A Numerical Analysis of Ground Vibration Induced .Traduire cette page

    Lopes predicted the source strength and the vibration received by surrounding buildings using a numerical method and adopted the method to research the vibration impact from subway operation and the induced vibration on houses. The trains were modeled as rigid multibodies, the track-tunnel-soil system used a 2.5D model, and the buildings used a 3D model. The study showed that the soil ...

Get Price
    Implication of vibration induced nystagmus in .Traduire cette page

    Implication of vibration induced nystagmus in Meniere's disease Sung Kwang Hong, Ja Won Koo, Ji Soo Kim, Min Hyun Park Otorhinolaryngology-Head & Neck Surgery

Get Price
    Vibration-Induced Postural Posteffects | Journal of ...Traduire cette page

    Furthermore, Feldman and Latash (1982a) showed that kinesthetic illusions and vibration-induced reflex activity also can be reversed by auditory stimulation and that switching is dependent on the subject's attention, indicating involvement of both reflex and supraspinal pathways in mechanisms responsible for such transitions.

Get Price
    Adaptation of vibration-induced postural sway in ...Traduire cette page

    Postural reactions to soleus muscle vibration were explored in 8 PD patients, 8 healthy elderly, and 8 young adults. Postural sway was recorded using an electromagnetic motion analysis system in four conditions (2 vision×2 vibration) with four trials in each condition to test subjects' adaptation to the vibrator stimulus. The results showed that PD patients did adapt to the vibration across ...

Get Price
    Spiral: Vortex-induced vibration of a wavy elliptic .Traduire cette page

    Vortex-induced vibration (VIV) of a wavy elliptic cylinder is investigated by mean of experiments in a water channel in the range of Reynold number between 1,500 to 15,000. Results are compared with those for a plain circular cylinder of equivalent diameter with a combined mass–damping parameter of 0.018. Curves of displacement and frequency of vibration showed that the hydroelastic ...

Get Price
    Vibration-induced neuropathy in the hand - Lund .Traduire cette page

    Morphologically, the dorsal interosseous nerve in vibration-exposed patients showed demyelination in various stages of development, endoneurial and perineurial fibrosis, and loss of axons. The results of this study underline the importance of the neurological component of vibration-induced injury. Subjectively experienced and objectively shown, it may severely interfere with hand function ...

Get Price
    Investigation of vibration induced by moving .Traduire cette page

    Some papers studied the platform improvement to reduce vibration for high-tech buildings. 6 –15 Yang and Xu 6 studied an active platform to keep high tech equipment free from micro-vibration induced by traffic disturbance, where a platform was installed on a building floor through an active control actuator and a passive mount to stop floor vibration to transfer to the platform.

Get Price
    The influence of vibration on seated human .Traduire cette page

    30/01/2016 · This induced-drowsiness caused by vibration influenced the volunteers' ability to respond quickly to visual stimuli. Another significant finding to emerge from this study is that PVT showed high levels of sensitivity to whole body vibration-induced changes in human drowsiness.

    Lieu : 8600 Rockville Pike, Bethesda, MD
Get Price
    Vibration Induced Fatigue | Response DynamicsTraduire cette page

    Vibration induced fatigue, and fatigue failure, are dependent on a number of parameters that should all be considered at the start of an investigation into a fatigue issue. As vibration consultants, with expertise in structural dynamics, we are often asked to both asses fatigue risks in design, as well as analyze fatigue failure when it occurs. Stress level, number of cycles, geometry, and ...

Get Price
    Some Characteristics of Human Body Surface Vibration ... · Fichier PDF

    Our results showed no clear evidence of the effect of posture or bilateral asymmetry in the noise-induced vibration. We found that the noise-induced vibrations measured at the chest and abdomen were correlated negatively with the body fat percentage. Key words Low frequency noise, Human body vibration, Body surface, Vibration acceleration level, Linear system, Posture, Bilateral asymmetry ...

Get Price
    Evaluation of Acoustic- and Flow-Induced Vibration of the ... · Fichier PDF

    Evaluation of Acoustic- and Flow-Induced Vibration of the BWR Main Steam Lines and Dryer Ryo MORITA 1; 2, Shiro TAKAHASHI, Keita OKUYAMA2, Fumio INADA, Yukio OGAWA 3and Kazuhiro YOSHIKAWA 1Central Research Institute of Electric Power Industry, 2-11-1 Iwado Kita, Komae-shi, Tokyo 201-8511, Japan 2, Ltd. Energy & Environmental Systems Laboratory, 7-2-1 Omika-cho, .

Get Price
    Friction Induced Vibration: Brake Moan - SAE .Traduire cette page

    Friction Induced Vibration: Brake Moan 951095. Techniques have been developed to model friction induced vibration and these were applied to the brake moan of a vehicle. A vehicle system model and the MSC/NASTRAN solutions for geometric nonlinear and complex modes were modified by DMAP for friction input. To assess stability, a position of steady sliding equilibrium was found. Then a complex ...

Get Price
    Vibration Induced Fatigue | Response DynamicsTraduire cette page

    Vibration induced fatigue, and fatigue failure, are dependent on a number of parameters that should all be considered at the start of an investigation into a fatigue issue. As vibration consultants, with expertise in structural dynamics, we are often asked to both asses fatigue risks in design, as well as analyze fatigue failure when it occurs. Stress level, number of cycles, geometry, and ...

Get Price
    Vibration Analysis Explained | Reliable PlantTraduire cette page

    The initial assessment of the fan unit showed the unit to run normally when one fan was running, but once the second fan was turned on, vibration issues presented themselves at certain set points. Vibration analysis revealed that once fan No. 2 was turned on, a slight increase in vibration amplitude across all three points of measurement occurred, while fan No. 1 remained the same.

Get Price
    Vibration-Induced Nystagmus – A Sign of Unilateral ... · Fichier PDF

    vibration-induced nystagmus reflects a side difference of peripheral vestibular excitability. Introduction Strictly speaking, vibrations are periodic movements within an unlimited frequency frame. Because of their omnipresence, a human being is permanently exposed to mechanical vibrations. In order to perceive vibration stimuli, human beings as well as many animals have mechanosensors in the ...

Get Price
    Vibration fatigue - WikipediaTraduire cette page

    Vibration fatigue is a mechanical engineering term describing material fatigue, caused by forced vibration of random nature. An excited structure responds according to its natural-dynamics modes, which results in a dynamic stress load in the material points. The process of material fatigue is thus governed largely by the shape of the excitation profile and the response it produces.

Get Price
    Flow-induced vibration (Book) | OSTI.GOVTraduire cette page

    Flow-induced vibration is a term to denote those phenomena associated with the response of structures placed in or conveying fluid flow. More specifically, the terra covers those cases in which an interaction develops between fluid-dynamic forces and the inertia, damping or elastic forces in the structures. The study of these phenomena draws on three disciplines: (1) structural mechanics, (2 ...

Get Price
    Low frequency vibration induced streaming in a Hele-Shaw cell · Fichier PDF

    lower forcing frequency, they showed that large-scale flows could be generated within tanks of tens of centimeters size, ... Vibration-induced streaming is a mean flow that arises from Reynolds stresses under wave propagation15 and compressibility. That is, vibration-induced streaming is a second order effect that can be seen only at time scales greater than the period of the harmonic forcing ...

Get Price
    Research on the influence of the normal vibration on the ... · Fichier PDF

    R ESEARCH ON THE INFLUENCE OF THE NORMAL VIBRATION ON THE FRICTION-INDUCED VIBRATION OF THE WATER-LUBRICATED STERN BEARING. Y ONG JIN, T IANYANG D ENG, Z HENGLIN L IU, JIANHUI Z HOU ISSN P RINT 1392-8716, ISSN O NLINE 2538-8460, K AUNAS, L ITHUANIA 763 the singing sound also came. The singing sound test of water-lubricated rubber stern bearing, conducted by Y Z TIAN, et al. [7], showed .

Get Price
    Prediction of low level vibration induced settlement · Fichier PDF

    of the vibration induced, in-situ settlement of sands. INTRODUCTION Vibrations from cyclic and dynamic loadings are important primarily due to their potential to cause damage to structures. In the urban environment, most attention is focused on vibrational effect on underground utilities and multi-story buildings and the problems associated with low-level, man-made vibrations such as those ...

Get Price
    The Effects of Muscle Vibration on Anticipatory .Traduire cette page

    During vibration, dorsal and ventral muscles showed increased excitation and inhibition during APAs, respectively. An additional analysis of APAs at a joint level, has shown that in both tasks, an index related to the co-activation of agonist-antagonist muscle pairs (C-index) was modulated with touch, vibration, and stability particularly in leg muscles. Small changes in the other index ...

Get Price
  • sand castings professional
  • talc grinding obtain
  • high frequency limestone
  • feeder breaker engineering
  • moreRelated Products