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Journal articles on the topic 'Free Vibration Analysis'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Johansson, Prof Clara, and Prof Ingrid Dahlberg. "A COMPARATIVE ANALYSIS OF FREE VIBRATION IN STIFFENED VERSUS UNSTIFFENED PLATES." International Journal of Research in Engineering 3, no. 4 (2023): 7–11. https://doi.org/10.55640/ijre-03-04-02.

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This study presents a comprehensive investigation into the free vibration characteristics of stiffened plate structures, which are commonly used in aerospace, marine, and civil engineering applications. By employing analytical and finite element methods, the influence of various stiffener configurations, boundary conditions, and material properties on the natural frequencies and mode shapes of the plate structures was evaluated. The results demonstrate that both the orientation and geometry of stiffeners significantly affect the dynamic behavior, offering potential for tailored vibration perfo

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2

Sasmita, Sahoo, and Kumar Sahu Pradip. "VIBRATION ANALYSIS OF COMPOSITE PLATE ON FABRICATION PROCESS." Research and Reviews on Experimental and Applied Mechanics 5, no. 2 (2022): 1–17. https://doi.org/10.5281/zenodo.7064669.

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<em>During their working lives, the majority of structural components are often subjected to dynamic loadings. These parts may frequently need to operate in harsh dynamic environments where resonant vibrations do the most harm. Stress and frequency are used to estimate a material's susceptibility to vibration-induced material fracture. For the structure's safety, the vibration's maximum amplitude must not exceed a certain threshold. As a result, vibration analysis has become crucial when designing a structure in order to predict its response and take the appropriate action to regul

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3

Morozov, N. A., G. I. Grebenyuk, V. I. Maksak, and A. F. Gavrilov. "Free vibrations of rectangular plates." Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture 25, no. 3 (2023): 96–111. http://dx.doi.org/10.31675/1607-1859-2023-25-3-96-111.

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The paper investigates free vibrations of rectangular metal plates. The finite element method and analytical calculation are particularly used to determine the vibration frequency. The analytical calculation is based on the equation of motion of a thin rectangular plate. The asymptotic method is applied to determine the dynamic edge effect. As a result, the free vibration frequency is determined for the rectangular metal plate. The finite element analysis is performed in Lira and SolidWorks software packages. For this, a solid plate model with sensors is created to measure the free vibration f

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4

M.L., Pavan Kishore. "Numerical Study Free Vibration Analysis of Thin Rectangular Plates." Journal of Advanced Research in Dynamical and Control Systems 12, SP8 (2020): 351–60. http://dx.doi.org/10.5373/jardcs/v12sp8/20202533.

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5

N I, Narayanan, and Aravind Sarma V. "Free Vibration Analysis of Functionally Graded Plates with Circular Cutouts." International Journal of Science and Research (IJSR) 10, no. 3 (2021): 1174–78. https://doi.org/10.21275/sr21320160535.

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6

Verenkar, Saeesh, I. Sridhar, and P. S. Shivakumar Gouda. "Numerical Investigations on Free Vibration Analysis of Delaminated Composite Plate." Indian Journal Of Science And Technology 16, no. 42 (2023): 3714–20. http://dx.doi.org/10.17485/ijst/v16i42.1866.

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7

Dai, Pengyi, Shiyue Yang, Shuchen Ye, and Zhengheng Tang. "Dynamic Analysis and Vibrations Research on Multi-Degree of Freedom Shear Structures." Journal of Physics: Conference Series 2206, no. 1 (2022): 012008. http://dx.doi.org/10.1088/1742-6596/2206/1/012008.

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Abstract Vibration is everywhere in of our daily life. This paper studies the effect of rectangular pulse and free vibration on multi-degree of freedom systems. An undamped three-floor shear frame structure subjected to rectangular pulse and a damping three-floor shear building considered free vibration is investigated with respect to natural frequencies, mode shapes, and displacements of each floor level. This paper assumes the three-story shear building structure discussed has orthogonal damping, and the fundamental frequency will not change over time, which means that the mode shape of the

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8

Gao, M., S. P. Tian, R. He, Y. Wang, and Q. S. Chen. "Numerical Analysis on the Ground Vibration Isolation of Duxseal." Advances in Civil Engineering 2019 (December 24, 2019): 1–10. http://dx.doi.org/10.1155/2019/6507465.

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A new kind of vibration screening material, Duxseal, with a high damping ratio is proposed to be used as an active vibration barrier in the free field. To investigate the influence of width, thickness, and embedded depth of using Duxseal on vibration reduction, numerical studies are performed using a three-dimensional (3D) semianalytical boundary element method (BEM) combined with a thin-layer method (TLM). The isolation effectiveness of Duxseal in ground vibration is also compared with the traditional wave impeding block (WIB). The numerical results show that Duxseal performed exceedingly wel

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9

Memory, T. J., D. P. Thambiratnam, and G. H. Brameld. "Free vibration analysis of bridges." Engineering Structures 17, no. 10 (1995): 705–13. http://dx.doi.org/10.1016/0141-0296(95)00037-8.

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10

Xia, Jun, Z. Shen, and Bin Chen. "Dynamic Analysis of Steel-Concrete Composite Frames with Partial Interaction." Advanced Materials Research 594-597 (November 2012): 904–7. http://dx.doi.org/10.4028/www.scientific.net/amr.594-597.904.

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The finite element formulations of steel-concrete composite (SCC) beams considering interlayer slip with end shear restraint were established. Free vibrations of SCC beams and frame structures under different slip boundary conditions were examined. The influences of the shear connection stiffness and the slip boundary condition on dynamic characteristics were analyzed. It is shown that the low order 8-DOF element may exhibit slip locking phenomenon in free vibration analysis for very stiff connection. The free vibration frequencies of composite beams and frame structures increase with the shea

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11

Guan, Yanfang, Xiangxin Meng, Yansheng Liu, Mingyang Bai, and Fengqian Xu. "Modeling, Vibration Analysis and Fabrication of Micropumps Based on Piezoelectric Transducers." International Journal of Acoustics and Vibration 25, no. 3 (2020): 383–91. http://dx.doi.org/10.20855/ijav.2020.25.31670.

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The parametric and vibrational characteristics of PZTs (Piezoelectric Transducers) with different diameters before and after coupling are discussed by finite element analysis. It is shown that the vibration stability of the piezoelectric transducer decreases with increasing driving frequency. The PZT's variation of maximum displacement with frequency shows the same trend for different driving conditions according to vibration measurement under conditions of both free and forced vibration (before and after sealing with the pump body). The maximum displacement under forced vibration is less than

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12

Sengsri, Pasakorn, and Sakdirat Kaewunruen. "Modal analysis of Free Vibration of an Extremely Lightweight Panel Model for Bridge Bearing Applications." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 265, no. 4 (2023): 3089–93. http://dx.doi.org/10.3397/in_2022_0434.

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This paper reports a novel extremely lightweight panel model under free vibration. This novel model is likely to be used for railway/highway bridge bearing applications due to its high performance to weight ratio, which offers superior mechanical properties, such as sound and vibration attenuation, rigidity, and energy absorption. The structure of the model is based on triply periodic minimal surfaces (TPMS) conceived by observing the scales of butterflies' wings. The vibration behaviours of this novel panel model used as bridge bearings are not well-known and have never been fully investigate

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13

VLADIMIRESCU, Tudor, Ion FUIOREA, and Tudor VLADIMIRESCU-jr. "Flutter Analysis Based on the New Numerical Model IAR-99 HAWK Empty Equipped Configuration Aircraft." INCAS BULLETIN 16, no. 4 (2024): 117–29. https://doi.org/10.13111/2066-8201.2024.16.4.11.

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After creating a new Finite Elements Model (FEM) of the aircraft IAR-99 HAWK using special elements, the team decided to validate the results by performing a free-free vibrations analysis on this model. In this presentation we have described the finite elements used and their peculiarities, the finite elements model obtained for the aircraft IAR-99 HAWK and the results of the free-free vibrations analysis obtained in the empty equipped configuration. The results of the theoretical free-free vibrations obtained for the IAR-99 HAWK in the empty equipped configuration are presented and compared t

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14

CEKUS, DAWID, and BOGDAN POSIADALA. "VIBRATION MODEL AND ANALYSIS OF THREE-MEMBER TELESCOPIC BOOM WITH HYDRAULIC CYLINDER FOR ITS RADIUS CHANGE." International Journal of Bifurcation and Chaos 21, no. 10 (2011): 2883–92. http://dx.doi.org/10.1142/s0218127411030404.

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In this paper, the free vibration problem of a system consisting of a three-member type telescopic boom of the laboratory crane, the hydraulic cylinder of crane radius change and the elastic support system has been presented. The model has been formulated in order to represent the vibrations in the lifting plane of the laboratory crane. The transverse vibrations of the boom, longitudinal and transverse vibrations of the hydraulic cylinder have been considered in the coupled model of the system taking into account the elasticity of the support system. In the computational model, the analyzed sy

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15

Sellami, Takwa, Sana Jelassi, Hanen Berriri, Abdel Moumen Darcherif, and Med Faouzi Mimouni. "Finite volume free vibration analysis of a new aerodynamic styling wind turbine." Wind Engineering 42, no. 5 (2018): 397–410. http://dx.doi.org/10.1177/0309524x18780403.

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Due to the short life cycles of large-scale wind turbines and difficulties in getting permission for farms installations, micro-scale turbines have become interesting sustainable solutions to product energy. However, micro-size turbines have to be able to generate balanced powers while ensuring maximum life services under unpredictable environment conditions. Hence, designers must mainly investigate the dynamic characteristics of turbine tower–foundation systems in order to protect the structural security and stability of the system under vibration constraints. In this framework, this article

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16

Gumus, Emrah, and Atila Ertas. "Analysis of Free Pendulum Vibration Absorber Using Flexible Multi-Body Dynamics." Shock and Vibration 2016 (2016): 1–19. http://dx.doi.org/10.1155/2016/3253178.

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Structures which are commonly used in our infrastructures are becoming lighter with progress in material science. These structures due to their light weight and low stiffness have shown potential problem of wind-induced vibrations, a direct outcome of which is fatigue failure. In particular, if the structure is long and flexible, failure by fatigue will be inevitable if not designed properly. The main objective of this paper is to perform theoretical analysis for a novel free pendulum device as a passive vibration absorber. In this paper, the beam-tip mass-free pendulum structure is treated as

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17

Xuebin, Li, and Chen Yaju. "Free Vibration Analysis of Orthotropic Circular Cylindrical Shell Under External Hydrostatic Pressure." Journal of Ship Research 46, no. 03 (2002): 201–7. http://dx.doi.org/10.5957/jsr.2002.46.3.201.

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An analysis is presented for the free vibration of an orthotropic circular cylindrical shell subjected to hydrostatic pressure. Based on Flügge shell theory, the equations of free vibrations of an orthotropic circular cylindrical shell under hydrostatic pressure are obtained. For shear diaphragms at both ends, the resulting characteristic equations about pressure and frequency are given. These two parameters are calculated exactly. The effect of the shell's parameters (L/R, h/R) and material properties on the free vibration characteristics are studied in detail. Differences between Love-Timosh

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18

Navaneeth, I. M., Suhas Poojary, A. Chandrashekar, Abdul Razak, Nasim Hasan, and Abdulaziz Ibrahim Almohana. "Damped Free Vibration Analysis of Woven Glass Fiber-Reinforced Epoxy Composite Laminates." Advances in Materials Science and Engineering 2022 (July 7, 2022): 1–13. http://dx.doi.org/10.1155/2022/6980996.

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Woven glass fiber reinforced with epoxy matrix composites are manufactured considering different glass/epoxy proportions and vibration analyses of the laminated composite plates subjected to free vibrations have been examined. The tensile and flexural strength of composites were evaluated by following ASTM standards. Free vibration of the composite specimen characteristics is studied using a Fast Fourier Transform analyzer, accelerometer using impact hammer excitation. The fast response functions are studied in order to clearly understand the vibration characteristics of the specimens. The exp

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19

YAMADA, Keisuke. "Free vibration analysis of vibration systems with hysteretic damping." Proceedings of the Dynamics & Design Conference 2020 (August 25, 2020): 257. http://dx.doi.org/10.1299/jsmedmc.2020.257.

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20

KIMURA, Hiroyuki. "Free vibration analysis of a string with vibration suppressor." Transactions of the JSME (in Japanese) 80, no. 812 (2014): TRANS0059. http://dx.doi.org/10.1299/transjsme.2014trans0059.

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21

Ma, Jingmin, and Wenli Yao. "Stability Analysis of Free Vibration of Gun Drill Rod." Materials 18, no. 6 (2025): 1241. https://doi.org/10.3390/ma18061241.

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Gun drills are widely utilized for deep hole machining due to their high aspect ratio, low stability, and susceptibility to vibrations, which can adversely affect machining accuracy and efficiency. During the machining process, cutting fluid must be injected through the drill rod to facilitate chip removal, resulting in a cross-sectional design with circumferential asymmetry. This asymmetry introduces more complex dynamic characteristics compared to conventional circular cross-section rotors. This study develops a Rayleigh rotor model of the gun drill rod and employs the Galerkin method to eva

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22

Aghazadeh, Reza. "Free Vibration Analysis of Shear Deformable Small-Scale Tubes." Academic Perspective Procedia 3, no. 1 (2020): 418–27. http://dx.doi.org/10.33793/acperpro.03.01.86.

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This study presents an approach for investigating free vibration problem of small-scale tubes based on modified couple stress theory in conjunction with higher order shear deformation tube model. The size effect is captured through utilization of a length scale parameter involved in modified couple stress theory. A newly developed refined tube model is employed to satisfy friction-free conditions on inner and outer surfaces of micro-tubes. Hamilton&amp;rsquo;s principle is used as a variational technique for derivation of governing system of equations. For axial vibrations, an analytical p

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23

Rahmani, Omid, and Solmaz Ghaffari. "Frequency Analysis of Nano Sandwich Structure with Nonlocal Effect." Advanced Materials Research 829 (November 2013): 231–35. http://dx.doi.org/10.4028/www.scientific.net/amr.829.231.

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This study deals with the frequency analysis of Nano-sandwich-structure with nonlocal effect. The model takes into account the flexibility of the sandwich core while the faces are treat as beams. The different stiffness of core will impart different vibration characteristic of the structure. To examine free vibrations of Nano-sandwich-structure, nonlocal elasticity theory has been applied. In this paper an investigation is carried out to understand the small-scale effects in the free vibration. The boundary conditions of simply-supported conditions are described here. Further the effects of sc

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24

Kumar, S. M., V. A. Nagarajan, and S. Iyyappan. "Modal and Spectrum Analysis of Vibration-Free Transportation System Using Finite Element Analysis." Journal of Scientific Research 16, no. 3 (2024): 737–43. http://dx.doi.org/10.3329/jsr.v16i3.71919.

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The transportation trailer system comprises numerous delicate components that require careful handling throughout transit. During transportation, the system is subjected to vibrations and shock loads resulting from road conditions, trailer acceleration, and deceleration. If these loads are transferred to the system, it could adversely affect many of its elements, particularly at resonance. To mitigate such vibration-induced stress on the system, a vibration isolation system has been designed and analyzed. The transportation system is modelled and analyzed using the finite element method. The P

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25

Vinoth Kumar, K., T. G. Loganathan, A. Bharath, B. Shyam Sundar, and K. K. Abishek. "Comparative structural vibration analysis of machinery and GFRP with Al7075." MATEC Web of Conferences 144 (2018): 01009. http://dx.doi.org/10.1051/matecconf/201814401009.

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The current scenario of the industries is that the major losses in efficiency of a machine are due to vibration and friction. To reduce the detrimental effects of vibration we need to decrease the frequency and amplitude of vibration or completely eliminate vibration. To do that one must quantify vibration that already occurs in machinery and structural components. Which is the aim of this paper. The intention of the paper is to obtain and characterize the vibration signature of equipment used in a company and composite material. We have designed a setup to vibrational properties composites, v

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26

Li, Ji-Liang, and Jian-Kang Chen. "Free Vibration Analysis of Battened Beams." International Journal of Structural Stability and Dynamics 14, no. 07 (2014): 1450029. http://dx.doi.org/10.1142/s0219455414500291.

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This paper presents an analytical solution for the free vibration analysis of simply supported battened beams/columns. The free vibration frequencies are derived using the classical Hamilton's principle. Unlike most of the existing studies on this topic, the present approach considers not only the transverse shear deformation effect but also the discrete effect of battens on the dynamic characteristics of the beams. The present analytical solution is validated using the data obtained from the finite element analysis. The results show that the shear and discrete effects of battens have signific

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27

Rezaei DA, Hojjat, Mahmoud Kadkhodaei, and Hassan Nahvi. "Analysis of nonlinear free vibration and damping of a clamped–clamped beam with embedded prestrained shape memory alloy wires." Journal of Intelligent Material Systems and Structures 23, no. 10 (2012): 1107–17. http://dx.doi.org/10.1177/1045389x12441509.

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Nonlinear free vibration and damping of a clamped–clamped composite beam containing shape memory alloy wires with different prestrains embedded in the midsurface are investigated. The constitutive relations of shape memory alloy are considered in the large deflection response of the elastic Euler–Bernoulli beam, and Hamilton’s principle is used to derive differential equation of the beam motion with extensible midplane. Considering midplane stretching due to tension in the shape memory alloy wires provides an ability to model damping in a nonlinear analysis although there is no distinct dampin

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28

Hodges, Dewey H., Ali R. Atilgan, Mark V. Fulton, and Lawrence W. Rehfield. "Free‐Vibration Analysis of Composite Beams." Journal of the American Helicopter Society 36, no. 3 (1991): 36–47. http://dx.doi.org/10.4050/jahs.36.36.

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29

Baušys, R. "ACCURACY ESTIMATES IN FREE VIBRATION ANALYSIS." Statyba 1, no. 4 (1995): 5–19. http://dx.doi.org/10.1080/13921525.1995.10531529.

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30

Hayashikawa, Toshiro, and Noboru Watanabe. "Free Vibration Analysis of Continuous Beams." Journal of Engineering Mechanics 111, no. 5 (1985): 639–52. http://dx.doi.org/10.1061/(asce)0733-9399(1985)111:5(639).

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31

Ranjbaran, Abdolrasoul. "Free-Vibration Analysis of Stiffened Frames." Journal of Engineering Mechanics 140, no. 9 (2014): 04014071. http://dx.doi.org/10.1061/(asce)em.1943-7889.0000783.

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32

Afshari, Payman, and G. E. O. Widera. "Free Vibration Analysis of Composite Plates." Journal of Pressure Vessel Technology 122, no. 3 (2000): 390–98. http://dx.doi.org/10.1115/1.556198.

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A series of plate elements, based on the modified complementary energy principal, are developed to study the free undamped vibration response of laminated composite plates. The Mindlin thin plate theory is selected to govern the general characteristics and behavior of these plate elements. A series of in-plane strain functions are assumed from which the corresponding in-plane strains and corresponding stresses for each lamina are determined. The transverse stresses are then computed by satisfying the equations of the equilibrium. Eight-noded isoparametric elements are utilized to describe the

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33

Sahoo, Prakash Ranjan, and Manoranjan Barik. "Free Vibration Analysis of Stiffened Plates." Journal of Vibration Engineering & Technologies 8, no. 6 (2020): 869–82. http://dx.doi.org/10.1007/s42417-020-00196-4.

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34

Manohar, C. S., and R. N. Iyengar. "Free Vibration Analysis Of Stochastic Strings." Journal of Sound and Vibration 176, no. 1 (1994): 35–48. http://dx.doi.org/10.1006/jsvi.1994.1357.

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35

Qi, Dongliang, Dongdong Wang, Like Deng, Xiaolan Xu, and Cheng-Tang Wu. "Reproducing kernel mesh-free collocation analysis of structural vibrations." Engineering Computations 36, no. 3 (2019): 734–64. http://dx.doi.org/10.1108/ec-10-2018-0439.

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PurposeAlthough high-order smooth reproducing kernel mesh-free approximation enables the analysis of structural vibrations in an efficient collocation formulation, there is still a lack of systematic theoretical accuracy assessment for such approach. The purpose of this paper is to present a detailed accuracy analysis for the reproducing kernel mesh-free collocation method regarding structural vibrations.Design/methodology/approachBoth second-order problems such as one-dimensional (1D) rod and two-dimensional (2D) membrane and fourth-order problems such as Euler–Bernoulli beam and Kirchhoff pl

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36

Zaman, Izzuddin, Mohd Rajim Abdurasad, Bukhari Manshoor, Amir Khalid, and M. S. M. Sani. "Study on Dynamic Behaviour of Grass Trimmer Using Finite Element Analysis." Applied Mechanics and Materials 786 (August 2015): 383–87. http://dx.doi.org/10.4028/www.scientific.net/amm.786.383.

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Nowadays, research on dynamic behavior of structural components is becoming one of the important parts in the design process for any mechanical system. In order to determine the dynamic behavior of a vibrating structure, measurements of the dynamic properties of structure are essential. Free vibration analysis is one of the approaches that apply the finite element method in determining the structure modes of vibration. Each mode is defined by its natural frequency and mode shape. In this paper, the free vibration analysis of grass trimmer was performed using commercial finite element software,

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37

KILIKEVIČIUS, Artūras, Darius BAČINSKAS, Mindaugas JUREVIČIUS, et al. "FIELD TESTING AND DYNAMIC ANALYSIS OF OLD CONTINUOUS TRUSS STEEL BRIDGE." Baltic Journal of Road and Bridge Engineering 13, no. 1 (2018): 54–66. http://dx.doi.org/10.3846/bjrbe.2018.394.

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Paper presents dynamic field test and analysis results of a three span railway steel continuous truss bridge over river Neris in Jonava. Bridge was originally constructed in 1914. In the period of the World War II and afterwards the bridge was many time destroyed by German and Soviet armies. In 1948 the new railway bridge was constructed. Object of the present paper is to evaluate dynamic behaviour of the railway bridge after 67 years in service. Experimental dynamic analysis was divided into resonance-vibration, forced-vibration and free vibration studies. Resonance-vibrations of the bridge w

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Lim, C. W., and Zhenyu Chen. "A New Static Analysis Approach for Free Vibration of Beams." International Journal of Applied Mechanics 10, no. 01 (2018): 1850004. http://dx.doi.org/10.1142/s1758825118500047.

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This study deals with a new method for the free vibration analysis of beams under different boundary conditions. We show that it is possible to apply a static approach for solving free vibration systems, i.e., we obtain natural frequencies for free vibration of beams by analyzing static beam bending problems. Specifically, the basic governing equation for beams with harmonic loadings and resting on an elastic foundation is solved and the solutions are used directly to yield the beam free vibration solutions. In the free vibration analysis, the natural frequency can be a real number or an imagi

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Chen, Chuan, and Yuhu Yang. "Structural Characteristics of Rotate Vector Reducer Free Vibration." Shock and Vibration 2017 (2017): 1–14. http://dx.doi.org/10.1155/2017/4214370.

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For RV reducer widely used in robots, vibration significantly affects its performance. A lumped parameter model is developed to investigate free vibration characteristics without and with gyroscopic effects. The dynamic model considers key factors affecting vibration such as involute and cycloid gear mesh stiffness, crankshaft bending stiffness, and bearing stiffness. For both nongyroscopic and gyroscopic systems, free vibrations are examined and compared with each other. Results reveal the specific structure of vibration modes for both systems, which results from symmetry structure of RV redu

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Zhipeng, Wang, Liu Wei, Yuan Yunbo, Shuai Zhijun, Guo Yibin, and Wang Donghua. "Free Vibration Analysis of Rings via Wave Approach." Shock and Vibration 2018 (2018): 1–14. http://dx.doi.org/10.1155/2018/6181204.

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Free vibration of rings is presented via wave approach theoretically. Firstly, based on the solutions of out-of-plane vibration, propagation, reflection, and coordination matrices are derived for the case of a fixed boundary at inner surface and a free boundary at outer surface. Then, assembling these matrices, characteristic equation of natural frequency is obtained. Wave approach is employed to study the free vibration of these ring structures. Natural frequencies calculated by wave approach are compared with those obtained by classical method and Finite Element Method (FEM). Afterwards natu

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Rieckmann, Marianne, James L. Park, John Codrington, and Ben Cazzolato. "Modelling the three-dimensional vibration of composite archery arrows under free–free boundary conditions." Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology 226, no. 2 (2012): 114–22. http://dx.doi.org/10.1177/1754337112442273.

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Archery performance has been shown to be dependent on the resonance frequencies and operational deflection shape of the arrows. This vibrational behaviour is influenced by the design and material of the arrow and the presence of damage in the arrow structure. In recent years arrow design has progressed to use lightweight and stiff composite materials. This paper investigates the vibration of composite archery arrows through a finite difference model based on Euler–Bernoulli theory, and a three-dimensional finite element modal analysis. Results from the numerical simulations are compared to exp

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42

Grigorenko, A., M. Borysenko, and O. Boychuk. "Numerical analysis of free vibrations of open cylindrical shells with elliptical cross section." Bulletin of Taras Shevchenko National University of Kyiv. Series: Physics and Mathematics, no. 2 (2019): 52–59. http://dx.doi.org/10.17721/1812-5409.2019/2.5.

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The natural frequencies and the corresponding vibration modes of open cylindrical shells with an elliptical cross-section and variable thickness are analyzed. Various opening angle of the shell along both the minor and major axes are allowed and various boundary conditions are considered. The numerical solutions are obtained using the finite element package FEMAP with the NASTRAN solver. A number of lowfrequency vibrations are investigated in terms of their dependence on the opening angle along major and minor axes of the shell. The vibration forms for the first ten frequencies with different

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43

Koleva, M., and K. Mladenov. "Measurement and Analysis of Railway Noise and Vibration." Noise & Vibration Worldwide 31, no. 5 (2000): 8–12. http://dx.doi.org/10.1260/0957456001497580.

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The acoustic environment, as well as the length and speed of the train, determine noise and vibration levels. The average intensity of the noise (assessing by SEL) varies from 83.9 to 104.1 dB/A: the highest intensity accompanies the passing of express (average 95.32 dB/A); the lowest intensity is measured during the passing of EMU (average 89.24 dB/A). Vibrations of the highest intensity are measured during the passing through free fields (0.750 mm.sec−1). Regardless of the bridge type, the level of vibrations varies between 0.032 – 0.067 mm.sec−1.

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Van Doan, Do, and Lech Murawski. "Calculation Reliability of Natural Vibrations of Ship Hull and Superstructure." Journal of KONES 26, no. 1 (2019): 31–38. http://dx.doi.org/10.2478/kones-2019-0004.

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Abstract The ship hull vibration has a great impact on the performance, safety of the devices, structures, and the sailor's comfort when working on the ship. With increases in ship sizes and speeds, shipboard vibration becomes a significant concern in the design and construction of ships. Therefore, designing a ship without any excessive vibration is an important issue and should be studied through analysis right in the design phase. To ensure minimum vibration in a proposed new design; avoid damage to structures, machinery or equipment (mechanically suitable); meeting the requirements of the

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KIMURA, Hiroyuki, Tomoki IIJIMA, Shigenori MATSUO, and Yoshiaki FUJITA. "101 Vibration Analysis of Elevator Rope : Free Vibration and Forced Vibration of Rope." Proceedings of the Elevator, Escalator and Amusement Rides Conference 2006 (2007): 11–14. http://dx.doi.org/10.1299/jsmeearc.2006.11.

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Khorshidi, Siros, Samad Chakouvari, Hassan Askari, and Livija Cveticanin. "Free Vibrations of Flexoelectric FGM Conical Nanoshells with Piezoelectric Layers: Modeling and Analysis." Energies 15, no. 9 (2022): 2973. http://dx.doi.org/10.3390/en15092973.

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Flexoelectric and piezoelectric effects have attracted the attention of researchers, owing to their applications in sensing systems and actuators. In this paper, the vibration of functionally graded material (FGM) conical nanoshell is studied, taking into account both piezoelectricity and flexoelectricity. The nanoshell has a sandwich-type structure with a FGM core and two layers of piezoelectric materials on its top and bottom. With the combination of the first order shear deformation and Eringen’s nonlocal theories, the vibration equation of the nanoshell is developed. In order to study the

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Kessler, C., and J. Kim. "Vibration Analysis of Rotors Utilizing Implicit Directional Information of Complex Variable Descriptions." Journal of Vibration and Acoustics 124, no. 3 (2002): 340–49. http://dx.doi.org/10.1115/1.1467649.

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A complex variable description of planar motion incorporates directivity as inherent information which is therefore very convenient in vibration analysis of rotors. This paper proposes to use the directional information explicitly when the equation of motion of a rotor is formulated in complex variables. It is shown that the free vibration solution to the equation of motion formulated as such can be defined as the directional natural mode because it describes not only the shape and frequency but also the direction of the free vibration response. The directional frequency response functions (dF

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Qin, Li Ping, and Yuan Jun Yan. "Vibration Analysis of Linear Magnetostrictive Actuator." Advanced Materials Research 243-249 (May 2011): 6036–39. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.6036.

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Giant magnetostrictive materials, such as Terfenol-D, have been used to make a principal driving element in actuator, owing to its fine characteristic that is large strain, high energy density, small hysteretic loss and less performance degradation in room temperature. With the discovery and refining of Terfenol-D, the magnetostrictive actuator has gotten great development for recent twenty years. The free vibration and forced vibratin of linear magnetostrictive actuator is analyzed. The initial state of rod is at rest. The computational results show that the displacement response is synchrono

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Tabarrok, B., and Liyong Tong. "Dualities in Free Vibration of Minimum Surface Membranes." Journal of Applied Mechanics 60, no. 4 (1993): 1020–26. http://dx.doi.org/10.1115/1.2900969.

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For the linear free vibration of minimum surface membranes, the governing equations and the associated variational functional are derived. Using the basic geometrical characteristics of any two minimum surface membranes, the analysis brings to light the existence of geometrically different surface membranes with identical surface areas, natural frequencies, and vibrating modes.

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Hussain, Muzamal, and Muhammad Nawaz Naeem. "Vibration analysis of single-walled carbon nanotubes using wave propagation approach." Mechanical Sciences 8, no. 1 (2017): 155–64. http://dx.doi.org/10.5194/ms-8-155-2017.

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Abstract. In this paper, influence of boundary conditions on free vibrations of single- walled carbon nanotubes (SWCNTs) is examined. The Flügge's shell dynamical equations are utilized for governing vibrations for carbon nanotubes. The wave propagation approach (WPA) is engaged to determine vibration frequency equation in standard eigenvalue form. The axial modal dependence is measured by the complex exponential functions implicating the axial modal numbers. These numbers are associated with boundary conditions specified at edges of a carbon nanotube. Computer programming is performed to obta

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