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Journal articles on the topic 'Vibration. Impact'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Yu, Dongyang, Feihu Peng, Zhihao Zeng, et al. "Vibrational Dynamics of Rice Precision Hole Seeders and Their Impact on Seed Dispensation Efficacy." Agriculture 14, no. 2 (2024): 324. http://dx.doi.org/10.3390/agriculture14020324.

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This investigation considered the effects of both internal and external excitation vibrations on the efficacy of the seed dispenser in a rice precision hole seeder. Through comprehensive field tests, we analyzed vibrational characteristics during direct seeder operations and established a vibration seeding test bed for systematic examination of these effects. Time-domain analysis of the vibration data revealed a predominantly vertical vibration direction, with notably higher levels in sandy loam soil compared to clay loam. A correlation was observed between increased engine size and rotary plo

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2

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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3

Xu, Jie, Guozhang Wang, and Jiyan Lin. "Coupled vibration characteristics and optimization design of the cylindrical-exponential ultrasonic concentrator." Journal of Physics: Conference Series 2822, no. 1 (2024): 012073. http://dx.doi.org/10.1088/1742-6596/2822/1/012073.

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Abstract In this study, the vibrations of cylindrical-exponential ultrasonic concentrators are investigated, with the objective of improving energy transfer efficiency. Traditional analyses, often one-dimensional, have been found to inadequately consider the effects of height on vibration behaviour. To address this gap, the equivalent elasticity method is employed to provide a more comprehensive understanding of vibrational phenomena. The coupled vibration of the concentrator is regarded as an interaction between a longitudinal vibration and a plane radial vibration. A mechanical coupling coef

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Stosiak, Michał, Paulius Skačkauskas, and Adam Deptuła. "THE IMPACT OF MECHANICAL VIBRATIONS ON HYDRAULIC VALVES AND THE POSSIBILITY OF REDUCING THE EFFECTS." Aviation 28, no. 1 (2024): 40–48. http://dx.doi.org/10.3846/aviation.2024.20904.

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The paper shows that mechanical vibrations occur in a wide frequency range in the hydraulic systems operating in the real world. Hydraulic valves are also exposed to these vibrations. The paper gives examples of vibration sources and suggests that the influence of vibrations on hydraulic valves could be reduced. Particular attention was paid to the vibrating proportional distributor. The amplitude-frequency spectrum of pressure pulsation in a hydraulic system with a vibrating proportional distributor was analysed. During the tests, the frequency of external mechanical vibrations acting on the

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5

Mikhlin, Yuri V., and S. N. Reshetnikova. "Dynamical interaction of an elastic system and a vibro-impact absorber." Mathematical Problems in Engineering 2006 (2006): 1–15. http://dx.doi.org/10.1155/mpe/2006/37980.

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The nonlinear two-degree-of-freedom system under consideration consists of the linear oscillator with a relatively big mass, which is an approximation of some continuous elastic system, and of the vibro-impact oscillator with a relatively small mass, which is an absorber of the linear system vibrations. Analysis of nonlinear normal vibration modes shows that a stable localized vibration mode, which provides the vibration regime appropriate for the elastic vibration absorption, exists in a large region of the system parameters. In this regime, amplitudes of vibrations of the linear system are s

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6

Kowalska-Koczwara, Alicja, Filip Pachla, and Rafał Burdzik. "Research on Human Exposure to Transport-Induced Vibration in Buildings." Applied Sciences 14, no. 19 (2024): 9016. http://dx.doi.org/10.3390/app14199016.

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The analysis of human perception of vibrations in buildings is a critical aspect of structural engineering, particularly as urbanization intensifies and the proximity of vibration sources to buildings increases. This paper addresses the frequent errors in the assessment and diagnosis of the impact of vibrations on building occupants. Despite stringent standards and detailed methodologies, misinterpretations and incorrect implementations of these guidelines are common, leading to flawed diagnostic studies. These errors often stem from the misuse of measurement equipment, inappropriate selection

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7

Grosman-Dziewiszek, Patrycja, Benita Wiatrak, Wojciech Dziewiszek, et al. "Influence of 40 Hz and 100 Hz Vibration on SH-SY5Y Cells Growth and Differentiation—A Preliminary Study." Molecules 27, no. 10 (2022): 3337. http://dx.doi.org/10.3390/molecules27103337.

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(1) Background: A novel bioreactor platform of neuronal cell cultures using low-magnitude, low-frequency (LMLF) vibrational stimulation was designed to discover vibration influence and mimic the dynamic environment of the in vivo state. To better understand the impact of 40 Hz and 100 Hz vibration on cell differentiation, we join biotechnology and advanced medical technology to design the nano-vibration system. The influence of vibration on the development of nervous tissue on the selected cell line SH-SY5Y (experimental research model in Alzheimer’s and Parkinson’s) was investigated. (2) Meth

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8

Mohd Fadhli, Abd Rashid, Alias Noraliani, Ahmad Kamarudin, Sa'ari Radzuan, Ramli Mohd Zamri, and Ibrahim Zulkiflee. "Impact of Vibration on Double-Porosity Unsaturated Laterite Soil with Different Water Contents." MATEC Web of Conferences 255 (2019): 02007. http://dx.doi.org/10.1051/matecconf/201925502007.

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Engineering practices, natural and man-made vibrations phenomena such as blasting, construction machinery and operations, and vehicle traffic vibrations can cause stresses to soils. In addition, changes in moisture content may affect the speed of liquid penetrating the soils. Therefore, the impacts due to vibrations and changes in moisture contents need to be addressed to ensure geo-environment sustainability. This can be achieved by conducting laboratory experiments to determine the behaviour of deformable double-porosity soil samples with different water contents subjected to non-repeated vi

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9

Kovrova, Viktoriia, Viktoriia Volkova, and Leonids Pakrastins. "The impact of vibration on buildings: Problems and solutions." E3S Web of Conferences 534 (2024): 01010. http://dx.doi.org/10.1051/e3sconf/202453401010.

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The article presents a comprehensive overview of a study investigating the influence of soil-foundation interaction on the natural frequencies and vibration safety of reinforced concrete cellular and frame buildings. Through numerical modelling and analysis, the researchers investigate the relationship between structural modes and soil-induced vibrations, emphasizing the sensitivity of vibration frequencies to soil composition. Findings reveal that alterations in foundation conditions can significantly affect building dynamics, particularly in mid-rise structures, highlighting the importance o

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10

GODZHAEV, Z. A., V. V. SHEKHOVTSOV, M. V. LIASHENKO, A. I. ISKALIEV, and P. V. POTAPOV. "TEST STAND FOR VIBRATION ISOLATORS OF VEHICLE CABIN SUSPENSION." Fundamental and Applied Problems of Engineering and Technology, no. 5 (2021): 165–73. http://dx.doi.org/10.33979/2073-7408-2021-349-5-165-173.

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Modern vehicles includes a cabin suspension that provides reducing of amplitudes of vibration impacts on the cabin and if possible absorption of vibration energy portion. The cabin suspension includes vibration isolators which have various constructions and operation principles: mechanical, hydraulic, pneumatic and combined mechanisms. Stand tests provides evaluation of vibration isolators ability to reduce amplitudes of impacts on the cabin from the vehicle frame down to a necessary level during normative lifetime. This paper presents the description of the tests stand for life tests of a veh

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11

Pelmear, P. L., and D. K. N. Leong. "EU Directive on Physical Agents — Vibration." Journal of Low Frequency Noise, Vibration and Active Control 21, no. 3 (2002): 131–39. http://dx.doi.org/10.1260/026309202321164702.

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Vibrations that arouse human health concerns are classified into two main categories: (1) hand-arm vibrations (HAV) and (2) whole-body vibrations (WBV). Hand-transmitted vibration from a power or impact tool affects the upper extremities of the body. WBV affects the entire body and is transmitted from a vibrating seat, bed or floor to a person who is in a sitting, Iying or standing position. The EU Directive April 5, 2002 provides exposure limit and action values for both HAV and WBV. These values have taken into consideration recent advances in knowledge and the political judgment of the Memb

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12

Tomberg, Tonu, and Arvi Toomik. "ENVIRONMENTAL IMPACT OF MINE BLASTING." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 1 (June 20, 1999): 213. http://dx.doi.org/10.17770/etr1999vol1.1872.

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The blasting is the predominating method o f breaking rocks in various surface and underground mines. At the same time some damaging impacts on environment are evident: noise, gas, dust, flyrock and ground vibration. The last factor is most important for safety o f constructions, buildings and various natural objects in the vicinity o f mining area. The ground vibration parameters, crucial for safety o f endangered objects have a significant correlation with charge weight and distance o f blasting. The properties o f vibration medium impact on the value o f these parameters. This study tried t

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13

Dolezal, Franz, Andreas Reichenauer, Armin Wilfling, Maximilian Neusser, and Rok Prislan. "Recording, Processing, and Reproduction of Vibrations Produced by Impact Noise Sources in Buildings." Acoustics 6, no. 1 (2024): 97–113. http://dx.doi.org/10.3390/acoustics6010006.

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Several studies on the perception of impact sounds question the correlation of standardized approaches with perceived annoyance, while more recent studies have come to inconsistent conclusions. All these studies neglected the aspect of whole-body vibrations, which are known to be relevant for the perception of low-frequency sound and can be perceived especially in lightweight constructions. Basically, the contribution of vibrations to impact sound annoyance is still unknown and could be the reason for the contradictory results. To investigate this aspect, we measured vibrations on different ty

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14

Konieczny, Lukasz, Pawel Fabis, Jonas Matijošius, Kamil Duda, Piotr Deuszkiewicz, and Arturas Kilikevičius. "Analysis of the Impact of Vibrations on the Driver of a Motor Vehicle." Applied Sciences 15, no. 10 (2025): 5510. https://doi.org/10.3390/app15105510.

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Vibration can have a significant impact on long-term health, driver comfort, and vehicle performance. With a focus on steering wheel vibrations, this study examines both general and local vibrations that affect the driver. Under real-world conditions, a series of controlled test drives were conducted, with high-precision accelerometers mounted on the driver’s seat and steering wheel recording vibration data. The measurements were conducted in accordance with ISO 5349 and ISO 2631-1, which guaranteed a consistent assessment of vibration exposure. The results suggest that the daily vibration exp

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15

Żurawski, Mateusz, and Robert Zalewski. "Damping of Beam Vibrations Using Tuned Particles Impact Damper." Applied Sciences 10, no. 18 (2020): 6334. http://dx.doi.org/10.3390/app10186334.

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The presented paper reveals an innovative device which is the Tuned Particle Impact Damper (TPID). The damper enables the user change the dynamical features of the vibrating system thanks to rapidly tuning the volume of the container where the grains are locked. The effectiveness of proposed semi-active damping methodology was confirmed in experiments on vibrations of a cantilever beam excited by kinematic rule. Various damping characteristics captured for different volumes of the grains container and mass of granular material are presented. It is confirmed that the proposed TPID device allowe

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16

Qin, Bin, Md Mahbub Alam, and Yu Zhou. "Free vibrations of two tandem elastically mounted cylinders in crossflow." Journal of Fluid Mechanics 861 (December 21, 2018): 349–81. http://dx.doi.org/10.1017/jfm.2018.913.

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The paper presents an experimental investigation on the flow-induced vibrations of two tandem circular cylinders for spacing ratio $L/D=1.2{-}6.0$ and reduced velocity $U_{r}=3.8{-}47.8$, where $L$ is the cylinder centre-to-centre spacing and $D$ is the cylinder diameter. Both cylinders are allowed to vibrate only laterally. Extensive measurements are conducted to capture the cylinder vibration and frequency responses, surface pressures, shedding frequencies and flow fields using laser vibrometer, hotwire, pressure scanner and PIV techniques. Four vibration regimes are identified based on the

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17

Min, Wei, Hongyu Wang, Zhi Zheng, Dong Wang, Hong Ji, and YuBo Wang. "Visual experimental investigation on the stability of pressure regulating poppet valve." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 234, no. 12 (2020): 2329–48. http://dx.doi.org/10.1177/0954406220905872.

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The unstable vibration of a poppet valve drastically fluctuates pressure which directly affects the stability, reliability and safety of a hydraulic system. The unstable vibration of the poppet and cavitation is studied using visual experiments. Experimental results show that for a poppet valve, an orifice at the front of the valve cavity, the compressibility of oil in the sensitive cavity will lead poppet to unstable vibrations. For poppet valve without orifice, the instable vibration appears as three states: impact valve seat, transition (impact or non-impact valve seat occurs randomly) and

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18

Edilyan, S. V., and Kh S. Yavruyan. "Analytical Overview of the Methods of Controlling the Parameters of Vibratory Compaction of the Concrete Mixes." Modern Trends in Construction, Urban and Territorial Planning 3, no. 3 (2024): 15–21. http://dx.doi.org/10.23947/2949-1835-2024-3-3-15-21.

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Introduction. A historical (retrospective) overview of the evolution and application of the methods of concrete mixture compaction by vibration, as well as an overview of the breakthrough scientific+ advancements in the studied field have been presented. The use of the dry concrete mixes that reduce cement consumption, accelerate the strength gain of concrete, reduce the shrinkage strain and heat emission and increase the strength and durability of products has been proposed. The theoretical and practical issues of vibratory compaction of the concrete mixes, the research on the effect reached

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19

BIENIEK, Piotr, Grzegorz KOWALIK, and Karol ŁYSIAK. "Influence of Technological Instruments on the Course of Vibration Tests Carried Out on the Inductor of Vibrations for 120 mm Mortar Cartridges." PROBLEMY TECHNIKI UZBROJENIA 159 (May 16, 2022): 47–71. http://dx.doi.org/10.5604/01.3001.0015.8553.

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The paper deals with a proper selection of technological instruments for fixing 120 mm mortar cartridges into the vibrations inductor at laboratory testing. The work was aimed to find out the influence of modified technological instruments on the course of vibration tests in comparison to an original design which had been changed along with performed trials to take into account the fixation on the vibrations inductor and matching with the tested sample. Aspects connected with the improvement of the technological handle, which is a transitional device between the vibrating system and tested sam

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20

Serhii, Burlaka. "THE INFLUENCE OF VIBRATIONS ON THE EFFICIENCY OF THE INTERNAL COMBUSTION ENGINE." Vibrations in engineering and technology, no. 1(112) (April 22, 2024): 23–27. http://dx.doi.org/10.37128/2306-8744-2024-1-3.

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This article is devoted to the study of the influence of vibrations on the efficiency and reliability of the internal combustion engine (ICE). The authors consider in detail the amount of vibration that occurs as a result of engine operation and its possible consequences for various components. The article examines modern methods of vibration analysis and their impact on various types of technical systems, including electromechanical, hydromechanical, and thermal energy equipment. Vibration reduction technologies and their implementation to increase the efficiency of technical systems are bein

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Smirnov, V. A. "Protection of Bearing Structures of Buildings Against the Influence of Vibration Generated by Railway Transport." Zhilishchnoe Stroitel'stvo, no. 12 (2020): 40–46. http://dx.doi.org/10.31659/0044-4472-2020-12-40-46.

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Currently, the railway network is widely developed, many of which pass through settlements and cities; in some proximity to buildings, including high-rise buildings. The movement of trains on the track causes a certain level of vibrations that are transmitted through the ground to nearby buildings, and cause vibrations of various structures. In this regard, when designing railway tracks or constructing buildings in some proximity to railways, it is necessary to assess the possible vibration impact of rail transport on structures at the design stage and, if necessary, provide measures to protec

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Nielepkowicz, K., A. Bąkowska, and M. Maślakowski. "The Influence of Train-Induced Ground Motion in Assessments of Dynamic Impact on Structures." Archives of Civil Engineering 64, no. 4 (2018): 49–63. http://dx.doi.org/10.2478/ace-2018-0062.

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Abstract In this study, the issue of intensity of cargo train-induced soil vibrations is presented. Oscillations were measured in Warsaw-Rembertow location with application of set of seismic receivers. The analysis concerns the ground vibration differentiation issue, depending on considered direction of oscillation propagation plane. Statistic distribution of vibration intensity for directions in 3-D space were done. The issue of potential effect on engineering structures of recorded vibrations was raised. The impact based on Scale of Dynamic Effects standard was estimated in the article. Vibr

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23

Nikulina, S. A., A. V. Perminov, and T. P. Lyubimova. "Thermal vibrational convection of a pseudoplastic fluid in a rectangular cavity." Вестник Пермского университета. Физика, no. 3 (2020): 14–23. http://dx.doi.org/10.17072/1994-3598-2020-3-14-23.

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Thermal vibrational convection of a pseudoplastic fluid in a closed rectangular cavity, which is in zero gravity and performing longitudinal high-frequency linearly polarized vibrations, is studied. The temperature gradient is perpendicular to the direction of vibration. The system of equations of thermovibrational convection of a Williamson pseudoplastic fluid is given. The problem was solved by the finite difference method. The effect of vibrations on the structure and intensity of flows is investigated. The magnitude of the vibrational effect on the liquid was determined by the vibrational

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24

Foschi, Ricardo O., and Ashwani Gupta. "Reliability of floors under impact vibration." Canadian Journal of Civil Engineering 14, no. 5 (1987): 683–89. http://dx.doi.org/10.1139/l87-098.

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Uncomfortable vibrations is a serviceability limit state that must be taken into account in the design of residential floors. A finite strip analysis of a floor system, previously developed for static loads, is extended to dynamic problems. This analysis is applied to the problem of transient vibrations set up by a footfall impact, considering two persons on the floor: an impacter and a receiver. The floor response at the receiver's location is utilized in conjunction with human vibration tolerance data to determine a floor dynamic rating. The variability in this rating is assessed as a functi

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Zhao, Yue Min, Ke Wang, Liang Dong, Bo Zhang, Xu Liang Yang, and Zai Sheng Zhu. "Study on Impact of Vibration Direction on Linear Vibration Screening Effect." Applied Mechanics and Materials 226-228 (November 2012): 186–90. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.186.

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Based on Hertz-Mindlin contact model in software EDEM by discrete element method, using linear vibrating screen 360 mm×600 mm, movement characteristics of particle group on sieve plate and law of particles going through sieve plate were studied in screening process of coal in certain conditions, which were as follows: dip angle was 0 °, amplitude was 5 mm, frequency was 11 Hz. The simulation test results show that there are important influences of vibration direction on screening process. And influence law of vibration direction on screening effect was revealed finally. The paper also gained m

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Bróż, Natalia, and Piotr Nazarko. "Challenges in assessing the vibrations influence on people in buildings using non-contact measurements." Journal of Civil Engineering, Environment and Architecture 70 (October 18, 2023): 51–64. http://dx.doi.org/10.7862/rb.2023.5.

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This research article presents a~comparative analysis of vibration assessments in lecture halls to investigate their influence on people using contact (accelerometers) and non-contact (laser vibrometers) measurement techniques. The study aims to verify the accuracy and reliability of vibration analysis in relation to two approaches and determined physical parameters, i.e. acceleration amplitudes and vibration velocities. The intriguing fact was that none of the building users reported any perceived discomfort from vibrations, despite the determined parameters of the signal measured using a~las

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Handayani, Dewi, Amirotul M. H. Mahmudah, and Septia Nur Triharningsih. "Sistematic Literatur Review (SLR) : TINJAUAN REGULASI GLOBAL TERHADAP BAKU MUTU GETARAN AKIBAT AKTIVITAS TRANSPORTASI DI INDONESIA." Jurnal Teknik Sipil dan Arsitektur 30, no. 1 (2025): 107–14. https://doi.org/10.36728/jtsa.v30i1.4469.

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Transportation modes, whether land, sea, or air, can cause significant vibration impacts that can disturb the surrounding environment. The vibrations caused by the three modes of transportation are ground vibrations that impact people in the environment around the transportation mode. Vibration impacts from these modes of transportation must be controlled through strict regulations for human comfort and health and to maintain the integrity of building structures around the operating area. Indonesia has regulations regarding vibration quality standards regulated in KepMenLH No. 49 of 1996 conce

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28

Hu, Pan, Haitao Wang, Chunlin Zhang, Liang Hua, and Guiyun Tian. "Wheel-Rail Contact-Induced Impact Vibration Analysis for Switch Rails Based on the VMD-SS Method." Sensors 22, no. 18 (2022): 6872. http://dx.doi.org/10.3390/s22186872.

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When trains pass through damaged switch rails, rail head damage will change wheel–rail contact states from rolling frictions to unsteady contacts, which will result in impact vibrations and threaten structural safeties. In addition, under approaching and moving away rolling contact excitations and complex wheel–rail contacts, the non-stationary vibrations make it difficult to extract and analyze impact vibrations. In view of the above problems, this paper proposes a variational-mode-decomposition (VMD)-spectral-subtraction (SS)-based impact vibration extraction method. Firstly, the time domain

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29

Shevchenko, Heorhii, Oleksandr Sushchenko, and Halyna Zozulia. "Oscillation modes of vibrating feeders with vibro-impact adaptive drive at the output of reflacted ore from chambers of wining blocks." E3S Web of Conferences 109 (2019): 00087. http://dx.doi.org/10.1051/e3sconf/201910900087.

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The oscillation modes of vibrating feeders with vibro-impact adaptive drive are researched, which are intended for output and loading of reflacted ore from chambers of wining blocks at underground mining, or other bulk media from bunkers and so on, under complicated vibration conditions. The resonant polyfrequency oscillations of the impactor of the vibro-impact drive of feeders with such drive in vibro-impact modes are excited, which through one-side elastic elements are transmitted to the feeder tray, and in the pillar of the reflacted ore in the chamber above the tray. With increasing load

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30

Pastukhova, Lilia, Vladimir Alekhin, Sergey Gorodilov, and Antonina Sekacheva. "NUMERIC ANALYSIS OF VIBRATION IMPACT OF SUBWAY ON MULTI-STOREY BUILDING." Akustika 34 (November 1, 2019): 59–65. http://dx.doi.org/10.36336/akustika20193459.

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The authors carried out the numerical analysis of vibration impact of subway on the multistory residential building. Supposed building site is situated in Yekaterinburg and placed above the subway line tunnels in the middle of the track between the stations. The analysis is aimed to simulate the initiation of vibration during the period when the train passes, to assess the impact of availability of vibration-damping layer on this process, and also to obtain values of vibrational accelerations in order to predict vibration levels and volumes of sound in reference points in living spaces.

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Baca, Michal. "Structural Vibration Analysis with Reference to Different Standards." Buildings 15, no. 11 (2025): 1951. https://doi.org/10.3390/buildings15111951.

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The necessity for appropriate control of the surrounding area of the construction site is especially imperative during geotechnical work, when a high amount of energy is transferred to the ground. To ensure the safety of structures in the vicinity of the works, vibration sensors are used to monitor the area. Moreover, increased vibration levels can be reduced by adjusting the applied technology, specifically Rapid Impact Compaction. This paper sets out a number of standards for the assessment of the impact of vibrations on structures near the construction site. Furthermore, this paper presents

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Bazhenov, Viktor, Olga Pogorelova, and Tetiana Postnikova. "Coexisting Regimes in Hysteresis Zone in Platform-Vibrator with Shock." Strength of Materials and Theory of Structures, no. 107 (October 29, 2021): 3–19. http://dx.doi.org/10.32347/2410-2547.2021.107.3-19.

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Molding processes are among the most important in the manufacture of reinforced concrete structures. Vibration and shock-vibration technologies for concrete mixtures compaction and concrete products molding have the greatest distribution in the construction industry. Therefore, the issues of optimizing vibration modes, correct choice of vibration equipment do not lose their relevance. The article discusses the dynamical behavior of a shock-vibrational low-frequency resonant machine. Its mathematical model corresponds to a two-body 2-DOF vibro-impact system with a soft impact, which is simulate

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33

RAGULSKIS, Kazimieras, and Liutauras RAGULSKIS. "Vibration Drives with Two Impacting Pairs for Precise Robots." Mechanics 29, no. 2 (2023): 115–24. http://dx.doi.org/10.5755/j02.mech.32277.

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Such robots, when they consist of two separate sequentially connected robots, are of high precision. The first part – robot is not of a high precision adjusted to perform comparatively large displacements, while the second part – robot is meant to perform comparatively small displacements with very high precision if compared with the first part. Motors of all the motions are of vibrational type. First of all, vibrators of vibrational impact type with impacts of rigid bodies are investigated. Earlier it was shown that in some types of nonlinear systems between the hard and soft zone

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34

Papán, Daniel, Zuzana Papánová, and Bibiána Martinovičová. "Using Modern Experimental Equipment to Determine Process Vibration Effects on Building and the Human Body." International Journal of Education and Information Technologies 16 (January 9, 2022): 72–80. http://dx.doi.org/10.46300/9109.2022.16.8.

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The paper presents the original results of an experimental dynamic study of the impact of vibrations generated by a manufacturing process on a building and its occupants. Machinery can cause extraordinary dynamic loads through technical seismicity. For research and education purposes, the article includes a methodology for measuring and evaluating random vibration in the context of assessing the adverse effects of vibration. In particular, this involves the identification of the dominant frequency bands, the amplitude and frequency composition, and the identification of the main source of vibr

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Zav'yalov, Aleksey. "Prediction of Re-Radiated Noise and Vibration Generated in the Vicinity of Railroad Lines." Proceedings of Petersburg Transport University 20, no. 4 (2023): 820–27. http://dx.doi.org/10.20295/1815-588x-2023-4-820-827.

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Purpose: To analyze a ScopeRail model capable of predicting re-radiated noise and vibration in structures located in close proximity to rail lines. To compare the obtained results with an alternative, widely used model for accuracy assessment and the potential cost reduction of assessing the impact of vibrations on residential areas for new railway lines. Methods: To perform statistical analysis of the obtained data for modeling vibration of different types of ground. To calculate simulation results in order to create a database of vibration characteristics for different ground conditions, tra

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Dapeng, Zhu, Qin Liangkai, and Lin Yundian. "Analytical Study on Dynamic Response of Deep Foundation Pit Support Structure under the Action of Subway Train Vibration Load: A Case Study of Deep Foundation Pit of the New Museum Near Metro Line 2 in Chengdu, China." Shock and Vibration 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/535196.

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Presently, foundation pit support structures are generally regarded as the temporary structures and the impact of vibration loads is often overlooked. As opposed to static and seismic loads, the vibration loads of subway trains are a type of cyclic load with a relatively long duration of action and a definite cycle; it is of great importance for the design of foundation pit support structures to correctly evaluate the impact of subway train vibrations on deep foundation pit and support works. In this paper, a dynamic three-dimensional numerical model is built that considers the vibration load

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Wang, Li, Guoqiang Wang, Xujun Zhai, Zhong Tang, Bangzhui Wang, and Pengcheng Li. "Response Characteristics of Harvester Bolts and the Establishment of the Strongest Response Structure’s Kinetic Model." Agriculture 14, no. 7 (2024): 1174. http://dx.doi.org/10.3390/agriculture14071174.

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The bolts and connections of each working part of a rice combine harvester can suffer from severe instantaneous impacts and alternating loads, and these strong impacts and loads cause instantaneous fracture and fatigue failure of the bolt face and even the loosening, detachment, and fracture of the bolt. The main vibration directions and the most complex vibration parts of the bolts and connections in the main working parts of a combine harvester under time-variable multiload excitation were obtained through the analysis of response signals in terms of time-domain and frequency–domain characte

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Chocholaty, Bettina, Nicolaas Bernardus Roozen, Karl-Alexander Hoppe, Marcus Maeder, and Steffen Marburg. "Vibration and impact sound properties of hybrid steel-timber floor structures." Acta Acustica 8 (2024): 11. http://dx.doi.org/10.1051/aacus/2024001.

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Lightweight floor structures, such as timber or hybrid timber floors, face challenges associated with excessive vibrations and elevated levels of low-frequency impact sound. Especially here, accurate prediction of a floor’s vibration and acoustic behavior is essential. However, typical laboratory testing of building elements is costly and time-consuming. To reduce costs, in this study, adapted simulations are carried out on two types of hybrid steel-timber floor structures to evaluate vibrations and impact sound. The hybrid elements are made of laminated veneer lumber as the top and bottom lay

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Ni, Su Huan, and Qing Guo Chen. "Dynamic Research on Vibration-Impact Crushing System of a Bilateral Single-Mass." Advanced Materials Research 308-310 (August 2011): 1914–17. http://dx.doi.org/10.4028/www.scientific.net/amr.308-310.1914.

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The vibrating roller crusher convert relative vibration generated by two rigid bodies to bring high-frequency impulse on grain layer (or granular) in chamber, which makes grain crush to particle. Based on the science of vibration, dynamics model in vibration-impact crushing system of a bilateral single-mass and vibration differential equations are established. By dynamic analysis, amplitude frequency curve, hysteresis impact curve and energy absorption curve are all founded. The curves on dynamic response are discussed. Under the consideration of their results, displacement, velocity and accel

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Burdzik, Rafał. "Impact and Assessment of Suspension Stiffness on Vibration Propagation into Vehicle." Sensors 23, no. 4 (2023): 1930. http://dx.doi.org/10.3390/s23041930.

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The impact of transport-induced vibrations on people is a particularly important problem. Sudden or intensifying vibration phenomena of a local nature may compromise safety, especially in transport. The paper addresses the results of research on the impact of spring stiffness parameters on the propagation of vibrations in the vehicle structure using simple amplitude and frequency measures. The use of the developed method of selective multi-criteria analysis of frequency bands made it possible to compare the vibrations recorded in the vehicle with a new or worn coil spring. The results of the p

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Domnina, K. L., Yu R. Nikitin, A. V. Repko, and N. A. Gumennikov. "The Concept of Vibration Protection and an Overview of the Global Market of Vibration Protection Materials." Intellekt. Sist. Proizv. 20, no. 2 (2022): 106–13. http://dx.doi.org/10.22213/2410-9304-2022-2-106-113.

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Due to the development of modern technologies, the number of sources initiating vibrations and noises has significantly increased. A variety of techniques are used to eliminate the negative impact of extraneous noise and vibrations. The article presents the concept of vibration protection, the options and mechanism for selecting coatings, and an overview of the global market for vibration-proof materials. The most common methods of vibration protection are vibration isolation and vibration damping, implemented by using materials with appropriate properties. Vibration isolation of vehicles is c

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Huzaifa Azam, William Pao, Muhammad Sohail, and Umair Khan. "Effect of Orientation on Two-phase Slug Flow Induced Vibrations." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 116, no. 2 (2024): 1–12. http://dx.doi.org/10.37934/arfmts.116.2.112.

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Multiphase flow induced vibrations is a serious safety issue in oil and gas industries due to its undesirable vibration. Currently, there is a lack of usable data that could help to predict the magnitude of multiphase flow induced vibration in pipe inclined at various angles. The objective of this paper is to determine the magnitude of vibration in two-phase flow in pipe at inclination angle of 0°, 30°, 45°, 60°, and 90°. Air to water superficial velocity ratio of 1.25 was selected for this purpose because it is the value that causes the flow to change abruptly from slug to churn flow and vice

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Chen, Fa Ben. "Experimental Study on the Effect of Vibration of Pile Foundation Construction." Applied Mechanics and Materials 711 (December 2014): 392–96. http://dx.doi.org/10.4028/www.scientific.net/amm.711.392.

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Impact drill holes into the pile construction technology is widely used in pile foundation construction job, construction vibrating pile thus to bring the impact of the increasingly prominent on the surrounding environment, the impact of this article on the construction site of a pile of drilled hole pile construction vibration effects on the surrounding environment experiment monitored by the monitoring data analysis found that the peak acceleration increases with distance attenuation occurs quickly, on the basis of analysis of pile foundation construction vibration velocity, frequency, and d

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Cai, Harry Ao, Nathan Gara, and Brian Howe. "Tri-axial ground-borne vibration measurements during rail pass-bys." Journal of the Acoustical Society of America 155, no. 3_Supplement (2024): A333. http://dx.doi.org/10.1121/10.0027714.

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Ground-borne vibrations from rail pass-bys, transmitted from train wheels rolling on the rails, have the potential to cause various adverse effects at nearby receptors, such as annoyance and re-radiated noise. To assess the impact of rail pass-bys, surface-level vibration can be characterized in three components: one vertical and two horizontal directions. Prior experience, best-practice guidelines from the Federal Transit Administration Transit Noise and Vibration Impact Assessment Manual, and theory of propagation of Rayleigh surface waves indicate that the vertical component dominates the h

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Feher, Jan, Jozef Cambal, Blazej Pandula, et al. "Research of the Technical Seismicity Due to Blasting Works in Quarries and Their Impact on the Environment and Population." Applied Sciences 11, no. 5 (2021): 2118. http://dx.doi.org/10.3390/app11052118.

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Vibrations caused by blasting works have an impact not only on buildings but also the internal environment of the buildings. If these buildings are situated in the surroundings of quarries, the citizens can perceive these vibrations negatively. By applying an appropriate millisecond timing interval, it is possible to lower the intensity of vibrations to the levels that the citizens will not perceive as negative effects inside the buildings. The limit values for this vibration intensity have not been defined to date. For the protection of the building from the vibrations, normative values of th

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Nita, Piotr. "Dynamic interaction of military aircraft working on an cement concrete airfield pavement." Transportation Overview - Przeglad Komunikacyjny 2020, no. 2 (2020): 37–45. http://dx.doi.org/10.35117/a_eng_20_02_04.

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The publication presents test results and analysis of the impact of military aircraft on an airport pavement made of pre-stressed panels. Three types of aircraft were used in the experiment, i.e. TS 11 ISKRA aircraft, SU 7 BM aircraft and SU-22 M4 aircraft. In the field tests, geophysical methods were used to measure the dynamic properties of the airport pavement structure. Based on the few vibration measurement methods of this type of construction that can be used, the vibration level of the pavement caused by the aircraft operating on that surface was recorded. The tests were carried out for

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Wei, Qing Nan, and Shu Ran Lv. "Numerical Analysis of the Impact of the Stope Blasting Vibration on Tailings Dam Stability Based on GeoStudio." Applied Mechanics and Materials 501-504 (January 2014): 200–206. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.200.

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In this paper, based on the establishment of the finite element calculating model, the influence of the blasting vibration to tailings dams stability was analyzed in accordance with actual stope blasting vibration monitoring data. The laws of the blasting vibrations impact on tailings dam stability was reached by importing different vibration amplitude of vibration wave intensity. When the blasting vibration acceleration remained under 0.333g and vibration velocity remained under 17.005cm/s, the coefficient of the healthy tailings dam stability against sliding has a increasing trend with the i

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Shikar Mammadov, Gunel Karimova, Shikar Mammadov, Gunel Karimova. "EFFECT OF VIBRATION ON CENTRIFUGAL COMPRESSOR." PAHTEI-Procedings of Azerbaijan High Technical Educational Institutions 39, no. 04 (2024): 442–49. http://dx.doi.org/10.36962/pahtei39042024-442.

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Centrifugal compressors play a critical role in various industrial applications, including oil and gas, petrochemical, and aerospace industries. These machines are subjected to various operating conditions, including mechanical vibrations, which can significantly affect their performance, reliability, and longevity. Centrifugal compressors often face challenges related to mechanical vibrations, which can compromise performance and reliability. This article provides a comprehensive review of the effects of vibration on centrifugal compressors, covering the mechanisms of vibration generation, it

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Pelmear, P. L., and M. Wills. "Impact Vibration and Hand-Arm Vibration Syndrome." Journal of Occupational & Environmental Medicine 39, no. 11 (1997): 1092–96. http://dx.doi.org/10.1097/00043764-199711000-00009.

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Cvetanovic, Boban, Dragan Cvetković, Momir Praščević, Miljan Cvetković, and Milan Pavlović. "An analysis of the impact of agricultural tractor seat cushion materials to the level of exposure to vibration." Journal of Low Frequency Noise, Vibration and Active Control 36, no. 2 (2017): 116–23. http://dx.doi.org/10.1177/0263092317711983.

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During everyday operations with tractors, drivers are exposed to harmful effects of various factors. In addition to unfavourable temperature and humidity, dust and noise, one of the factors harmful to driver’s health is vibrations. They come from the tractor engine and from the roughness of the ground and are transferred to the cab and through the seat to the body of the driver. In case of high level magnitude vibrations and a long period of exposure to them, many health problems occur. The harmful effect of the vibrations is especially obvious in older models of tractors. High intensities of

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