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Journal articles on the topic 'Coupling Loss Factor'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 June 2025

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1

Lai, M. L., and A. Soom. "Prediction of Transient Vibration Envelopes Using Statistical Energy Analysis Techniques." Journal of Vibration and Acoustics 112, no. 1 (1990): 127–37. http://dx.doi.org/10.1115/1.2930088.

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The prediction, by the statistical energy analysis (SEA) method, of transient vibration envelopes for coupled systems is investigated. The relation between the time-varying energy transferred between two coupled subsystems and time-varying energies of the subsystems is studied numerically and experimentally. These studies indicate that time-varying energy transmitted between two subsystems is related to the subsystem energies by an apparent time-varying coupling loss factor. It is shown that the apparent coupling loss factor approaches the asymptotic (or steady-state) coupling loss factor as r

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2

Lu, Shou Wei, Hui Hua Feng, Xiao Long Mou, and Zheng Xing Zuo. "The Vibration Response Analysis of Coupling System and its Experimental Validation Based on the SEA Method." Advanced Materials Research 479-481 (February 2012): 1314–17. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.1314.

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In this paper, methods of acquiring internal loss factors and coupling loss factors by experimental measurement are investigated. The internal loss factor and coupling loss factor of two coupled plates is measured by the modified power injection method. The SEA model of coupled system is established based on the measured results of internal loss factor (ILF) and coupling loss factor (CLF). A random vibration analysis is conducted as a validation example. Since the formulation solution and measured result agree preferably, the validity of the measurement method and the effectiveness of analyzin

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3

Mandale, Maruti B., P. Bangaru Babu, and SM Sawant. "Statistical energy analysis parameter estimation for different structural junctions of rectangular plates." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 230, no. 15 (2016): 2603–10. http://dx.doi.org/10.1177/0954406215615628.

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In industries, the use of appropriate junctions between components is of paramount interest. Coupling loss factor is one of the important parameters in statistical energy analysis for vibroacoustic analysis of complicated structures in drawing board stage. The values of coupling loss factor were calculated and compared for different junctions. The screwed and bolted junctions were examined for thin rectangular plates of same size. The energy level difference method was used to find coupling loss factors because of its simplicity. These experimentally found coupling loss factors were later comp

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4

Bhagwan, Mandale Maruti, and Bangarubabu Popuri. "Estimation of coupling loss factors for rectangular plates with different materials and junctions." Noise & Vibration Worldwide 50, no. 9-11 (2019): 306–12. http://dx.doi.org/10.1177/0957456519883264.

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In statistical energy analysis, coupling loss factor is the essential parameter for vibro-acoustic analysis of complicated structures. The coupling loss factors have been estimated using energy-level difference method. The tightening torque applied at structural junction has been varied. Higher values of coupling loss factor have been observed for higher tightening torque on bolted junction. The coupling loss factors have been determined for various structural junctions of rectangular composite plates. The riveted and bolted junctions have been examined for composite plates in same plane and s

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5

Clarkson, B. L. "Estimation of the Coupling Loss Factor of Structural Joints." Proceedings of the Institution of Mechanical Engineers, Part C: Mechanical Engineering Science 205, no. 1 (1991): 17–22. http://dx.doi.org/10.1243/pime_proc_1991_205_085_02.

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This paper shows how Bishop's receptance method can be used to derive the transmission of vibrational energy across a structural joint. The results are averaged over frequency bands and on the assumption of light damping an approximate formula for the coupling loss factor is obtained. This is an important parameter in the statistical energy analysis method of estimating the response of structures to broad-band random forces. The results compare well with those obtained by the travelling wave method.

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6

Li, He, Quan Feng Liu, and Bang Chun Wen. "Vibration Transient Response Using Statistical Energy Analysis." Applied Mechanics and Materials 55-57 (May 2011): 941–44. http://dx.doi.org/10.4028/www.scientific.net/amm.55-57.941.

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Transient Statistic Energy Analysis (T. S. E. A.) for transient response of a vibration system is investigated in this paper. Mathematical expressions of the rise time and the peak energy were derived. Numerical modeling of the system was also made. It showed that the peak energy decrease as the internal loss factor and the coupling stiffness decrease, the rise time decease as the internal loss factor and the coupling loss factor increase. It was found that the results of TSEA and the traditional methods are identical.

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7

Park, W. S., D. J. Thompson, and N. S. Ferguson. "Variability of the coupling loss factor between two coupled plates." Journal of Sound and Vibration 279, no. 3-5 (2005): 557–79. http://dx.doi.org/10.1016/j.jsv.2003.11.035.

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8

Delpero, Tommaso, Andrea E. Bergamini, and Paolo Ermanni. "Identification of electromechanical parameters in piezoelectric shunt damping and loss factor prediction." Journal of Intelligent Material Systems and Structures 24, no. 3 (2012): 287–98. http://dx.doi.org/10.1177/1045389x12457253.

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Shunted piezoelectric elements have been studied for several years as promising devices for vibration damping. Different shunting techniques have been developed to deal with the vibration energy in the appropriate way. The energy dissipated by all these techniques, expressed in terms of loss factor or damping ratio, mainly depends on two different contributions: the electromechanical coupling and the shunt design. Therefore, an accurate prediction of the damping is based on a reliable identification of the generalized coupling coefficient that completely describes the electromechanical couplin

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9

Lan, Jun Xin, Xian Feng Huang, Shang You Wei, and Zhi Xiang Zhuang. "Prediction on Coupling Loss Factors of Building Members." Applied Mechanics and Materials 744-746 (March 2015): 1589–92. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.1589.

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Coupling Loss Factor (CLF) is a parameter describing building sound loss, which can be stand for energy loss in the process of crossing the structure. A low value of CLF refers to the high insulation performance of building member. Therefore, reducing the coupling loss is a favorable way to improve the sound insulation. For the purpose of exploring the relationship between the properties of building materials and CLF, the commonly used building materials are selected to analyze. It is indicated that the properties of building material have obvious effects on the CLF. As the consequence, some p

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10

Stalmans, Wannes. "Validation of a hybrid deterministic-diffuse approach for prediction of diffuse vibration transmission across finite plate junctions." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 267, no. 1 (2023): 65–80. http://dx.doi.org/10.3397/no_2023_0018.

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Accurate numerical prediction of vibration transmission across junctions is important since this flanking vibration transmission can have a substantial influence on the sound insulation of a system. An important parameter for quantifying vibration transmission across junctions is the coupling loss factor commonly used in Statistical Energy Analysis (SEA). A hybrid deterministicdiffuse approach is adopted here to calculate coupling loss factors across finite junctions. With this approach some parts of the structure are modelled as diffuse subsystems, for example the plates connected to the junc

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11

Maidanik, G., and K. J. Becker. "Dependence of the induced loss factor on the coupling forms and coupling strengths: linear analysis." Journal of Sound and Vibration 266, no. 1 (2003): 15–32. http://dx.doi.org/10.1016/s0022-460x(02)01389-5.

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12

Maidanik, G., and K. J. Becker. "Dependence of the induced loss factor on the coupling forms and coupling strengths: energy analysis." Journal of Sound and Vibration 266, no. 1 (2003): 33–48. http://dx.doi.org/10.1016/s0022-460x(02)01390-1.

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13

Alahnomi, Rammah A., Z. Zakaria, E. Ruslan, and Amyrul Azuan Mohd Bahar. "A Novel Symmetrical Split Ring Resonator Based on Microstrip for Microwave Sensors." Measurement Science Review 16, no. 1 (2016): 21–27. http://dx.doi.org/10.1515/msr-2016-0004.

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Abstract In this paper, novel symmetrical split ring resonator (SSRR) is proposed as a suitable component for performance enhancement of microwave sensors. SSRR has been employed for enhancing the insertion loss of the microwave sensors. Using the same device area, we can achieve a high Q-factor of 141.54 from the periphery enhancement using Quasi-linear coupling SSRR, whereas loose coupling SSRR can achieve a Q-factor of 33.98 only. Using Quasi-linear coupling SSRR, the Q-factor is enhanced 4.16 times the loose coupling SSRR using the same device area. After the optimization was made, the SSR

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14

Li, Shengkun, Xiaowen Tian, and Sining Tian. "Research on Optical Fiber Ring Resonator Q Value and Coupling Efficiency Optimization." Micromachines 14, no. 9 (2023): 1680. http://dx.doi.org/10.3390/mi14091680.

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The coupling efficiency of the fiber ring resonator has an important influence on the scale factor of the resonant fiber gyroscope. In order to improve the scale factor of the gyroscope, the coupling efficiency of the fiber ring resonator and its influential factors on the scale factor of the gyroscope are analyzed and tested. The results show that the coupling efficiency is affected by both the splitting ratio of the coupler and the loss in the cavity. When the coupling efficiency approaches 0.75 at the under-coupling state, the scaling factor of the gyroscope is the highest. This provides a

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15

钟, 策. "Calculation of the Point Connection Transfer Coefficient and the Coupling Loss Factor." Advances in Applied Mathematics 11, no. 06 (2022): 3986–4002. http://dx.doi.org/10.12677/aam.2022.116427.

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16

Tso, Y. K., and C. H. Hansen. "AN INVESTIGATION OF THE COUPLING LOSS FACTOR FOR A CYLINDER/PLATE STRUCTURE." Journal of Sound and Vibration 199, no. 4 (1997): 629–43. http://dx.doi.org/10.1006/jsvi.1996.0632.

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17

Kimata, Aoi, Toru Yamazaki, Kai Kurihara, Atsushi Kawano, Shohei Terauchi, and Taisei Yamaguchi. "Effect of Additional Masses on Uniform Structures to SEA Coupling Loss Factor." Proceedings of the Dynamics & Design Conference 2022 (2022): 339. http://dx.doi.org/10.1299/jsmedmc.2022.339.

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18

Bharath Kumar, K., and T. Shanmuganantham. "Investigation of SIW directional coupler for 60ghz mm-wave applications." International Journal of Engineering & Technology 7, no. 1.8 (2018): 1. http://dx.doi.org/10.14419/ijet.v7i1.8.9440.

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In this article, 60 GHz directional coupler is designed by using Substrate Integrated Waveguide (SIW) technology using Coplanar waveguide as a transmission path. To design directional coupler RT duriod 5880 substrate material is used. Here directional coupler is analyzed by changing the thickness of copper coating and height of the substrate. By changing the thickness of copper coating and height of substrate examining the directional coupler results like reflection coefficient, insertion loss, coupling factor, isolation loss, VSWR, surface current, Electric field and magnetic field variations

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19

Xian, Zhang, Yang Qingxin, Chen Haiyan, Zhang Xin, Jin Liang, and Li Yang. "A novel two-port network model for RCPT system." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 33, no. 1/2 (2013): 157–66. http://dx.doi.org/10.1108/compel-10-2012-0234.

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Purpose – The purpose of the paper is to show that how a contactless power transmission system via electromagnetic (EM) resonantly coupling power transmission (RCPT) technology may be analyzed in-depth by using a detailed T-type two-port network model with leakage inductance variable. Design/methodology/approach – Through the introduction of coupling coefficient and quality factor, the influence of different physical parameters on the system performance is taken into consideration and validated by power transmission experiment. Findings – It is shown that system performance is mainly subject t

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20

GAY DUCATI, M. B., V. P. GONÇALVES, and L. F. MACKEDANZ. "QCD COLLISIONAL ENERGY LOSS IN AN INCREASINGLY INTERACTING QUARK–GLUON PLASMA." International Journal of Modern Physics A 22, no. 18 (2007): 3105–22. http://dx.doi.org/10.1142/s0217751x07036701.

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The discovery of the jet quenching in central Au + Au collisions at the Relativistic Heavy-Ion Collider (RHIC) at Brookhaven National Laboratory has provided clear evidence for the formation of strongly interacting dense matter. It has been predicted to occur due to the energy loss of high energy partons that propagate through the quark–gluon plasma. In this paper we investigate the dependence of the parton energy loss due to elastic scatterings in a parton plasma on the value of the strong coupling and its running with the evolution of the system. We analyze different prescriptions for the QC

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21

Kedia, Jyoti, and Neena Gupta. "A High Finesse Serial Coupled Microresonator Filter." Journal of Optical Communications 41, no. 2 (2020): 117–23. http://dx.doi.org/10.1515/joc-2017-0160.

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AbstractA serially coupled double-ring resonator using the low loss multilayer silicon wire waveguide is presented that has featured high out-of-band rejection and high finesse. The round trip loss and Q factor has also been calculated and found moderate. However, extremely low loss waveguide has shown reduced coupling between the ring and the waveguide.

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22

Zhang, Zhiying, Xin Shen, Hongliang Yu, et al. "Elastic Properties and Energy Dissipation Related to the Disorder-Order Ferroelectric Transition in a Multiferroic Metal-Organic Framework [(CH3)2NH2][Fe(HCOO)3] with a Perovskite-Like Structure." Materials 14, no. 9 (2021): 2403. http://dx.doi.org/10.3390/ma14092403.

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The elastic properties and the coupling of ferroelasticity with ferromagnetism and ferroelectricy are crucial for the development of multiferroic metal-organic frameworks (MOFs) with strong magnetoelectric coupling. Elastic properties and energy dissipation related to the disorder-order ferroelectric transition in [(CH3)2NH2][Fe(HCOO)3] were studied by differential scanning calorimetry (DSC), low temperature X-ray diffraction (XRD) and dynamic mechanical analysis (DMA). DSC result indicated the transition near 164 K. XRD showed the first-order structural transition from rhombohedral R3−c to mo

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23

Ewing, Mark, Kranthi Vatti, and Ignatius Vaz. "Coupling loss factor estimation for plates joined at a point: Analysis and experiment." Journal of the Acoustical Society of America 127, no. 3 (2010): 1769. http://dx.doi.org/10.1121/1.3383823.

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24

Ewing, Mark, Kranthi Vatti, and Ignatius Vaz. "Coupling loss factor estimation for plates joined along a line: Analysis and experiment." Journal of the Acoustical Society of America 127, no. 3 (2010): 1769. http://dx.doi.org/10.1121/1.3383825.

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25

Franklin, James L., and Eugene M. Johnson. "Control of Neuronal Size Homeostasis by Trophic Factor–mediated Coupling of Protein Degradation to Protein Synthesis." Journal of Cell Biology 142, no. 5 (1998): 1313–24. http://dx.doi.org/10.1083/jcb.142.5.1313.

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We demonstrate that NGF couples the rate of degradation of long-lived proteins in sympathetic neurons to the rate of protein synthesis. Inhibiting protein synthesis rate by a specific percentage caused an almost equivalent percentage reduction in the degradation rate of long-lived proteins, indicating nearly 1:1 coupling between the two processes. The rate of degradation of short-lived proteins was unaffected by suppressing protein synthesis. Included in the pool of proteins that had increased half-lives when protein synthesis was inhibited were actin and tubulin. Both of these proteins, which

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26

Su, Jintao, and Ling Zheng. "An Identification Method for the “Effective Coupling Loss Factor” Based on the Hybrid FE-SEA Model." Applied Sciences 13, no. 6 (2023): 3687. http://dx.doi.org/10.3390/app13063687.

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Due to the limitation of the SEA method, the hybrid FE-SEA method has become a powerful tool to solve the medium-frequency “acoustic-vibration problem”. However, in most cases, the solution process of the hybrid FE-SEA model is often accompanied by ill-posed matrix problems, such as the inverse solution of the matrix, and the calculation accuracy is not high, which affects the overall calculation accuracy of the hybrid FE-SEA model. In this paper, the calculation method for the effective coupling matrix of the hybrid FE-SEA model is further improved. Based on the basic parameter solving method

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27

Bhowmick, Sourav K., and Dibakar Ghosh. "Targeting engineering synchronization in chaotic systems." International Journal of Modern Physics C 27, no. 01 (2016): 1650006. http://dx.doi.org/10.1142/s0129183116500066.

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A method of targeting engineering synchronization states in two identical and mismatch chaotic systems is explained in detail. The method is proposed using linear feedback controller coupling for engineering synchronization such as mixed synchronization, linear and nonlinear generalized synchronization and targeting fixed point. The general form of coupling design to target any desire synchronization state under unidirectional coupling with the help of Lyapunov function stability theory is derived analytically. A scaling factor is introduced in the coupling definition to smooth control without

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28

Schmid, Daniel, René Eisermann, Anna Peczek, Georg Winzer, Lars Zimmermann, and Stephan Krenek. "Wafer-Scale Experimental Determination of Coupling and Loss for Photonic Integrated Circuit Design Optimisation." Photonics 12, no. 3 (2025): 234. https://doi.org/10.3390/photonics12030234.

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We investigate integrated silicon ring resonators with regard to the influence of design parameters and intra-wafer variations. First, we show the effect of different ring radii and gaps between ring and bus waveguide on optical properties (peak width, finesse, Q factor, and extinction ratio), from which we calculate the resonators’ coupling and loss coefficients. The dependence on the gap of these properties is discussed at the wafer scale. Second, by incorporating the spectra of 2242 resonators from 59 nominally identical dies on a 200 mm wafer, we show how these properties depend on the res

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29

Nieradka, Paweł, Andrzej Dobrucki, and Bartosz Chmielewski. "Quality criterion and errors of corrected negative SEA loss factors." Acta Acustica 8 (2024): 32. http://dx.doi.org/10.1051/aacus/2024040.

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Statistical Energy Analysis (SEA) is a well-known numerical method for predicting vibroacoustic phenomena in complex systems. The accuracy of SEA models relies on the precise determination of coupling loss factors and damping loss factors. Experimental SEA (E-SEA) methods, such as the Power Injection Method are commonly employed to measure these parameters. However, these techniques may yield negative loss factors, which are considered measurement errors. Monte Carlo Filtering (MCF) is one of the procedures, that allows the correction of negative loss factors, but the quality of the results re

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30

MORITA, Satoshi. "613 A Coupling Loss Factor Estimation for Statistical Energy Analysis based on Modal Parameter." Proceedings of Conference of Kansai Branch 2016.91 (2016): 204–7. http://dx.doi.org/10.1299/jsmekansai.2016.91.204.

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31

Fahy, F. J. "AN ALTERNATIVE TO THE SEA COUPLING LOSS FACTOR: RATIONALE AND METHOD FOR EXPERIMENTAL DETERMINATION." Journal of Sound and Vibration 214, no. 2 (1998): 261–67. http://dx.doi.org/10.1006/jsvi.1998.1533.

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32

Cheng, Xin, Dong Yu Xu, Shuang Shuang Liao, and Shi Feng Huang. "Influence of Base Thickness on Properties of 1-3-2 Connectivity Cement Based Piezoelectric Composite." Advanced Materials Research 306-307 (August 2011): 835–38. http://dx.doi.org/10.4028/www.scientific.net/amr.306-307.835.

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Sulphoaluminate cement and Lead Niobium-Magnesium Zirconate Titanate ceramic (PMN) were used as matrix and functional component to fabricate 1-3-2 piezoelectric ceramic-cement composites by dicing and filling method. The influences of base thickness on piezoelectric, dielectric and electromechanical coupling properties of the composites were analyzed and discussed. The results show that with increasing the base thickness, the piezoelectric stain factor d33 increases gradually, while the piezoelectric voltage factor g33 decreases. The relative dielectric factor εr decreases initially and then i

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33

Gao, G. Y., B. J. Fu, Y. H. Lü, Y. Liu, S. Wang, and J. Zhou. "Coupling the modified SCS-CN and RUSLE models to simulate hydrological effects of restoring vegetation in the Loess Plateau of China." Hydrology and Earth System Sciences Discussions 9, no. 3 (2012): 4193–233. http://dx.doi.org/10.5194/hessd-9-4193-2012.

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Abstract. Predicting event runoff and soil loss under different land covers is essential to quantitatively evaluate the hydrological responses of vegetation restoration in the Loess Plateau of China. The Soil Conservation Service Curve Number (SCS-CN) and Revised Universal Soil Loss Equation (RUSLE) models are widely used in this region to this end. This study incorporated antecedent moisture condition (AMC) in runoff production and initial abstraction of the SCS-CN model, and considered the direct effect of runoff on event soil loss by adopting a rainfall-runoff erosivity factor in the RUSLE

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34

Kopun, Judy G., Patricia G. Stelmachowicz, Edward Carney, and Laura Schulte. "Coupling of FM Systems to Individuals With Unilateral Hearing Loss." Journal of Speech, Language, and Hearing Research 35, no. 1 (1992): 201–7. http://dx.doi.org/10.1044/jshr.3501.201.

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This study examined the attenuation characteristics of five FM system sound delivery options for a group of 10 adults and 15 children (5–13 years). Sound delivery options included a tube-fitting, lightweight headphones, a CROS earmold with tubing, a CROS earmold with a snap-ring, and a standard snap-ring earmold with a vent. Attenuation was defined as the difference between probe-tube microphone measures of the ear canal resonance and the SPL in the ear canal with each sound delivery option in place. A statistically significant but clinically inconsequential difference in attenuation for the C

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35

Fu, Tao, Ziquan Zhou, Daofan Wang, Tianbo Yang, Haiou Li, and Yonghe Chen. "Electromagnetically induced transparency based on magnetic toroidal mode of dielectric reverse-symmetric spiral metasurfaces." New Journal of Physics 24, no. 3 (2022): 033024. http://dx.doi.org/10.1088/1367-2630/ac55b4.

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Abstract The intriguing properties of the toroidal mode (TM) resonance can potentially promote a low-loss light–matter interaction. This study proposes an electromagnetically induced transparency (EIT) resonance with a high quality factor, which can reach 7798, and low mode volume can reach 0.009 μm3, high contrast ratio can reach nearly 100%, in the near-infrared region, which is generated by the magnetic TM in a reverse-symmetric coupling spiral metasurface. A two-oscillator model can only explain the influence of near-field coupling at the EIT point for weak coupling. Moreover, a multipole

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36

Ma, Yijiang, Guoping Chen, Jie Wu, Kangjia Ma, and Le Fan. "Vibration Fatigue Analysis of a Simply Supported Cracked Beam Subjected to a Typical Load." Applied Sciences 12, no. 15 (2022): 7398. http://dx.doi.org/10.3390/app12157398.

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In order to realize the accurate prediction of the vibration fatigue life of the beam in service, a loose coupling analysis method is proposed to carry out vibration fatigue analysis of a beam with an initial crack. In modal analysis, the initial crack segment is replaced with a torsion spring, and the damping loss factor is introduced by the complex modulus of elasticity; for the simply supported beam, the inherent vibration characteristic equation of the cracked beam is derived. In vibration fatigue analysis, the interaction between the crack’s growth and vibration analysis is considered, an

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37

Muharam, Aam, Suziana Ahmad, and Reiji Hattori. "Scaling-Factor and Design Guidelines for Shielded-Capacitive Power Transfer." Energies 13, no. 16 (2020): 4240. http://dx.doi.org/10.3390/en13164240.

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This paper introduces scaling-factor and design guidelines for shielded-capacitive power transfer (shielded-CPT) systems, offering a simplified design process, coupling-structure optimization, and consideration of safety. A novel scaling-factor-analysis method is proposed by determining the configuration of the coupling structure that improves system safety and increases operating efficiency while minimizing the gap between the shield and the coupler plate. The inductor-series resistance is also analyzed to study the loss efficiency in the shielded-CPT system. The relationship among the shield

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38

Gao, G. Y., B. J. Fu, Y. H. Lü, Y. Liu, S. Wang, and J. Zhou. "Coupling the modified SCS-CN and RUSLE models to simulate hydrological effects of restoring vegetation in the Loess Plateau of China." Hydrology and Earth System Sciences 16, no. 7 (2012): 2347–64. http://dx.doi.org/10.5194/hess-16-2347-2012.

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Abstract. Predicting event runoff and soil loss under different land covers is essential to quantitatively evaluate the hydrological responses of vegetation restoration in the Loess Plateau of China. The Soil Conservation Service curve number (SCS-CN) and Revised Universal Soil Loss Equation (RUSLE) models are widely used in this region to this end. This study incorporated antecedent moisture condition (AMC) in runoff production and initial abstraction of the SCS-CN model, and considered the direct effect of runoff on event soil loss by adopting a rainfall-runoff erosivity factor in the RUSLE

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39

Jin, Jin, Qi Wang, and Song Zhang. "Effect of High-Sintering-Temperature Reduction Behavior on Coke Solution Loss Reaction with Different Thermal Properties." Metals 13, no. 1 (2023): 117. http://dx.doi.org/10.3390/met13010117.

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With the shortage of high-quality coking coal resources and the pursuit of low-cost smelting, the types and sources of coal have changed. Therefore, it is difficult to establish an effective correlation between the existing evaluation indexes of coke thermal performance and the production indexes of the blast furnace. The dissolution deterioration of coke directly affects the production benefits of the blast furnace, and the dissolution deterioration of blast furnace coke is the result of ore–coke coupling. To better understand the mechanism of the coupling reaction relative to the thermal pro

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40

Kuang, Xian Feng, and Zhi Wei Wang. "Power Flow Method for Determination of Product Shock Fragility." Applied Mechanics and Materials 101-102 (September 2011): 1167–72. http://dx.doi.org/10.4028/www.scientific.net/amm.101-102.1167.

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One of necessary prerequisites to design cushioned package is the determination of product shock fragility, which is so far obtained by means of destructive method on shock testing machines. This paper presents a non-destructive method--power flow method to predict the product fragility. The transport package system was first divided into two subsystems to simplify analysis. The energy of critical component of the product was then calculated by applying a power flow equilibrium equation. And finally, the parameters of the transport package system, such as the input power, the internal loss fac

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41

Yao, Jinbao, Nianping Wu, and Yueyue Chen. "A Transfer Function Method to Predict Transportation-Induced Building Vibration on Saturated Soil." Buildings 15, no. 7 (2025): 1097. https://doi.org/10.3390/buildings15071097.

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Building vibration induced by running trains or other loads is related to soil vibration, building coupling loss, and the building floor’s amplification factor. In order to predict the vibration response of the proposed building caused by various loads, the propagation law of Rayleigh wave in saturated foundation soil and the refraction and transmission coefficients of Rayleigh wave between saturated soil and building structure are analyzed by using the theoretical analysis method, and the building coupling loss coefficient is obtained. The dynamic equation of the building’s structural vibrati

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42

Wang, Ting, Tao Yao, and Guo Lin Duan. "Optimization Design on Vibration and Noise Reduction of Damping Sandwich Circular Saw." Applied Mechanics and Materials 215-216 (November 2012): 433–37. http://dx.doi.org/10.4028/www.scientific.net/amm.215-216.433.

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In view of the study of topology optimization design method on vibration and noise reduction of damping sandwich circular saw, the optimal thickness and layout of damping material were obtained. The optimization model of circular saw was established by using the coupling method, the optimum thickness of damping layer was found. By using ESO method, deleting elements method and modal loss factor sensitivity calculation method were obtained. Making use of modal loss factor sensitivity, ineffective elements were deleted by judging the whole structure damping effect on each damping material elemen

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WANG, Xiong, Yingshan GAO, Shunqi ZHANG, and Weiyuan DOU. "Electromechanical coupling modeling and analysis of piezoelectric damping laminated structures based on zig-zag hypothesis." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 40, no. 2 (2022): 407–13. http://dx.doi.org/10.1051/jnwpu/20224020407.

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Based on the zig-zag theory and Hamiltonian principle, the electromechanical coupling dynamic finite element(FE) model of piezoelectric damping laminated structure is established, the natural frequency and loss factor of the structure is accurately calculated. The eight nodes quadratic element is adopt for FE modeling, each node with seven DOFs, which considers the complex elastic modulus of damping layer. The correctness of model is verified by the calculation and simulation of an example in the literature. The effects of reinforcement orientation angle, thickness of damping layer and structu

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Liu, Weijian, Xuegeng Chen, and Shan Zeng. "Design and Parameter Optimization of a Rigid–Flexible Coupled Rod Tooth Threshing Device for Ratoon Rice Based on MBD-DEM." Agriculture 14, no. 11 (2024): 2083. http://dx.doi.org/10.3390/agriculture14112083.

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To solve the problem of the high loss rate of threshing devices during the mechanical harvesting of ratoon rice, we propose a method using the principle of rigid–flexible coupling in this paper to reduce losses. Through analysis of the forces and collisions on ratoon rice grains during the threshing process, it has been confirmed that changing the structure and materials of the threshing contact components can effectively reduce grain loss. A rigid–flexible coupling rod tooth was designed, and the overall structural parameters of the device were determined based on force analysis results and d

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Tao, Meng Lun, Yuan Zhuang, Ding Fang Chen, Seyit O. Ural, Quan Guo Lu, and Kenji Uchino. "Derivation of Magnetostrictive Losses from Admittance Spectra." Advanced Materials Research 490-495 (March 2012): 922–26. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.922.

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There are three types of losses for magnetostrictors, elastic loss, magnetic loss and piezomagnetic coupling loss, similar to the loss mechanism of a piezoelectric (elastic, dielectric and piezoelectric losses) that our group has established recent years. By introducing these losses factors we can characterize magnetostrictive losses using complex parameters. Here we derived the relationship of mechanical quality factors and losses factor based on admittance spectra expression we have established previously. By measuring accurately the mechanical quality factors QA for the resonance and QB for

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Nieradka, Paweł, and Andrzej Dobrucki. "A Modification of the Monte Carlo Filtering Approach for Correcting Negative SEA Loss Factors." Acoustics 4, no. 4 (2022): 1028–44. http://dx.doi.org/10.3390/acoustics4040063.

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Monte Carlo Filtering (MCF) is one of the methods of Experimental Statistical Energy Analysis (E-SEA), which allows the correction of negative LFs (Loss Factors). In this article, a modification of the MCF method, called DESA (Diagonal Expansion of the Search Area), is proposed. The technique applies a non-uniform extension of the search area when generating a population of normalized energy matrices. The degree of expansion of the search area is controlled by the Diagonal Penalty Factor (DPF). The authors demonstrated the method’s effectiveness on a system that could not be identified in seve

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Li, Ruiqi. "Coupling quantum emitters in metal–insulator–metal heterostructure: Green tensor approach in the quasi-static limit." AIP Advances 12, no. 8 (2022): 085310. http://dx.doi.org/10.1063/5.0102674.

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Coupling between quantum emitters (QEs) has been a topic extensively explored in recent years. Theoretical models based on the Lindblad master equation and mapping to cascaded quantum system has shed light to the chiral coupling phenomena from the aspect of microscopic quantum electrodynamics. Different from dissipative systems investigated in previous literature, we investigate the QE–QE coupling in Hermitian and pseudo-Hermitian systems by considering a multi-layered metal–insulator–amplifying metal heterostructure that represents the two kinds of system by adjusting the damping factor of th

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Mao, Jie, Zhi Yong Hao, Xin Rui Chen, and Ji Yang. "The Application of SEA in Automobile Dash Sound Transmission Loss Numerical Calculation." Applied Mechanics and Materials 152-154 (January 2012): 894–99. http://dx.doi.org/10.4028/www.scientific.net/amm.152-154.894.

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In order to study the structure-borne sound radiation, statistical energy analysis (SEA) was adopted and an automobile dash was divided into 31 subsystems; the modal density, damping loss factor (DLF) and coupling loss factor (CLF) were acquired, which were the basic parameters of SEA; then dash transmission loss (TL) at the middle and high frequency (MHF) ranging from 100 Hz to 10k Hz was calculated. The most outstanding advantage of SEA was that calculation could be fast done, which was more convenient than FEM (Finite Element Method) and BEM (Boundary Element Method). Finally, a TL experime

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Sun, Yu, Xu Zhang, Sheng Wu, et al. "Magnetomechanical Properties of Fe-Si-B and Fe-Co-Si-B Metallic Glasses by Various Annealing Temperatures for Actuation Applications." Sensors 23, no. 1 (2022): 299. http://dx.doi.org/10.3390/s23010299.

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Fe-based amorphous alloys have advantages of low iron loss and high effective permeability, which are widely used in sensors and actuators. Power efficiency is one of the most important indicators among power conversion applications. We compared the magnetomechancial power conversion factors of metallic glassy ribbons FeCoSiB (Vitrovac 7600) and FeSiB (Metglas 2605SA1). We investigated the crystallization process under different annealing temperatures and tested the magnetomechancial coupling factors (k) and quality factors (Q) by using resonant and anti-resonant methods. We found that the max

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Crovetti, Paolo, and Francesco Musolino. "Interference of Spread-Spectrum EMI and Digital Data Links under Narrowband Resonant Coupling." Electronics 9, no. 1 (2020): 60. http://dx.doi.org/10.3390/electronics9010060.

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In this paper, the effects of electromagnetic interference (EMI) coupled to a radio-frequency (RF) communication channel by resonant mechanisms are investigated and described in the framework of Shannon information theory in terms of an equivalent channel capacity loss so that to analyze and compare the effects of non-modulated and random Spread Spectrum (SS) modulated EMI. The analysis reveals a higher EMI-induced capacity loss for SS-modulated compared to non modulated EMI under practical values of the quality factor Q, while a modest improvement in the worst case capacity loss is observed o

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