標題: Titlebook [打印本頁] 作者: Heel-Spur 時間: 2025-3-21 17:43 作者: 傲慢物 時間: 2025-3-21 22:47 作者: 背信 時間: 2025-3-22 03:11 作者: jaundiced 時間: 2025-3-22 06:57 作者: scotoma 時間: 2025-3-22 12:04
Active Noise Control Experiment Minimising Radiation of Active Energy,thm contains an adaptive feed-forward scheme for the amplitude of the control signal and an approach to compensate phase deviations. The ANS is tested in a configuration with two primary and two secondary loudspeakers.作者: 殺人 時間: 2025-3-22 16:30
Reduction of Radiating Sound from CFRP Laminated Plates with Orthotropy, mode shape at specific frequency. Then based on the FE model of the CFRP plate, a small CFRP patch with optimum anisotropy is designed to attach for effective reduction of the sound and finally its performance is verified in experiment.作者: 殺人 時間: 2025-3-22 17:30
Exploiting Continuous Scanning Laser Doppler Vibrometry and Wavelet Processing for Damage Detectionnd area scans are analysed, considering also the influence of measurement noise. The method shows promising results, since cracks are identified in all severity conditions. An example on a sub-surface defect on a carbon-fiber panel is also presented.作者: 生意行為 時間: 2025-3-23 00:30 作者: 傳染 時間: 2025-3-23 03:18 作者: Virtues 時間: 2025-3-23 07:55 作者: BOLUS 時間: 2025-3-23 10:39
https://doi.org/10.1007/978-3-642-30586-3fixed points, was derived. The equivalent modal parameters, which represent the dynamic properties of rotating disc suffering moving loads, were studied. Because of rotating, each mode of the disc split to two complex modes and becomes the superposition of two travelling waves. The conclusion agrees with those from analytical method.作者: exigent 時間: 2025-3-23 16:35 作者: 無聊點好 時間: 2025-3-23 21:30 作者: paradigm 時間: 2025-3-24 02:00
https://doi.org/10.1007/978-1-4757-5647-0 We have shown that the wave velocity in the mechanically clamped area is significantly lower than that in a stress free bar. This paper presents the experimental results and analytical modeling of the effect of radial confinement on dynamic response in bars.作者: Insatiable 時間: 2025-3-24 06:24 作者: 小平面 時間: 2025-3-24 08:57 作者: 禍害隱伏 時間: 2025-3-24 13:06 作者: INCH 時間: 2025-3-24 16:23
Estimation of Bending Compliance (Stiffness) from Free-Free FRF Measurements: eBCF Theory,ocations. The traditional, static bending test requires extensive instrumentation and a two day test procedure while the eBCF method involves minimal instrumentation over several hours. The theoretical background is presented along with both modeling and experimental cases involving a rectangular plate structure.作者: 卡死偷電 時間: 2025-3-24 21:14 作者: 莎草 時間: 2025-3-24 23:27 作者: 皮薩 時間: 2025-3-25 04:37
Whakakapi (Bringing Together) Discussion,del capable of utilizing experimentally measured transmission error as the realistic excitation mechanism. This study also enables creation of an extensive database of dynamic response spectra of gear pairs under the influence of spacing errors that will later be utilized for investigating the diagnostics of gear pairs.作者: ELATE 時間: 2025-3-25 11:14
https://doi.org/10.1007/978-3-030-65540-2hat, throughout a drilling process, the control system will measure the modal frequencies and adjust accordingly. The results of this study can lead to the production of drilling devices that minimally disturb the drilled object and produce superior surface finish.作者: 生意行為 時間: 2025-3-25 15:19
Iván Artero,José Rodríguez,José J. Mu?ozolves minimal instrumentation over several hours. Added masses can be utilized to acquire additional statistical data that estimates the same compliance (stiffness). The theoretical background is presented along with both modeling and experimental cases involving a rectangular plate structure作者: 驕傲 時間: 2025-3-25 16:19
A Computational Model to Investigate the Influence of Spacing Errors on Spur Gear Pair Dynamics,del capable of utilizing experimentally measured transmission error as the realistic excitation mechanism. This study also enables creation of an extensive database of dynamic response spectra of gear pairs under the influence of spacing errors that will later be utilized for investigating the diagnostics of gear pairs.作者: 洞穴 時間: 2025-3-25 20:47 作者: 尖叫 時間: 2025-3-26 02:27
Estimation of Torsional Compliance (Stiffness) from Free-Free FRF Measurements: eRCF Theory,olves minimal instrumentation over several hours. Added masses can be utilized to acquire additional statistical data that estimates the same compliance (stiffness). The theoretical background is presented along with both modeling and experimental cases involving a rectangular plate structure作者: 浮雕寶石 時間: 2025-3-26 07:54 作者: 懸掛 時間: 2025-3-26 10:42
Drill Vibration Suppression Through Phase-Locked Loop Control, string operations, and explosives neutralization. This research seeks to prototype a rotating drill that actively suppresses the vibrations transmitted to the drilling target. The dynamics of the uncontrolled drilling system are first modeled in the axial direction of the drill tool. Then a phase-l作者: collagen 時間: 2025-3-26 15:08 作者: Systemic 時間: 2025-3-26 18:34
Experimental Acoustic Modal Analysis of an Automotive Cabin,e passenger compartment. Therefore, an ever increasing interest exists to predict the interior acoustic behavior by means of accurate simulation models both to improve the vehicle NVH performance and to reduce the development cycle for new products. Nevertheless, nowadays the level of accuracy of su作者: Wallow 時間: 2025-3-26 23:01 作者: majestic 時間: 2025-3-27 01:59 作者: 肉身 時間: 2025-3-27 07:14 作者: 恩惠 時間: 2025-3-27 11:03 作者: upstart 時間: 2025-3-27 14:53
Reduction of Radiating Sound from CFRP Laminated Plates with Orthotropy,vestigations are needed. In order to grasp the vibration and acoustic feature of flat and curved CFRP laminated plates with orthotropy, the difference from isotropic material such as steel is clarified using experimental modal analysis. As a result CFRP is found to possess a dominant radiating sound作者: 改變 時間: 2025-3-27 19:45
Rotating Disc Model for Complex Eigenvalue Analysis of Brake Squeal, fixed and there are sliding contact between the pads and the disc. In the most common used complex eigenvalue analysis method, the moving load nature was normally ignored. In this paper a modal based rotating disc model is purposed. Modal parameters of stationary disc were calculated from finite el作者: Harbor 時間: 2025-3-28 01:54 作者: Deference 時間: 2025-3-28 03:49 作者: Repatriate 時間: 2025-3-28 07:45
An Estimation of Torsional Compliance (Stiffness) from Free-Free FRF Measurements: eRCF Applicationasured frequency response functions (FRFs) from a structural system with free-free boundary conditions. The eRCF is estimated using FRF measurements from impact testing, namely a four by four (4?×?4) FRF matrix at four separate, symmetric locations on a structure. A companion paper presents the comp作者: Graves’-disease 時間: 2025-3-28 10:47
Estimation of Bending Compliance (Stiffness) from Free-Free FRF Measurements: eBCF Theory,d frequency response functions (FRFs) from a structural system with free-free boundary conditions. The eBCF is estimated using FRF measurements involving impact testing that involve obtaining a six by six (.) FRF matrix at six separate, symmetric locations on a structure. This is in contrast to trad作者: exclusice 時間: 2025-3-28 16:32
In-Situ Experimental Modal Analysis of a Direct-Drive Wind Turbine Generator,It is supposed to be light weight and at the same time stiff enough to minimize deformation of the rotor outer surface caused by electro-magnetic forces in the air gap. Reducing weight without compromising the stability and stiffness of the generator requires an in-depth analysis of the dynamic beha作者: Anthropoid 時間: 2025-3-28 19:42 作者: 階層 時間: 2025-3-28 22:57 作者: oblique 時間: 2025-3-29 03:34 作者: Ingratiate 時間: 2025-3-29 10:27 作者: AFFIX 時間: 2025-3-29 14:55 作者: 無法治愈 時間: 2025-3-29 18:04 作者: superfluous 時間: 2025-3-29 23:21
Marcelo C. Borba,Rúbia B.A. Zulattorotor and stator. They cause undesirable lateral vibrations in induction motors during their operation. The vibration can be minimized by careful selection of balancing planes that are required to keep vibrations low at various operating speeds in the case of an induction motor rotor. It is importan作者: 效果 時間: 2025-3-30 02:31
https://doi.org/10.1007/978-3-319-90659-1e passenger compartment. Therefore, an ever increasing interest exists to predict the interior acoustic behavior by means of accurate simulation models both to improve the vehicle NVH performance and to reduce the development cycle for new products. Nevertheless, nowadays the level of accuracy of su作者: affinity 時間: 2025-3-30 07:50
Edmund V. O’Sullivan,Marilyn M. Taylor. The use of the Principal Component Analysis (PCA) principle, combined with a Generalized Inverse Beamforming (GIBF) technique, offers the possibility to resolve complex and partially correlated sound sources distributions..Despite very promising, this approach appears still to be optimized and the作者: 得罪人 時間: 2025-3-30 11:33
Fostering Ways-of-Giving Within Communitiesise system (ANS). The ANS has two accelerometers and one microphone per secondary speaker. The microphone is located in the near sound field of the secondary loudspeaker. One accelerometer is fixed onto the loudspeaker cone. The other accelerometer is attached to the noise source. The control algori作者: 凝視 時間: 2025-3-30 16:18
Tone Dyrdal Solbrekke,Ciaran Sugruefixed frequency is stable to some extent measured at the position of error microphone, by producing the some amplitude wave with negative phase through the secondary source (the active control speaker), the noise at the position of error microphone will be greatly reduced. To reduce more than one po作者: 掙扎 時間: 2025-3-30 20:02
Learning Transformational Leadershiption comfort in wooden-based buildings is, however, still a challenging task. Wood is high in both strength and stiffness in relation to its weight, but its variability has repercussions on how sound propagates, this triggering sound insulation problems. Even if buildings comply with present-to-day 作者: 推測 時間: 2025-3-30 22:09
Identities, Pathologies and Power Relations,vestigations are needed. In order to grasp the vibration and acoustic feature of flat and curved CFRP laminated plates with orthotropy, the difference from isotropic material such as steel is clarified using experimental modal analysis. As a result CFRP is found to possess a dominant radiating sound作者: Exuberance 時間: 2025-3-31 01:13
https://doi.org/10.1007/978-3-642-30586-3 fixed and there are sliding contact between the pads and the disc. In the most common used complex eigenvalue analysis method, the moving load nature was normally ignored. In this paper a modal based rotating disc model is purposed. Modal parameters of stationary disc were calculated from finite el作者: paroxysm 時間: 2025-3-31 05:17
Introduction to VMware Workstation Pro,easonable accuracy is in urgent need. In this paper, a two stage validation method of closed-loop coupling disc brake model for squeal analysis using complex eigenvalue analysis is presented. At component level, finite element (FE) models are verified through the comparison of FE calculation and mod作者: Heart-Attack 時間: 2025-3-31 12:31 作者: AXIOM 時間: 2025-3-31 14:59 作者: 分離 時間: 2025-3-31 21:02 作者: 跳動 時間: 2025-3-31 23:05
https://doi.org/10.1007/978-94-6209-119-1It is supposed to be light weight and at the same time stiff enough to minimize deformation of the rotor outer surface caused by electro-magnetic forces in the air gap. Reducing weight without compromising the stability and stiffness of the generator requires an in-depth analysis of the dynamic beha作者: 逗留 時間: 2025-4-1 02:00
https://doi.org/10.1007/978-1-4757-5647-0ditions. In order to establish a basic understanding of changing boundary conditions, we examine the wave propagation through a bar subject to mechanical confinement. The Air Force Research Laboratory has conducted several experiments investigating the effect of non-traditional boundary conditions, 作者: Watemelon 時間: 2025-4-1 06:18 作者: entrance 時間: 2025-4-1 11:59
Anna Mikkola,Kristiina Kumpulainen and the feature extraction capabilities of wavelet-domain processing. Superficial defects are analysed in the paper. The damage detection procedure is presented and its performances studied in a simulated application on a plate with different crack scenarios (varying crack depth ratio). Both line a作者: 樹上結蜜糖 時間: 2025-4-1 14:39
