Academic literature on the topic 'Active vibration reduction'

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Journal articles on the topic "Active vibration reduction"

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Dymarek, Andrzej, Tomasz Dzitkowski, Krzysztof Herbuś, Piotr Ociepka, and Agnieszka Sękala. "Use of active synthesis in vibration reduction using an example of a four-storey building." Journal of Vibration and Control 26, no. 17-18 (2020): 1471–83. http://dx.doi.org/10.1177/1077546319898970.

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The article presents a method of active vibration reduction of vibrating mechanical systems. This method is based on the properties of positive rational functions, which in the case of discrete dynamical systems correspond to the characteristic function describing such systems. The method formalized uses methods for decomposing positive rational functions. The advantage of this approach is taking into account the analytical form of a characteristic function of the system being tested and the vibration-reducing force, as well as the conditions that the system should meet in the event of an acti
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Bialas, Katarzyna. "Reduction of vibrations in mechanical systems using piezoelectric elements." MATEC Web of Conferences 178 (2018): 06023. http://dx.doi.org/10.1051/matecconf/201817806023.

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The aim of study is to visualize not only the primary and active element but also sensors, returning the current state of the system. The work shows the use of piezoelectric accelerometer sensors in the active vibration reduction. In addition to the elements reduction of vibrations also are necessary elements with which it will be possible to constantly test and measure vibration. It is necessary to generate the force to appropriate executive to reduce the effects of vibration. It will be also shows how to design basic system in something special way which is the synthesis of mechanical system
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Mroz, A., A. Orlowska, and J. Holnicki-Szulc. "Semi-Active Damping of Vibrations. Prestress Accumulation-Release Strategy Development." Shock and Vibration 17, no. 2 (2010): 123–36. http://dx.doi.org/10.1155/2010/126402.

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New method for semi-active control of vibrating structures is introduced. So-called Prestress Accumulation-Release (PAR) strategy aims at releasing of the strain energy accumulated in the structure during its deformation process. The strain energy is converted into kinetic energy of higher modes of vibration which is suppressed with structural damping or by means of a damping device. The adaptation process essentially affects the first mode vibrations by introducing an elastic force that opposes the movement. Numerical simulations as well as experimental results prove that the strategy can be
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Białas, K. "The possibility of physical implementation of active vibration reduction." IOP Conference Series: Materials Science and Engineering 1182, no. 1 (2021): 012007. http://dx.doi.org/10.1088/1757-899x/1182/1/012007.

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Abstract This work presents non-classical method of design of mechanic systems with subsystem reducing vibrations. The purpose of this paper is also introduces synthesis of mechanic system with reducing vibrations understand as design of this type of systems. This work presents method of reduction unwanted vibration by using mechanical elements, electrical elements, magnetorheological damper ect. The use of such a method enables the analysis and synthesis of mechanical systems irrespective of the type and number of the elements of such a system. The purpose of this paper is also introduces syn
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Ford, Terry. "Vibration reduction and monitoring." Aircraft Engineering and Aerospace Technology 71, no. 1 (1999): 21–24. http://dx.doi.org/10.1108/00022669910252105.

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Typical passive and active vibration reduction systems are dealt with, particular emphasis being on the Westland active control of structural response system fitted to all versions of the EH101. In addition, the extensive experience acquired during the evolution of vibration health monitoring on North Sea helicopters is outlined.
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Gaul, L., and J. Becker. "Reduction of Structural Vibrations by Passive and Semiactively Controlled Friction Dampers." Shock and Vibration 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/870564.

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Reduction of structural vibrations is of major interest in mechanical engineering for lowering sound emission of vibrating structures, improving accuracy of machines, and increasing structure durability. Besides optimization of the mechanical design or various types of passive damping treatments, active structural vibration control concepts are efficient means to reduce unwanted vibrations. In this contribution, two different semiactive control concepts for vibration reduction are proposed that adapt to the normal force of attached friction dampers. Thereby, semiactive control concepts general
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Tsuji, Hideki, Hiroyuki Itoh, Shinji Mitsuta, Naoyuki Kanayama, Hideaki Kawakami, and Yukiyoshi Takayama. "Vibration Reduction of Transfer Feeder by Active Vibration Control." Transactions of the Japan Society of Mechanical Engineers Series C 61, no. 585 (1995): 1867–72. http://dx.doi.org/10.1299/kikaic.61.1867.

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SONG, Jaewon, and Byeongil KIM. "Lateral vibration reduction in vertically installed shafts by active control with LMS algorithm." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 9 (2024): 2190–93. http://dx.doi.org/10.3397/in_2024_3148.

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Machines such as generators and electric motors that use vertical shafts must avoid noise and heat problems caused by vibration. Especially in the case of vertical hydro generators, vibrations caused by water flow through the turbine and imbalance of components can lead to poor performance, premature wear of components, and even system failure. Therefore, effective control of shaft vibration is very important for system maintenance and stable operation. To solve this problem, an active control method with Least Mean Squares(LMS) algorithm were applied to the lateral vibration. In the study, th
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Wu, Yu, and Rui Huo. "Dynamical Modeling and Active Vibration Control Analysis of a Double-Layer Cylindrical Thin Shell with Active Actuators." Sci 7, no. 2 (2025): 78. https://doi.org/10.3390/sci7020078.

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The application of double-layer shell structure is very common in some situations that require complex loads and vibrations, such as key components such as the shell and wings of aerospace engines, and the shell of underwater vehicles. Many authors have conducted research on the vibration and acoustic radiation characteristics of double-layer cylindrical shells. By adding reinforcement and ribs between the double-layer cylindrical shells and optimizing structural design, passive vibration control techniques can effectively solve high frequency vibration problems, but the impact on mid to low f
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Snamina, Jacek, and Paweł Orkisz. "A Comparison of Active and Semi-Active Sliding Mode Controllers Applied in Vibration Reduction Systems." Solid State Phenomena 248 (March 2016): 93–102. http://dx.doi.org/10.4028/www.scientific.net/ssp.248.93.

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The paper presents active and semi-active vibration reduction systems applying sliding mode control systems. Calculations were completed for a laboratory system with two masses moving in a vertical direction. Support of the system is connected with the moving part of the exciter. The proposed system may be a simple model of many vibroisolated objects. In order to apply the control system of vibrations in the suspension of the upper mass, an actuator was implemented together with a spring. The role of the actuator was played by a linear inductive motor.Active and semi-active sliding mode contro
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Dissertations / Theses on the topic "Active vibration reduction"

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Ganguli, ABHIJIT. "Chatter reduction through active vibration damping." Doctoral thesis, Universite Libre de Bruxelles, 2005. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210980.

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The aim of the thesis is to propose active damping as a potential control strategy for chatter instability in machine tools.<p>The regenerative process theory explains chatter as a closed loop interaction between the structural dynamics and the cutting process. This is considered to be the most dominant reason behind machine tool chatter although other instability causing mechanisms exist.<p>The stability lobe diagram provides a quantitative idea of the limits of stable machining in terms of two physical parameters: the width of contact between tool and the workpiece, called the width of cut a
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Boffa, John. "Model Reduction of Large Structural Systems for Active Vibration Control." University of Technology, Sydney. Faculty of Engineering, 2006. http://hdl.handle.net/2100/338.

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This thesis studies the applicability of the Dynamic model reduction method that is used for direct plant order reduction in the active vibration control of large and flexible structures. A comparison of the performances between the reduced models produced by the Dynamic model reduction method and those obtained by other common model reduction methods such as the Guyan method, and the Mode-displacement method have been carried out. By using a full analytical model of a twenty storey building as the reference, each three degrees of freedom model was compared by computer simulation. The open-lo
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Huyanan, Satienpong. "An active vibration absorber for chatter reduction in machining." Thesis, University of Sheffield, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486712.

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In the early days of the manufacturing industry, the limiting factor in obtaining higher material removal rates was 'Chatter', an unstable cutting condition with excessive vibrations. Maximum productivity can only be obtained using the knowledge of the theory of regenerative chatter. In the era of modem manufacturing industry, where the greater quality and productivity are increasingly demanded, especially the requirement to understand and avoid chatter is even greater. The key answering to this challenge is to increase the rate of material removal while maintaining stable cutting conditions t
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Boffa, John. "Model reduction of large structural systems for active vibration control /." Electronic version, 2002. http://adt.lib.uts.edu.au/public/adt-NTSM20060317.113054/index.html.

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Gan, Zengkang. "Adaptive control of an active seat for occupant vibration reduction." Thesis, University of Bath, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.665426.

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Vehicle occupants are typically exposed to unpleasant whole-body vibration (WBV) for extended period of time. It is well known that the transmission of unwanted vibration to the human body can lead to fatigue and discomfort. Moreover, the unwanted vibration normally distributed in the low-frequency range has been found as the main risk factor for lower back pain and lumbago, which seriously affect the health and working performance of occupants. Thus vibration cancellation on seats has attracted considerable interest in recent years. So far, for most vehicle seats, vibration isolation is achie
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Martinovic, Zoran N. "Sensitivity of active vibration control to structural changes and model reduction." Diss., Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/53641.

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The analytical study presented here is concerned with by two types of sensitivity of active vibration control of large space structures (LSS). The first one required for assessing robustness, is the sensitivity of the performance and stability of the control system to changes in structure and to model reduction. The second type is the sensitivity of the optimum design of the control system to changes in the structure. This sensitivity is of interest in assessing the need for integrated structure/control design. Three direct rate feedback (DRF) control techniques are studied for a laboratory
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LI, MINGFENG. "ACTIVE VIBRATION CONTROL OF A GEARBOX SYSTEM WITH EMPHASIS ON GEAR WHINE REDUCTION." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1115131866.

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Clements, Kristen Lynn. "Active control of an automobile suspension system for reduction of vibration and noise." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/30359.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2005.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 79-82).<br>A new method for controlling road noise transmitted through the suspension system of an automobile was developed, using a Lincoln LS automobile as the target vehicle. In this vehicle, road surface roughness generates vibrations that are transmitted into the automobile primary through a single bushing (
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Curtis, A. R. D. "The theory and application of quadratic minimization in the active reduction of sound and vibration." Thesis, University of Southampton, 1988. https://eprints.soton.ac.uk/52272/.

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Active sound reduction is the use of active sources of sound, that is devices which are potentially sources of sound energy, to modify a preexisting sound field in such a way that the overall effect is a reduction in sound. Until recently the most common approach in active sound control was to attempt to achieve complete cancellation of the sound. This is possible at single points but is practically impossible over an appreciable region. A more modest and practical aim is to try to reduce the sound field by as much as possible by minimizing some overall measure of the amplitude of the sound fi
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Becker, Jens. "Semi-active control of friction dampers and feedforward tracking control design for structural vibration reduction." Tönning Lübeck Marburg Der Andere Verl, 2009. http://d-nb.info/995846200/04.

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Books on the topic "Active vibration reduction"

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Quelling cabin noise in turboprop aircraft via active control. National Aeronautics and Space Administration, 1997.

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Quelling cabin noise in turboprop aircraft via active control. National Aeronautics and Space Administration, 1997.

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Jansen, Maarten. Noise Reduction by Wavelet Thresholding. Springer London, Limited, 2012.

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Book chapters on the topic "Active vibration reduction"

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Landau, Ioan Doré, Tudor-Bogdan Airimitoaie, Abraham Castellanos-Silva, and Aurelian Constantinescu. "Reduction of the Controller Complexity." In Adaptive and Robust Active Vibration Control. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-41450-8_9.

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Krzyzynski, Tomasz, Igor Maciejewski, Lutz Meyer, and Henning Meyer. "A Method of Shaping the Vibro-isolation Properties of Semi-active and Active Systems." In Modelling and Control Design of Vibration Reduction Systems. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-03047-6_8.

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Platz, Roland, Serge Ondoua, Georg C. Enss, and Tobias Melz. "Approach to Evaluate Uncertainty in Passive and Active Vibration Reduction." In Model Validation and Uncertainty Quantification, Volume 3. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04552-8_34.

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Chagraoui, Hamda, Mourad Saidi, and Mohamed Soula. "Unbalance Vibration Reduction of High-Speed Turbochargers Using Active Magnetic Actuator." In Advances in Mechanical Engineering and Mechanics II. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-86446-0_49.

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Dzitkowski, Tomasz, and Andrzej Dymarek. "The Active Synthesis in Vibration Reduction Using the Example of Driving Systems." In Modelling in Engineering 2020: Applied Mechanics. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68455-6_6.

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Chomette, Baptiste, Simon Chesné, Didier Rémond, and L. Gaudiller. "Vibration Damage Reduction of On-Board Electronic Boards Using Modal Active Control." In Emboding Intelligence in Structures and Integrated Systems. Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/3-908158-13-3.551.

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Ren, Hang, Dan Zhao, Liqiang Dong, et al. "Multimodal Semi-active Dynamic Vibration Absorber Array with Ultra-Wideband Vibration Reduction Characteristics Based on Magnetorheological Elastomers." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-3317-3_25.

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Schmidt, Adam. "The Design of an Active Structural Vibration Reduction System Using a Modified Particle Swarm Optimization." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-15461-4_55.

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Belyankova, T. I., V. V. Kalinchuk, W. Hubert, and G. Schmid. "Peculiarities of vibrations of a layered inhomogeneous medium under the action of a load moving on its surface." In Wave propagation Moving load – Vibration Reduction. CRC Press, 2021. http://dx.doi.org/10.1201/9781003211372-10.

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Jarzyna, Wojciech, Michał Augustyniak, Jerzy Warmiński, and Marcin Bocheński. "Evaluation of Suppression Methods Used for Reduction of Vibrations of the Active Composite Beam." In Frontiers in Computer Education. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27552-4_94.

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Conference papers on the topic "Active vibration reduction"

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Brillante, Claudio, Marco Morandini, and Paolo Mantegazza. "H2 Periodic Control on Active Twist Rotor for Vibration Reduction." In Vertical Flight Society 70th Annual Forum & Technology Display. The Vertical Flight Society, 2014. http://dx.doi.org/10.4050/f-0070-2014-9499.

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This paper investigates the application of an active control strategy to reduce vibrations in forward flight through active twist design. The blade twist is actively induced at high frequencies by piezoelectric actuators distributed along the blade span. Macro-fiber composite (MFC) are considered as actuators, allowing a high actuation power with low voltages. The multibody software MBDyn is used to model the isolated rotor of the Bo105, whose original blades are replaced with blades embedding distributed piezoelectric actuators. The reduction of vibratory loads acting on the hub is obtained t
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Rekabi-Bana, Fatemeh, Mahmood Saadat, Nahid Kalantaryardebily, et al. "Active Vibration Reduction for the Autonomous Observation Mechanism." In 2024 IEEE Conference on Control Technology and Applications (CCTA). IEEE, 2024. http://dx.doi.org/10.1109/ccta60707.2024.10666576.

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Cho, Changik, Puneet Singh, Christopher Rahn, and Edward Smith. "Active Vibration Damping and Harmonic Vibration Reduction in an eVTOL Aircraft Model Using Electric Rotor Torque." In Vertical Flight Society 80th Annual Forum & Technology Display. The Vertical Flight Society, 2024. http://dx.doi.org/10.4050/f-0080-2024-0040.

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Rotorcraft experience significant vibrations due to periodic aerodynamic forces and moments on the rotor blades and wings. Rotor torque damping is a novel vibration damping method which uses small torque perturbations from the main electric motor to reduce vibrations. The large inertial and aerodynamic rotor loading and relatively high frequency torque perturbations mean that the rotor speed changes are small, so the rotor thrust and flight control performance are not significantly affected. This paper investigates the application of electric motor torque control for damping structural vibrati
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You, Young, and Sung Jung. "Optimal Active Twist Deployment Schedule of a Rotor for Performance Improvement and Vibration Reduction." In Vertical Flight Society 72nd Annual Forum & Technology Display. The Vertical Flight Society, 2016. http://dx.doi.org/10.4050/f-0072-2016-11444.

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In this paper, the best actuation schedules exploiting various waveform types are sought taking advantage of the global search algorithm for the reduction of the power required and/or hub vibration of a rotor in high speed forward flight. The active twist schedules include two non-harmonic inputs formed based on segmented step functions along with the simple harmonic waveform input. An advanced particle swarm assisted genetic algorithm (PSGA) is employed for the optimizer. A rotorcraft computational structural dynamics (CSD) code CAMRAD II is used to perform the rotor aeromechanics analysis. A
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Hong, Seong Hyun, Young Kim, Min Cho, and Sung Jung. "Active Vibration Reduction of Coaxial Rotor System using Multicyclic Controller with Fluid-Structure Coupling Approach." In Vertical Flight Society 81st Annual Forum and Technology Display. The Vertical Flight Society, 2025. https://doi.org/10.4050/f-0081-2025-222.

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This study investigates the active vibration reduction of a coaxial rotor system in high-speed forward flight using an individual blade control (IBC) scheme with multicyclic control strategy. A high-fidelity simulation framework is developed based on a loosely coupled analysis between a compressible three-dimensional computational fluid dynamics (CFD) solver and a comprehensive aeromechanics (CA) analysis program. The rotorcraft analysis model adopts an isolated rotor model and is validated against flight test data, resulting in reasonable agreements in predicting the rotor hub vibratory loads
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Steinwandel, Alexander, and Walter Fichter. "Effects of 2/rev Trailing Edge Flap Input on Helicopter Vibrations for Concurrent Vibration and Noise Reduction." In Vertical Flight Society 71st Annual Forum & Technology Display. The Vertical Flight Society, 2015. http://dx.doi.org/10.4050/f-0071-2015-10155.

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For the simultaneous operation of two independent active rotor controllers, one with the goal of reducing helicopter vibration, the other aiming at BVI noise reduction, the interactions between the two control tasks need to be considered in order to achieve an optimal operation. In this work, the direct interactions between BVI noise reduction using 2/rev trailing edge flap inputs and vibration reduction are investigated in the form of effects of 2/rev trailing edge flap input on 4/rev helicopter vibration. The purpose of this investigation is to find models describing this kind of interaction
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Cranga, Paul, Jérémy Jouve, and Yan Skladanek. "Active SARIB: a New Generation of Suspension for Helicopters." In Vertical Flight Society 74th Annual Forum & Technology Display. The Vertical Flight Society, 2018. http://dx.doi.org/10.4050/f-0074-2018-12756.

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The main objective of this paper is to present a new generation of active vibration system for helicopters developed by Airbus Helicopters. The design of this system is the result of an analysis performed through numerical simulations to select the most promising strategy of vibrations mitigation. Different solutions have been compared: classic active vibration control with force generators on the cabin floor, passive suspension based on DAVI system and an innovative active version of a suspension called SARIB®. The reduction of vibratory loads in the vicinity of the rotor pylon with active me
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Gaul, Lothar, and Jens Becker. "Vibration Reduction by Passive and Semi-Active Friction Joints." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-65190.

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Reduction of structural vibrations is of major interest in mechanical engineering for lowering sound emission of vibrating structures, improving accuracy of machines and increasing structure durability. Besides optimization of the mechanical design or various types of passive damping treatments, active structural vibration control concepts are efficient means to reduce unwanted vibrations. In this contribution, two different semi-active control concepts for vibration reduction are proposed that adapt the normal force of attached friction dampers. Thereby, semi-active control concepts generally
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Rogov, I. E., and L. N. Ananchenko. "ACTIVE VIBRATION REDUCTION IN AGRICULTURAL MACHINERY." In INNOVATIVE TECHNOLOGIES IN SCIENCE AND EDUCATION. DSTU-Print, 2020. http://dx.doi.org/10.23947/itno.2020.243-247.

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In article possibility of active suppression of vibrations of elements of a design of agricultural machinery is investigated. It is shown that it is possible to achieve the effective suppression of vibrations without the use of complex and expensive technical solutions, complex and time-consuming calculations and without conducting many experiments. The results of experimental research into active vibration suppression are covered.
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Henriot, Philippe, Michel Verge, and Gerard Coffignal. "Model reduction for active vibration control." In SPIE's 7th Annual International Symposium on Smart Structures and Materials, edited by Norman M. Wereley. SPIE, 2000. http://dx.doi.org/10.1117/12.388869.

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Reports on the topic "Active vibration reduction"

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Fuller, Chris R. A Distributed Active Vibration Absorber (DAVA) and Associated Control Approaches for Active-Passive Reduction of Sound and Vibration. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada389507.

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OPTIMIZATION OF STIFFNESS AND DAMPING COEFFICIENTS OF CONNECTION DAMPERS TO REDUCE THE DYNAMIC RESPONSE OF TRANSMISSION LINE STEEL TOWERS SUBJECTED TO WIND ACTION. The Hong Kong Institute of Steel Construction, 2023. http://dx.doi.org/10.18057/ijasc.2023.19.3.6.

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Tall and slender latticed steel towers, such as power transmission line towers, are very susceptible to vibrations imposed mainly by wind action. Thus, changing the design layout or making use of vibration control devices is often necessary to reduce vibration amplitudes and avoid the collapse of the structure. In this work, an alternative to the conventional types of commercial dampers is the use of elements in the connections of the structure, such as rubber rings working like connection dampers, so they can dissipate the energy of the system reducing the dynamic response of the tower. Thus,
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