Academic literature on the topic 'Vibration-inertial methods'

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Journal articles on the topic "Vibration-inertial methods"

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Muhammad, Shoaib, Shuai Wang, Fengming Li, and Chuanzeng Zhang. "Bandgap enhancement of periodic nonuniform metamaterial beams with inertial amplification mechanisms." Journal of Vibration and Control 26, no. 15-16 (2020): 1309–18. http://dx.doi.org/10.1177/1077546319895630.

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The aim of this study was to obtain bandgaps that are much better, that is at lower frequencies and in broader frequency ranges. Novel nonuniform metamaterial beams with periodically variable cross sections and inertial amplification mechanisms are designed and investigated by numerical and experimental methods. Flexural vibration equations of the nonuniform metamaterial beams are established, and the enhanced bandgap and vibration reduction properties are achieved by combining Bragg scattering and the inertial amplification mechanisms. Numerical results of the bandgaps for the periodic elasti
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Homma, Takahiro, and Hiroshi Yamaura. "Evaluating Inertial Parameter Uncertainty in High-Acceleration Movements and Improving Predictions Through Identification Using Free Vibration Measurements." Biomechanics 5, no. 1 (2025): 18. https://doi.org/10.3390/biomechanics5010018.

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Background/Objectives: This study aimed to examine how uncertainties in inertial properties and minimal sets of inertial parameters (MSIP) affect inverse-dynamics simulations of high-acceleration sport movements and to demonstrate that applying MSIP identified through the free vibration measurement method improves simulation accuracy. Methods: Monte Carlo simulations were performed for running, side-cutting, vertical jumping, arm swings, and leg swings by introducing uncertainties in inertial properties and MSIP. Results: These uncertainties significantly affect the joint torques and ground re
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Sun, He, Fan Li, and Jian Hui Zhao. "Application of Intelligent Materials in Vibration Control for Strapdown Inertial Navigation System." Advanced Materials Research 804 (September 2013): 275–78. http://dx.doi.org/10.4028/www.scientific.net/amr.804.275.

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This paper investigated the vibration control based on intelligent materials for strapdown inertial navigation system (SINS) from theoretical analysis to simulation verification. At first, significance of vibration control in SINS and the disadvantages of the traditional vibration control methods were set forth. Then, intelligent material and structure were introduced to improve the situation. A method of combining active and passive vibration control based on piezoelectric ceramic had been put forward. Through modeling and designing PID and fuzzy PID controller separately, the simulation resu
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Hongjin, Wang, Meng Qingfeng, and Feng Wuwei. "Discussion of the Improved Methods for Analyzing a Cantilever Beam Carrying a Tip-Mass under Base Excitation." Shock and Vibration 2014 (2014): 1–15. http://dx.doi.org/10.1155/2014/981053.

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Two improved analytical methods of calculations for natural frequencies and mode shapes of a uniform cantilever beam carrying a tip-mass under base excitation are presented based on forced vibration theory and the method of separation of variables, respectively. The cantilever model is simplified in detail by replacing the tip-mass with an equivalent inertial force and inertial moment acting at the free end of the cantilever based on D’Alembert’s principle. The concentrated equivalent inertial force and inertial moment are further represented as distributed loads using Dirac Delta Function. In
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Povkolas, K. E. "Evaluation of Effectiveness on Some Vibration Isolation Methods for Existing Buildings and Structures from Vibrodynamic Effects, Propagating in Soil Environment." Science & Technique 22, no. 2 (2023): 131–40. http://dx.doi.org/10.21122/2227-1031-2023-22-2-131-140.

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The paper presents calculations of various design schemes for vibration isolation of a building with a reinforced concrete frame from a source of vibrodynamic exposure located outside it. It is noted that in most studies, the maximum value of the velocity of vertical vibrations of the foundation or soil in front of it is used as a criterion for the risk of damage to load-bearing building structures. The main factors that determine the risk of damage to structures are identified. These include the engineering and geological conditions of the soil at the base of the affected foundations, the deg
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ПОЛІЩУК, ЛЕОНІД, та ВІТАЛІЙ КУДРАШ. "ВИБІР РАЦІОНАЛЬНОГО ТИПУ ВІБРОЗБУДУЖУВАЧА ДЛЯ ІНЕРЦІЙНИХ ВИБИВНИХ РЕШІТОК". Herald of Khmelnytskyi National University. Technical sciences 343, № 6(1) (2024): 124–29. https://doi.org/10.31891/2307-5732-2024-343-6-18.

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Casting is one of the most common methods of producing workpieces in the machine building and other industries. In particular, sand mold casting is the most common method for ferrous and non-ferrous metals. This casting method requires subsequent knocking out of the castings from the molds and pans, which is a complex technological operation that requires the use of various types of appropriate vibrating equipment, including inertial knockout grids. Automation and continuous development of production sets tasks for the modernization of vibrating equipment and the development of new design solu
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Bai, Weigang, Wenwu Feng, Peigen Wang, Ziliang Zhang, and Guoying Zhao. "Research on Interferometric Tilt Sensor for Vibration Isolation Platform." Sensors 25, no. 6 (2025): 1777. https://doi.org/10.3390/s25061777.

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Low-frequency seismic vibrations extremely limit the performance of ground simulation facilities for space-borne gravitational wave detections, which need to be substantially suppressed. Active vibration systems are thus required. However, the tilt-translation coupling of inertial sensors strongly limits the performance of vibration isolation platforms in the low frequency range, which requires a precise measurement of the low-frequency tilt signal. This study compares two methods for the tilt signal measurement: the differential-mode method and the direct method. The differential-mode method
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Weber, Mark W. "Adaptive circuits and methods for reducing vibration or shock induced errors in inertial sensors." Journal of the Acoustical Society of America 126, no. 2 (2009): 933. http://dx.doi.org/10.1121/1.3204345.

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Shakurova, R. Z., S. O. Gaponenko, and A. E. Kondratiev. "Technique for operational diagnosis of pipelines of energy systems and complexes." Power engineering: research, equipment, technology 22, no. 6 (2021): 188–201. http://dx.doi.org/10.30724/1998-9903-2020-22-6-188-201.

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THE PURPOSE. To consider the problems of reliability of pipeline systems of housing and communal services. To analyze existing methods for assessing the technical condition of pipelines. To develop an improved technique that allows you to search for various types of defects in pipelines. To develop a device for inertial excitation of low-frequency diagnostic vibration vibrations. To develop software in the LabVIEW environment for collecting, storing and processing signals from a sensitive sensor (piezoelectric sensor) installed on a pipeline. To conduct a series of experimental studies to te s
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Song, Gangbing, Hong-Nan Li, and Steve C. S. Cai. "Editorial for Special Issue “Energy Dissipation and Vibration Control: Materials, Modeling, Algorithm, and Devices”." Applied Sciences 10, no. 2 (2020): 572. http://dx.doi.org/10.3390/app10020572.

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Many engineering systems, from subsea pipelines to space structures, from moving vehicles to stationary skyscrapers, are subject to unwanted vibration excitations. Often vibration control can be considered as a problem of energy dissipation and vibration damping. The aims of this issue are to accumulate, disseminate, and promote new knowledge about vibration control, especially for topics related to energy dissipation methods for vibration damping. Topics in this issue reflect the start-of-the-arts in the field of vibration control, such as inerter dampers and pounding tuned mass dampers (PTMD
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Dissertations / Theses on the topic "Vibration-inertial methods"

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Дем`яненко, Марина Миколаївна, Марина Николаевна Демьяненко та Maryna Mykolaivna Demianenko. "Гідродинаміка та гідроаеропружність динамічних сепараційних пристроїв". Thesis, Сумський державний університет, 2021. https://essuir.sumdu.edu.ua/handle/123456789/86273.

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Процеси сепарації фаз є супутніми при протіканні більшості з основних процесів хімічних, нафтопереробних та металургійних виробництв для забезпечення якості первинної підготовки сировини, якості вихідного продукту та екологічної безпеки. У зв’язку з цим важливою науково-технічною задачею є підвищення ефективності та інтенсивності процесів сепарації гетерогенних багатокомпонентних сумішей. Розробка нових та вдосконалення існуючих способів сепарації є обов'язковою, оскільки більшість існуючих способів розділення, таких як відстоювання, фільтрування та центрифугування не дозволяють отримати очище
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Conference papers on the topic "Vibration-inertial methods"

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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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Peres Leal, Aline, André Luís Condino Fujarra, Rodrigo Matos Carnier, Rodolfo Trentin Gonçalves, and Hideyuki Suzuki. "Flow-Induced Vibration Analysis Using a Low-Cost Inertial Measurement Unit." In ASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/omae2023-105138.

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Abstract Flow-induced movements have been investigated for more than 20 years, especially in offshore platforms, where Vortex-Induced Movements (VIM) impact platform productivity, mooring lines, and risers fatigue life. However, monitoring these systems with standard methods (i.e. robots) is very expensive. In this work, a low-cost alternative is developed: we carried out experiments in the towing tank at The University of Tokyo (UTokyo), measuring the movements of a spar-type platform model with a low-cost Inertial Measurement Unit (IMU). The IMU application is beyond the computation of orien
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Duran, E. Tolga, and Dirk Braumueller. "Power Train NVH Analysis With Excite in a Four Cylinder Inline Engine by Including Crankshaft Dynamics and Flywheel Swirl." In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-24608.

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Engine mount vibration level, which is mainly driven by gas and unbalanced inertial forces, is one of the key metrics for the NVH (Noise Vibration Harshness) performance of a vehicle. In addition to gas and unbalanced inertial forces, crankshaft dynamics has also effect on engine mount vibrations. This project is concentrating in including the effect of crankshaft dynamics on engine mount vibrations with the aid of Finite Element Methods and Multi Body Dynamics. Flywheel swirl mode, its effect on engine mount vibration levels and engine mount acceleration for different flywheel configurations
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Vassilopoulos, L., and A. Heliotis. "Modeling of Shaft Couplings for Alignment and Vibration Calculations." In SNAME Propellers '88 Symposium. SNAME, 1988. http://dx.doi.org/10.5957/pss-1988-20.

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Shaft alignment and vibration calculations must account for the inertial, flexibility and damping Proper ties of the couplings used to connect components in the propulsion train. After a brief description of the most common mechanical fluid and electric couplings, the paper outlines the basic requirement s of the numerical methods used to analyze linear and nonlinear shaft systems. Lumped parameter models are then proposed to account for the role of rigid, dental disk, diaphragm and fluid couplings. Numerical examples and user guidance are provided with desire to three specific ship designs. R
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Yuksel, Osman, and Cetin Yilmaz. "Size and Topology Optimization of Inertial Amplification Induced Phononic Band Gap Structures." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71342.

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In this study, inertial amplification induced phononic band gaps are attained by performing structural optimization on a compliant unit cell mechanism of a one-dimensional periodic structure. First of all, stop band characteristics of the lumped parameter model of the unit cell mechanism is discussed. Next, the distributed parameter model of the compliant unit cell is presented. In order to obtain wide and deep inertial amplification induced stop bands, both size and topology optimization methods are utilized considering the distributed parameter model of the unit cell mechanism. The band gap
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Bond, Arthur, Brent D. Bottenfield, Robert N. Dean, et al. "3D Printed MEMS-Scale Vibration Isolators." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-24357.

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Abstract Mechanical vibration isolation is an important element for many traditional MEMS devices, (e.g., MEMS inertial sensors and micro-optics) that are deployed in harsh environments (e.g., aerospace applications or automotive applications). Without suitable vibration isolation, environmental vibrations can potentially damage these devices. Micro-scale mechanical vibration isolators usually consist of a center proof mass pad, a suspension system, and a surrounding frame. The isolator functions as a mechanical low-pass filter that provides useful attenuation of high frequency environmental v
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Xu, Yuanzhi, Zongxia Jiao, Yaoxing Shang, and Shuai Wu. "Improved Exact Solution for Axial FSI Model of Liquid-Pipes Considering Complex Constraints." In BATH/ASME 2016 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/fpmc2016-1762.

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The fluid-structure interaction (FSI) can be observed significantly in the axial vibration of the liquid-filled pipe system. When distributed friction was neglected, the model could be solved with an exact solution without numerical error, developed from the method of characteristics (MOC). Then time-line interpolations have been employed to reduce the high time cost and retain the accuracy, named as the improved exact solution. For the purpose of practical applications, series connection of double-pipes is discussed in this paper. And complex constraints, including elastic, damping and inerti
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Li, Chen, and Hong Zhaobin. "Robust Control of Coordinated Motion for Free-Floating Space Flexible Manipulator by Singular Perturbation Approach." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86159.

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The robust control of coordinated motion and active vibration control for free-floating space flexible manipulator with an attitude-controlled base are studied. The dynamic equations of the system are developed by using the Lagrangian assumed modes methods, it is verified that the dynamic equation can be linearly dependent on a group of inertial parameters. Based on the results and under the assumption of two-time scale, singular perturbation model of the space flexible manipulator system is obtained. The fast subsystem controller will damp out the vibration of the flexible link using optimal
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Borges Farconi, Leonardo, and Matias Bestard Körner. "Methods and Procedure for the nonlinear dynamic characterization of Inertial Sensors under diverse operational conditions." In ESA 12th International Conference on Guidance Navigation and Control and 9th International Conference on Astrodynamics Tools and Techniques. ESA, 2023. http://dx.doi.org/10.5270/esa-gnc-icatt-2023-062.

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Gyroscopes and accelerometers are sensors of ultimate importance in Inertial Navigation Systems (INS), where the rate and acceleration readings are cumulated to estimate the current attitude and position of a system. The errors in those readings therefore degrade the attitude and position estimates with time. With the purpose of reducing those errors inertial sensors have been characterized in laboratories to better model and compensate the errors by means of calibrations in the respective navigation filters or to simulate them for performance analysis. Historically, these errors have been red
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Acar, Mustafa A., Steven W. Shaw, and Brian F. Feeny. "Nonlinear Dynamics of Flexible Rotating Shafts With Centrifugal Pendulum Vibration Absorbers." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-47889.

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We consider the nonlinear vibration response of rotating flexible shafts fitted with centrifugally driven pendulum vibration absorbers (CPVAs) that are used to address engine-order torsional vibrations. The model used to represent the behavior of the flexible shaft consists of two lumped inertial elements with an interconnecting stiffness element, which captures the rigid body and fundamental torsional vibration modes of the rotor. The absorbers are centrifugally driven pendulums fitted to a rotor element, such that their natural frequencies scale with the rotor speed, and can thus tuned to a
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