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Journal articles on the topic 'Modal analysis'

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1

Yadav, Shrikant K., Dr S. B. Wadkar Dr. S. B. Wadkar, and S. J. Patil S. J. Patil. "Modal Analysis of Compressor Crankshaft." International Journal of Scientific Research 2, no. 7 (2012): 155–58. http://dx.doi.org/10.15373/22778179/july2013/53.

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2

NAGAMATSU, Akio. "Modal Analysis." Journal of the Society of Mechanical Engineers 90, no. 823 (1987): 710–11. http://dx.doi.org/10.1299/jsmemag.90.823_710.

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3

Viswanath., K. Allamraju *. "MODAL ANALYSIS OF QUARTER CAR MODEL SUSPENSION SYSTEM." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 7 (2016): 1216–24. https://doi.org/10.5281/zenodo.58649.

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Suspension system is very important for comfort driving and travelling of the passengers. Therefore, this study provides a numerical tool for modeling and analyzing of a two degree of freedom quarter car model suspension system. Modal analysis places a vital role in designing the suspension system. In this paper presented the modal analysis of quarter car model suspension system by considering the undamped and damped factors.  The modal and vertical equations of motions describing the suspension system were then solved theoretically for damping cases. The program was used successfully to
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4

Bakhtiyarovna, Sadikova Makhbuba. "COMPARATIVE ANALYSIS OF MODAL VERBS IN ENGLISH AND UZBEK." Current Research Journal of Pedagogics 5, no. 10 (2024): 203–6. http://dx.doi.org/10.37547/pedagogics-crjp-05-10-35.

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In this article, the use of modal verbs in Uzbek and English is analyzed on the basis of their presentation in school textbooks. Important aspects of modal verbs in two languages are compared and discussed with exercises and examples based on the texts given in the textbooks. Also, the influence of modal verbs on the meaning of the sentence and the specific characteristics of modal verbs are explained based on examples. Analysis, comparison, comparison, proof methods were used in the work.
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5

Aenlle, M. L., and R. Brincker. "Modal scaling in operational modal analysis using a finite element model." International Journal of Mechanical Sciences 76 (November 2013): 86–101. http://dx.doi.org/10.1016/j.ijmecsci.2013.09.003.

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6

YOKOTA, Kazuya, Satoshi ISHIKAWA, Kosuke TAKEZAKI, Yosuke KOBA, and Shinya KIJIMOTO. "Development of speech production analysis model using modal analysis." Proceedings of the Dynamics & Design Conference 2020 (August 25, 2020): 130. http://dx.doi.org/10.1299/jsmedmc.2020.130.

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7

Cai, Yun Peng, Ji Li, Ming Hui Ji, and Xiang Hua Lin. "Gearcase’s Modal Analysis." Advanced Materials Research 694-697 (May 2013): 389–92. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.389.

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Using PROE software build the model of gearcase, and guide into ansys software for modal analysis in free state. It can get inherent frequency, here only take the ten order frequency, then calculate the pressure that lid applied, add to the role of theshell surface, using ansys for modal analysis to calculate the inherent frequency. When gearcase in the working, bearing and frame will constrain it. Considering this, on this condition, continue analyse the inherent frequency of gearcase, work out the results. Finally, compare these and analyse results, we can know that external conditions have
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8

Heinkele, Christophe, and Claude‐Henri Lamarque. "Modal probabilistic analysis." Journal of the Acoustical Society of America 123, no. 5 (2008): 3153. http://dx.doi.org/10.1121/1.2933174.

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9

Totaro, N., and J. L. Guyader. "MODal ENergy analysis." Journal of Sound and Vibration 332, no. 16 (2013): 3735–49. http://dx.doi.org/10.1016/j.jsv.2013.02.022.

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10

ZHENG, Min, Fan SHEN, Dong-feng SHI, and Huai-hai CHEN. "Modal Analysis Using Operating Modal Identification Method." Chinese Journal of Aeronautics 17, no. 4 (2004): 215–19. http://dx.doi.org/10.1016/s1000-9361(11)60239-2.

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11

Santarsiero, Massimo, Rosario Martínez-Herrero, Gemma Piquero, Juan Carlos González de Sande, and Franco Gori. "Modal Analysis of Pseudo-Schell Model Sources." Photonics 8, no. 10 (2021): 449. http://dx.doi.org/10.3390/photonics8100449.

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All pseudo-Schell model sources have been shown to possess the same continuous set of circularly symmetric modes, all of them presenting a conical wavefront. For keeping energy at a finite level, the mode amplitude along the radial coordinate is modulated by a decreasing exponential function. A peculiar property of such modes is that they exist in the Laplace transform’s realm. After a brief discussion of the near-zone, we pass to the far-zone, where the field can be evaluated in closed form. The corresponding features of the intensity distribution are discussed.
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12

Vu, V. H., M. Thomas, A. A. Lakis, and L. Marcouiller. "Operational modal analysis by updating autoregressive model." Mechanical Systems and Signal Processing 25, no. 3 (2011): 1028–44. http://dx.doi.org/10.1016/j.ymssp.2010.08.014.

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13

Jansson, Erik V., and Nils‐Erik Molin. "Optical modal analysis compared to modal analysis with digital electronic equipment." Journal of the Acoustical Society of America 84, S1 (1988): S136. http://dx.doi.org/10.1121/1.2025794.

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14

Hadianfard, Mohammad Ali, and Soroosh Kamali. "Analysis of Modal Frequencies Estimated from Frequency Domain Decomposition Method." International Journal of Engineering and Technology 12, no. 3 (2020): 41–47. http://dx.doi.org/10.7763/ijet.2020.v12.1182.

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Frequency Domain Decomposition (FDD) is an operational modal analysis method by which the dynamic parameters of structures are obtained using response signals recorded on several locations of structures. In recent years, many researchers have employed the method to estimate the modal parameters of several Multi-Degree-of-Freedom (MDOF) mechanical and civil systems. The accuracy of the results depends on recording and signal processing parameters such as sampling frequency, windowing, filtering etc. As a result, investigation on the influence of these parameters on the accuracy of the estimates
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15

Mardaev, S. I. "Negative modal schemes." Algebra and Logic 37, no. 3 (1998): 187–91. http://dx.doi.org/10.1007/bf02671590.

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16

Mardaev, S. I. "Modal positive operators." Algebra and Logic 38, no. 5 (1999): 319–25. http://dx.doi.org/10.1007/bf02671748.

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17

van Rooij, Robert. "A Modal Analysis of Presupposition and Modal Subordination." Journal of Semantics 22, no. 3 (2005): 281–305. http://dx.doi.org/10.1093/jos/ffh026.

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18

MARITA, Masao. "Modal Test Reference Selection for Experimental Modal Analysis." Transactions of the Japan Society of Mechanical Engineers Series C 65, no. 636 (1999): 3161–66. http://dx.doi.org/10.1299/kikaic.65.3161.

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19

Fei, W., X. Ll, L. j. Shl, and Y. b. Yang. "A Separation Modal Method of Experimental Modal Analysis." Shock and Vibration Digest 23, no. 8 (1991): 18–20. http://dx.doi.org/10.1177/058310249102300803.

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20

Vu, Viet Hung, and Marc Thomas. "Uncertainties on modal parameters by operational modal analysis." Mechanics & Industry 15, no. 2 (2014): 153–58. http://dx.doi.org/10.1051/meca/2014018.

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21

Gat, Shrenik B. "Modal Analysis of Francis Turbine Blade Using Composite Material." International Journal Of Mechanical Engineering And Information Technology 05, no. 04 (2017): 1855–60. http://dx.doi.org/10.18535/ijmeit/v5i4.01.

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22

Wenting Sun, Wenting Sun, Peng Lv Peng Lv, Changhe Zhou Changhe Zhou, Jun Wu Jun Wu, and Shaoqing Wang Shaoqing Wang. "Modal analysis of the 0th order nulled phase masks." Chinese Optics Letters 11, no. 7 (2013): 070502–70506. http://dx.doi.org/10.3788/col201311.070502.

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23

Jarunchut, Chearakoon, Ichiro Hagiwara, and Maria Savchenko. "731 COMBINATION METHOD FOR TETRAHEDRAL-4 ELEMENT MODAL ANALYSIS." Proceedings of the Dynamics & Design Conference 2005 (2005): _731–1_—_731–4_. http://dx.doi.org/10.1299/jsmedmc.2005._731-1_.

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24

Huňady, Róbert, František Trebuňa, Martin Hagara, and Martin Schrötter. "The Use of Modan 3D in Experimental Modal Analysis." Applied Mechanics and Materials 486 (December 2013): 36–41. http://dx.doi.org/10.4028/www.scientific.net/amm.486.36.

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Experimental modal analysis is a relatively young part of dynamics, which deals with the vibration modes identification of machines or their parts. Its development has started since the beginning of the eighties, when the computers hardware equipment has improved and the fast Fourier transform (FFT) could be used for the results determination. Nowadays it provides an uncountable set of vibration analysis possibilities starting with conventional contact transducers of acceleration and ending with modern noncontact optical methods. In this contribution we mention the use of high-speed digital im
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25

Zhu, Yi-Chen, and Siu-Kui Au. "Bayesian data driven model for uncertain modal properties identified from operational modal analysis." Mechanical Systems and Signal Processing 136 (February 2020): 106511. http://dx.doi.org/10.1016/j.ymssp.2019.106511.

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26

Morse, Ivan E. "Tutorial on modal analysis." Journal of the Acoustical Society of America 77, S1 (1985): S33. http://dx.doi.org/10.1121/1.2022284.

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27

Rossing, Thomas D. "Modal analysis of guitars." Journal of the Acoustical Society of America 112, no. 5 (2002): 2409. http://dx.doi.org/10.1121/1.4779838.

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28

NAGAMATSU, Akio. "Modal analysis in Japan." Transactions of the Japan Society of Mechanical Engineers Series C 56, no. 521 (1990): 1–7. http://dx.doi.org/10.1299/kikaic.56.1.

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29

Ege, Kerem, Xavier Boutillon, and Bertrand David. "High resolution modal analysis." Journal of the Acoustical Society of America 123, no. 5 (2008): 3062. http://dx.doi.org/10.1121/1.2932803.

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30

Colom, Rémi, Brian Stout, Ross Mcphedran, and Nicolas Bonod. "Modal analysis of anapoles." Journal of Physics: Conference Series 1461 (March 2020): 012017. http://dx.doi.org/10.1088/1742-6596/1461/1/012017.

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31

Cingel, Michal, Ján Čelko, and Marek Drličiak. "Analysis in modal split." Transportation Research Procedia 40 (2019): 178–85. http://dx.doi.org/10.1016/j.trpro.2019.07.028.

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32

Ege, Kerem, Xavier Boutillon, and Bertrand David. "High-resolution modal analysis." Journal of Sound and Vibration 325, no. 4-5 (2009): 852–69. http://dx.doi.org/10.1016/j.jsv.2009.04.019.

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33

McDonald, Paul, and Garth Wiley. "Modal analysis technology review." Journal of the Acoustical Society of America 85, S1 (1989): S39. http://dx.doi.org/10.1121/1.2026947.

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34

Maia, N. M. M., and J. M. M. Silva. "Modal analysis identification techniques." Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences 359, no. 1778 (2001): 29–40. http://dx.doi.org/10.1098/rsta.2000.0712.

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35

Sando, Keishi, and Hideitsu Hino. "Modal Principal Component Analysis." Neural Computation 32, no. 10 (2020): 1901–35. http://dx.doi.org/10.1162/neco_a_01308.

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Principal component analysis (PCA) is a widely used method for data processing, such as for dimension reduction and visualization. Standard PCA is known to be sensitive to outliers, and various robust PCA methods have been proposed. It has been shown that the robustness of many statistical methods can be improved using mode estimation instead of mean estimation, because mode estimation is not significantly affected by the presence of outliers. Thus, this study proposes a modal principal component analysis (MPCA), which is a robust PCA method based on mode estimation. The proposed method finds
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36

KUWABARA, Hiroki, Takahiko ITO, Yuichi TANABE, Mitsuo IWAHARA, Akio NAGAMATSU, and Masayuki TAKAHASHI. "21315 Experimental modal analysis and operational modal analysis which use strain gauge." Proceedings of Conference of Kanto Branch 2007.13 (2007): 469–70. http://dx.doi.org/10.1299/jsmekanto.2007.13.469.

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37

Sung, Shung H., and Donald J. Nefske. "Classical modal analysis and asymptotic modal analysis of structural and acoustic systems." Journal of the Acoustical Society of America 146, no. 4 (2019): 2905. http://dx.doi.org/10.1121/1.5137079.

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38

Winarski, Daniel, Kip P. Nygren, and Tyson Winarski. "Finite Element Analysis versus Empirical Modal Analysis of a Basketball Rim and Backboard." Vibration 7, no. 2 (2024): 582–94. http://dx.doi.org/10.3390/vibration7020030.

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The first goal of this research was to document the process of using the MODAL analysis system of the ANSYS 2024R1 student edition to create a finite element model of the modes and frequencies of vibration of one basketball rim and backboard design. This finite element model included the use of steel for the rim and its mount, a tempered glass backboard, and an aluminum frame behind the backboard. After a mesh was created, fixed support boundary conditions were applied to the four corners of the aluminum frame, followed by the theoretical modal analysis. The second goal was to validate this mo
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39

KANAZAWA, Kenji, and Tetsuya MATSUI. "ARMAMA MODEL FOR SPECTRAL ANALYSIS AND MODAL IDENTIFICATION." Journal of Structural and Construction Engineering (Transactions of AIJ) 67, no. 554 (2002): 71–78. http://dx.doi.org/10.3130/aijs.67.71_1.

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40

Walther, Thomas. "Auditory scene analysis with a multi-modal model." Journal of the Acoustical Society of America 137, no. 4 (2015): 2375. http://dx.doi.org/10.1121/1.4920630.

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41

Yousif, Omaima A., Adil N. Abed, and Hamid A. Awad. "Modal Split Model Using Multiple Linear Regression Analysis." Anbar Journal for Engineering Sciences 12, no. 2 (2021): 222–28. http://dx.doi.org/10.37649/aengs.2021.171190.

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42

Mr., Aniruddha S. Bhoi, and U.M.Nimbalkar Prof. "FINITE ELEMENT ANALYSIS OF CRANKCASE." JournalNX - a Multidisciplinary Peer Reviewed Journal RIT PG Con-18 (April 22, 2018): 318–21. https://doi.org/10.5281/zenodo.1413826.

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In an internal combustion engine of the reciprocating type the crankcase is housing for crankshaft. Crankcase is main building block of engine. The enclosure form the large cavity in the engine and it is locate below cylinder or cylinders head which in multi cylinder engine is usually integrated into one or more cylinder block. In this paper analysis investigation has been conducted on the crankcase of four cylinder engine. In this paper static analysis and modal analysis is done through ANSYS software. A static analysis is use to find total deformation, stress, strain of crankcase caused by p
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43

OKUMA, Masaaki, Tetsuji ISHIKAWA, and Masanobu NAKAMURA. "Vibration Analysis by Modal Energy Analysis Method. 1st Report, Proposition of Modal Energy Analysis Method." Transactions of the Japan Society of Mechanical Engineers Series C 57, no. 543 (1991): 3443–50. http://dx.doi.org/10.1299/kikaic.57.3443.

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44

OKUBO, Nobuyuki, and Koichi TAKAYAMA. "Automatic extraction method of modal parameters in modal analysis." Journal of the Japan Society for Precision Engineering 55, no. 4 (1989): 742–47. http://dx.doi.org/10.2493/jjspe.55.742.

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45

Kurowski, Piotr, Krzysztof Mendrok, and Tadeusz Uhl. "An application of operational modal analysis in modal filtering." Journal of Physics: Conference Series 305 (July 19, 2011): 012094. http://dx.doi.org/10.1088/1742-6596/305/1/012094.

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46

YASUI, Yoshitsugu, and Tetsuo YASAKA. "Modal frequency response analysis using modal load transformation method." Transactions of the Japan Society of Mechanical Engineers Series C 56, no. 522 (1990): 368–73. http://dx.doi.org/10.1299/kikaic.56.368.

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47

Abdelghani, M., and D. J. Inman. "Modal Appropriation for Use with In-Operation Modal Analysis." Shock and Vibration 2015 (2015): 1–5. http://dx.doi.org/10.1155/2015/537030.

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We propose in this paper a numerical modal appropriation method for use with in-operation modal analysis (INOPMA). The key idea is to realize that the correlation sequence of the system output is the sum of decaying sinusoids with a certain phase shift and therefore it may be considered as an impulse response. The method is based on performing a numerical convolution of a single sine wave force with the system output correlation sequence. The steps are then similar to the classical modal appropriation method, although the characteristic frequencies are different. This approach is validated and
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48

Zhou, Bainan, and Xu Li. "Multimodal Emotion Analysis Model based on Interactive Attention Mechanism." Frontiers in Computing and Intelligent Systems 3, no. 2 (2023): 67–73. http://dx.doi.org/10.54097/fcis.v3i2.7512.

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In traditional multi-modal sentiment analysis, feature fusion is usually achieved by simple splicing, and multi-modal sentiment analysis is only trained as a single task, without considering the contribution of inter-modal information interaction to sentiment analysis and the correlation and constraint relationship between multi-modal and single-modal (text, video and audio) tasks. Therefore, a multi-task model based on interactive attention mechanism is proposed in this paper, which uses inter-modal attention mechanism and single-modal self-attention mechanism to train multi-modal sentiment a
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49

Maksimova, L. L. "Modal logics and varieties of modal algebras: The beth properties, interpolation, and amalgamation." Algebra and Logic 31, no. 2 (1992): 90–105. http://dx.doi.org/10.1007/bf02259848.

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50

Rahbar-Ranji, Ahmad. "Modal analysis of a box-shape girder by numerical method." Odes’kyi Politechnichnyi Universytet. Pratsi, no. 2 (August 20, 2016): 21–25. http://dx.doi.org/10.15276/opu.2.49.2016.06.

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