of industrial hemp harvesters, this study utilized a vibration recorder to collect information on header vibration during the operation of industrial hemp harvesters. Through data processing, the dominant range for the resonant frequency and amplitude of the cutting platform is primarily concentrated between 5–45 Hz and 0–35 mm, respectively. Using numerical simulation techniques, a quadratic orthogonal rotation combination experiment was c
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Shpachuk, V. P., M. A. Zasiadko, T. O. Suprun, and V. V. Dudko. "Variation coefficient of torsional vibrations of the connection nodes of vibrating machines." Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 6 (2021): 85–89. http://dx.doi.org/10.33271/nvngu/2021-6/085.

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Purpose. To formalize the dependence of the eigenfrequencies of translational and torsional vibrations of the structural elements of the vibrating machine articulated by the connection node on their design parameters and mechanical characteristics, as well as regulatory requirements for vibration activity, strength and accuracy. To develop a method for selecting the design parameters of the elastic band element of the package, taking into account the specified values of the amplitude and frequency characteristics of the dynamic loads reproduced by the supporting structure and the coefficient o
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Dissertations / Theses on the topic "Vibration indicators"

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Ashwear, Nasseradeen. "Vibration Frequencies as Status Indicators for Tensegrity Structures." Licentiate thesis, KTH, Strukturmekanik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-145164.

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Applications of vibration structural health monitoring (VHM) techniques are increasing rapidly. This is because of the advances in sensors and instrumentation during the last decades. VHM uses the vibration properties to evaluate many civil structures during the design steps, building steps and service life. The stiffness and frequencies of tensegrity structures are primarily related to the level of pre-stress. The present work investigates the possibilities to use this relation in designing, constructing and evaluating the tensegrity structures. The first part of the  present work studies the
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Sandoval, Núñez Diego Aníbal. "Diagnosis of low-speed bearings via vibration-based entropy indicators and acoustic emissions." Doctoral thesis, Universitat Politècnica de Catalunya, 2021. http://hdl.handle.net/10803/673495.

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Wind energy is one ofthe main renewable energies to replace fossil fuels in the generation of electricityworldwide. To enhance and accelerate its implementation at a large scale, it is vital to reduce the costs associated with maintenance. As com ponent breakages force the turbine to stop for long repair times, the wind industry m ust switch from the old-fashioned preventive or corrective maintenance to condition-based maintenance (also called predictive maintenance). The condition­based maintenance of pitch bearings is especiallychallenging, as the operating conditions include high mechanical
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Serra, López Roger. "Numerical and experimental investigation of spectral domain vibration based indicators for structural health monitoring." Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/586170.

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Structural health monitoring has been defined as the acquisition, validation and analysis of technical data to facilitate life- cycle management decisions. It is the result of a convergent path from many previous existing disciplines the two most influential being condition monitoring for rotary machinery and non-destructive testing. Vibration based testing presents the greatest stage of maturity of all non-destructive techniques applied to structural health monitoring. Although modal domain use is convention, spectral domain data is by nature more complete in information and requires less man
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Meuterlos, Maxime. "Développement de méthodes de normalisation des indicateurs de santé vibratoires pour la surveillance d'ensembles mécaniques basées sur les paramètres d’utilisation. Application à l’hélicoptère." Electronic Thesis or Diss., Lyon, INSA, 2023. http://www.theses.fr/2023ISAL0097.

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Les systèmes VHMS (Vibration Health Monitoring System) installés sur les hélicoptères ont un rôle stratégique pour augmenter la sécurité en vol des opérateurs et passagers. Ces systèmes consistent à enregistrer des données opérationnelles en vol, en particulier de nature vibratoire, et à surveiller l’intégrité des ensembles mécaniques par le biais d’indicateurs issus du traitement des signaux. Le principe de base se fonde sur le postulat que l’apparition d’un mode de défaillance engendre une évolution caractéristique des valeurs des indicateurs. Une limite rencontrée par les systèmes VHMS est
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Rzeszucinski, Pawel. "Development of reliable vibration-based condition indicators and their data fusion for the robust health diagnosis of gearboxes." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/development-of-reliable-vibrationbased-condition-indicators-and-their-data-fusion-for-the-robust-health-diagnosis-of-gearboxes(fa25db2f-89a5-420f-ba56-68ef7da874f9).html.

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Performing condition monitoring related tasks on any machinery is an essential element of their rational maintenance. Endeavours to detect an incipient fault within a system serve multiple purposes from increasing the safety of people responsible for operating the machines through decreasing the running and operational costs, allowing time to plan for the inevitable repairs and making sure that the downtime of the machine is kept to an absolute minimum. All these tasks gain extra importance in a case when machines are operated in dangerous conditions putting people's lives in potential jeopard
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Kestel, Kayacan. "Development of signal processing techniques for vibration-based condition monitoring of industrial rotating machines." Electronic Thesis or Diss., Lyon, INSA, 2024. http://www.theses.fr/2024ISAL0135.

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Cette thèse présente des nouvelles techniques de traitement des signaux et améliore les techniques existantes pour la surveillance des machines tournantes industrielles complexes basée sur les vibrations. La littérature sur la maintenance conditionnelle basée sur les vibrations fournit des nombreuses solutions pour révéler les modèles défectueux à partir d'un signal vibratoire. Cependant, les tests de leur performance sur les signaux des machines complexes modernes est généralement limitée. En outre, il leur manque souvent une version robuste prête à être appliquée à des mesures réelles. Cette
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Pereira, Daniel Augusto 1983. "Detecção de falhas de sensores em estruturas flexíveis com controle ativo de vibração." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264923.

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Orientador: Alberto Luiz Serpa<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-24T00:36:50Z (GMT). No. of bitstreams: 1 Pereira_DanielAugusto_D.pdf: 10049171 bytes, checksum: 63439cd1c1df78b669ff99ba303ad488 (MD5) Previous issue date: 2013<br>Resumo: Partindo-se do princípio de que detectar falhas em sistemas realimentados pode ser considerada tarefa difícil, nessa tese é proposto um método para detecção de falhas de sensores em estruturas flexíveis sujeitas a controle ativo de vibração. O método é baseado num e
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Dogan, Gozde. "Development Of A 3-camera Vision System And The Saddle Motion Analysis Of Horses Via This System." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12610877/index.pdf.

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One of the purposes of this study is to develop a vision system consisting of 3 inexpensive, commercial cameras. The system is intended to be used for tracking the motion of objects in a large calibration volume, typically 6.5 m. wide and 0.7 m. high. Hence, a mechanism is designed and constructed for the calibration of the cameras. The second purpose of the study is to develop an algorithm, which can be used to obtain the kinematic data associated with a rigid body, using a vision system. Special filters are implemented in the algorithm to identify the 3 markers attached on the body. Optimal
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Van, Dyke Jason. "Modeling Behaviour of Damaged Turbine Blades for Engine Health Diagnostics and Prognostics." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/20312.

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The reliability of modern gas turbine engines is largely due to careful damage tolerant design a method of structural design based on the assumption that flaws (cracks) exist in any structure and will continue to grow with usage. With proper monitoring, largely in the form of periodic inspections at conservative intervals reliability and safety is maintained. These methods while reliable can lead to the early retirement of some components and unforeseen failure if design assumptions fail to reflect reality. With improvements to sensor and computing technology there is a growing interest in
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Schallhorn, Charles Joseph. "Coherence-based transmissibility as a damage indicator for highway bridges." Diss., University of Iowa, 2015. https://ir.uiowa.edu/etd/2007.

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Vibration-based damage detection methods are used in structural applications to identify the global dynamic response of the system. The purpose of the work presented is to exhibit a vibration-based damage detection algorithm that calculates a damage indicator, based on limited frequency bands of the transmissibility function that have high coherence, as a metric for changes in the dynamic integrity of the structure. The methodology was tested using numerical simulation, laboratory experimentation, a
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Books on the topic "Vibration indicators"

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Smedley, Julia, Finlay Dick, and Steven Sadhra. Health surveillance. Oxford University Press, 2013. http://dx.doi.org/10.1093/med/9780199651627.003.0022.

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Health surveillance: general principles 424Skin surveillance 426Respiratory health surveillance 428Classification of hearing loss 430Patterns of hearing loss 432Inorganic lead 434Organic lead 436Surveillance for hand–arm vibration syndrome 438• Health surveillance should only be introduced where the risk assessment indicates that it is required (Regulation 6, Management of Health and Safety at Work Regulations 1999) or it meets the criteria listed in the associated Approved Code of Practice:...
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Book chapters on the topic "Vibration indicators"

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Maier, Knut. "Lubricants — Indicators for Oil System Damage and Malfunction." In Vibration and Wear in High Speed Rotating Machinery. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-1914-3_4.

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Ribeiro, R. Rocha, L. A. C. M. Veloso, and R. M. Lameiras. "Machine Learning Vibration-Based Damage Detection and Early-Developed Damage Indicators." In Topics in Modal Analysis & Testing, Volume 8. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-75996-4_4.

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Pérez-Torres, Antonio, René-Vinicio Sánchez, and Susana Barceló-Cerdá. "Classification of the Severity Level of Breakage Failure in Spur Gearboxes Through Frequency Domain Vibration Signal Analysis." In Lecture Notes in Networks and Systems. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-87065-1_42.

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Abstract In the industry, gearboxes used for their efficiency in power transmission are critical components, making early failure detection essential. This work aims to determine the ranking of condition indicators (CIs) to extract information from the vibration signal in the frequency domain for a spur gearbox and to assess the accuracy of the classification model for the failure severity level. In laboratory conditions, the tooth breakage of a pinion with different severity levels was simulated in a spur gearbox. Four accelerometers were installed in the gearbox in a vertical position to obt
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Lukpanov, Rauan E., Serik B. Yenkebayev, Duman S. Dusembinov, and Denis V. Tsygulyov. "Assessment of the Impact of Vibration Indicators on the Foundation of the Existing Building During Pile Driving." In Lecture Notes in Civil Engineering. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-85236-8_20.

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Diestmann, Thomas, Nils Broedling, Benedict Götz, and Tobias Melz. "Surrogate Model-Based Uncertainty Quantification for a Helical Gear Pair." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77256-7_16.

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AbstractCompetitive industrial transmission systems must perform most efficiently with reference to complex requirements and conflicting key performance indicators. This design challenge translates into a high-dimensional multi-objective optimization problem that requires complex algorithms and evaluation of computationally expensive simulations to predict physical system behavior and design robustness. Crucial for the design decision-making process is the characterization, ranking, and quantification of relevant sources of uncertainties. However, due to the strict time limits of product devel
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Wang, Shengjun, Lianghua Xu, Wei Xiao, and Guoqing Liu. "Comparative Analysis of Vibration Characteristics Testing for Different Pumped Storage Power Station Plants." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4355-1_43.

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AbstractThe excitation force of the plant structural vibration of pumped storage power station mainly comes from hydraulic excitation, which is obviously related to the cascade combination formed by the number of runner blades and the number of movable guide vanes of the unit. The main frequency of the excitation force is closely related to the minimum pitch diameter number of the unit. The analysis of the vibration test data of the typical pumped storage power station plants showed that the structural vibration spectrum caused by the cascade combination unit with the minimum pitch diameter nu
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Nicod, Laurent, and Philippe Clément. "Europe’s Rail FP4- Rail4EARTH Sustainable Rail Systems Progress Point of the European R&D Program." In Lecture Notes in Mobility. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-89444-2_5.

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Abstract The scope of the European R&amp;D railways project FP4-Rail4Earth (95M€ budget, 4 years, started in December 2022) funded by the European Commission covers the sustainable rail system including rolling stock, infrastructure, stations, and their sub-systems. The objective is to improve the existing sustainability performances of railways, to reinforce a more attractive and resilient transport mode and to contribute towards the objectives of a Climate Neutral Europe for 2050. The decarbonisation of diesel trains, the noise and vibration reduction, the energy saving, circular economy, re
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Dalbiso, Alemayehu Darge, and Mohammad Haj Mohammadian Baghban. "Environmental Impact of Timber Concrete Composites: An Overview." In Lecture Notes in Civil Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-69626-8_52.

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AbstractIncreased attention toward a sustainable built environment has driven the construction industry to utilize new materials such as bio-based materials and composites as an alternative to conventional materials. Timber concrete composite (TCC) structural members address performance challenges of timber construction, offering improved stiffness, sound insulation, fire resistance, and reduced deflection and floor vibration compared to timber elements. Moreover, TCC structures are lighter and have a lower carbon footprint than conventional reinforced concrete elements. Extensive research has
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Hasebe, Y., F. Kuratani, T. Yoshida, and T. Morikawa. "An Effective Indicator for Defect Detection in Concrete Structures by Rotary Hammering." In Vibration Engineering for a Sustainable Future. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-48153-7_28.

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Xu, Zhi-wei, Li-xia Lin, Nan-hong Ding, and Lei Chen. "The External Prestress Effect of Curved Tendons on the Natural Vibration Characteristics of Steel Beams." In Advances in Frontier Research on Engineering Structures. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8657-4_46.

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AbstractIn order to explore the external prestress effect of the curved tendons on the stiffness and natural vibration characteristics of the steel beam, this paper deduced the calculation equation of the natural frequency on the external prestressed simply supported steel beam of the curved arrangement, which was based on the Hamilton principle. The natural frequency is calculated by combining the example of I-shaped simply supported steel beam, which was analyzed and verified by establishing the finite element model. The results show that: the calculation of the equation is well demonstrated
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Conference papers on the topic "Vibration indicators"

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Wilson, Andrew, and Daniel Wade. "Reconstructing Spectra from IVHMS Condition Indicators." In Vertical Flight Society 73rd Annual Forum & Technology Display. The Vertical Flight Society, 2017. http://dx.doi.org/10.4050/f-0073-2017-12079.

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The US Army collects high resolution vibration data from accelerometers on over 3000 rotorcraft. This data is used to diagnose the health of the drive system for the purposes of Condition Based Maintenance. This high resolution data is not always captured and saved, however features computed from it are always available. This paper uses a machine learning technique to estimate the high resolution data from the features with negligible error up to 20 kHz. The results indicate that the Condition Indicators represent the spectrums very well, which was not previously demonstrated or assumed.
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Dempsey, Paula, Yan Chen, and Zaffir Chaudhry. "A Novel Gear Condition Monitoring Method Based on Transient Impulse Response." In Vertical Flight Society 70th Annual Forum & Technology Display. The Vertical Flight Society, 2014. http://dx.doi.org/10.4050/f-0070-2014-9528.

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In this paper a new method for gear condition monitoring is presented. The method exploits the system transient dynamic response due to impulse-like excitation produced by the repetitive gear meshing. The transient response pattern is easily observed at the underlying system or subsystem's natural frequency, also referred to as the "carrier frequency". At these carrier frequencies, the vibration magnitude is directly related to the intensity of the meshing force impulse, which is implemented as a condition indicator. Also, the modulation frequency of the filtered vibration at the "carrier freq
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Li, Yitang, Jianyun Yu, Xiaoli Zhu, Haoyue Wang, Zihan Zhang, and Jiangtao Li. "Heart Systolic/Diastolic Variability and Heart Vibration Variability: Novel Indicators for Cardiac Function Assessment Based on Seismocardiography." In 2025 6th International Conference on Bio-engineering for Smart Technologies (BioSMART). IEEE, 2025. https://doi.org/10.1109/biosmart66413.2025.11046071.

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Wade, Daniel, Hieu Ngo, Frances Love, et al. "Measurement of Vibration Transfer Functions to Inform Machine Learning Based HUMS Diagnostics." In Vertical Flight Society 72nd Annual Forum & Technology Display. The Vertical Flight Society, 2016. http://dx.doi.org/10.4050/f-0072-2016-11479.

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The US Army has improved a method for accelerating the maturity of vibration-based mechanical diagnostics, by measuring the Frequency Response Functions (FRFs) between potential failure locations and sensor locations within epicyclic gearboxes, and by building Condition Indicators (CIs) using these FRFs. The previous FRF methodology has been expanded to include frequencies up to 100 kHz, using the piezo-exciters, aircraft-installed Health and Usage Monitoring Systems (HUMS), and custom data acquisition hardware described herein. Previous CI development methodology has been improved by filterin
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He, David, Eric Bechhoefer, Yongzhi Qu, and Brandon Hecke. "Bearing Fault Diagnosis Using A Spectral Average Based Approach." In Vertical Flight Society 70th Annual Forum & Technology Display. The Vertical Flight Society, 2014. http://dx.doi.org/10.4050/f-0070-2014-9527.

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The diagnosis of bearing health through the quantification of accelerometer data has been an area of interest for many years and has resulted in numerous signal processing methods and algorithms. In this paper, a new bearing fault diagnostic approach that combines envelope analysis, time synchronous resampling, and spectral averaging of vibration signals is presented. In this method, the accelerometer signal is first digitized simultaneously with tachometer signal acquisition. Then, the digitized vibration signal is band pass filtered to retain the information associated with the bearing defec
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Dat, Tran Tien, Yasunao Matsumoto, and Hidemitsu Takei. "Extraction of Anomaly-Sensitive Features for Reinforced Concrete Deck Slabs of Steel Girder Bridges using Perturbation-Based Convolution Autoencoders." In IABSE Symposium, Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches. International Association for Bridge and Structural Engineering (IABSE), 2025. https://doi.org/10.2749/tokyo.2025.2000.

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&lt;p&gt;Extracting damage-sensitive features over a structure's long service life is essential for monitoring and assessing potential damage. Recently, autoencoders and their variants have shown promise in detecting structural anomalies without labelled datasets. However, model interpretability remains a significant challenge, leading to difficult to understand results. This study introduces a methodology using Convolutional Autoencoder for anomaly detection in reinforced concrete deck slabs from free vibration records. The approach leverages a perturbation-based method to systematically vary
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Polla, D., L. Francis, W. Robbins, and R. Harjani. "MEMS for Integrated Diagnostic Applications." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-1266.

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Abstract Microelectromechanical Systems (MEMS) technology is currently being applied to the structural health monitoring of critical aircraft components. The approach integrates acoustic emission (AE) and vibration monitoring devices with signal processing electronics to provide real-time indicators of incipient failure of aircraft (helicopter) components with a known history of catastrophic failure due to fracture. This paper describes MEMS-based sensor development, piezoelectric microsensor design and fabrication, and signal processing approaches directed toward the realization of inexpensiv
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Noever, David, and Dennis Dunaway. "Visual Exploration of Complex Avionics' Time Series." In Vertical Flight Society 72nd Annual Forum & Technology Display. The Vertical Flight Society, 2016. http://dx.doi.org/10.4050/f-0072-2016-11485.

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A successful program of aircraft health maintenance should elevate complex bus parameters to be as visually persuasive as the condition indicators (green, yellow, red) and as statistically relevant as the corresponding vibration thresholds. This work examines UH-60M avionics and introduces five visualization methods appropriate for displaying large, multi-attribute datasets: 1) panel plots for multi-attribute data on a single time axis, 2) horizon plots to color-code important regions in a compact view, 3) box plots to isolate factors that may be obscured by simple trending; 4) correlation mat
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Bonamour, Pierre, Gianni Naccarato, Frederic Champavier, Ammar Mechouche, Nassia Daouayry, and Lucas Macchi. "Use of Machine Learning to Define Optimum HUMS Acquisition Strategy." In Vertical Flight Society 75th Annual Forum & Technology Display. The Vertical Flight Society, 2019. http://dx.doi.org/10.4050/f-0075-2019-14729.

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Health and Usage Monitoring Systems (HUMS) measure vibrations levels and compute Vibration Condition Indicators to monitor Helicopters dynamic systems. Modern avionics record continuously a wealth of flight parameters. The influence of flight parameters on Vibration Condition Indicators was assessed using machine learning methods. Machine learning was used to derive Vibration Condition Indicators from flight parameters only. This derivation yielded quantitatively the influence of flight parameters. An illustration of this methodology is presented on main rotor speed. Variable rotor speed contr
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Sato, Hironao, Masahiro Oba, Takashi Hiromoto, et al. "Experimental Study on the Relationship between Combustion and Vibration in a Gasoline Engine Part 2 Characteristics of Structure’s Exciting Force and Overall Research Summary." In Noise and Vibration Conference & Exhibition. SAE International, 2023. http://dx.doi.org/10.4271/2023-01-1146.

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&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;Following Part 1 of the previous study, this paper reports the structure’s exciting force and summarize the overall research results. An experimental study was conducted to clarify the relationship between engine combustion and vibration, and to establish technology to suppress it. This study focused on the vehicle interior noise caused by combustion in which vibration transmission is the main component at high speed and high load region. A phenomenon in which both the combustion’s exciting force and the structure’s exci
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Reports on the topic "Vibration indicators"

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Tire Experimental Characterization Using Contactless Measurement Methods. SAE International, 2021. http://dx.doi.org/10.4271/2021-01-1114.

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In the frame of automotive Noise Vibration and Harshness (NVH) evaluation, inner cabin noise is among the most important indicators. The main noise contributors can be identified in engine, suspensions, tires, powertrain, brake system, etc. With the advent of E-vehicles and the consequent absence of the Internal Combustion Engine (ICE), tire/road noise has gained more importance, particularly at mid-speed driving and in the spectrum up to 300 Hz. At the state of the art, the identification and characterization of Noise and Vibration sources rely on pointwise sensors (microphones, accelerometer
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