Present problems of vibration isolation in heavy mining machines at long-term cyclic loads
نویسندگان
چکیده
منابع مشابه
the effects of keyword and context methods on pronunciation and receptive/ productive vocabulary of low-intermediate iranian efl learners: short-term and long-term memory in focus
از گذشته تا کنون، تحقیقات بسیاری صورت گرفته است که همگی به گونه ای بر مثمر ثمر بودن استفاده از استراتژی های یادگیری لغت در یک زبان بیگانه اذعان داشته اند. این تحقیق به بررسی تاثیر دو روش مختلف آموزش واژگان انگلیسی (کلیدی و بافتی) بر تلفظ و دانش لغوی فراگیران ایرانی زیر متوسط زبان انگلیسی و بر ماندگاری آن در حافظه می پردازد. به این منظور، تعداد شصت نفر از زبان آموزان ایرانی هشت تا چهارده ساله با...
15 صفحه اولVibration Isolation Treatments for Coordinate Measuring Machines
This paper was presented at: • SME (Society of Manufacturing Engineers), June 1993, Nashville, Tenn • International Conference on Structural Dynamics, Vibration, Noise, and control, December 1995, Hong Kong. • InterNoise ’96 (1996 International Congress on Noise Control Engineering), August 1996, Liverpool, U.K. • This paper is also printed in “Mfg.”, which is the Brown and Sharpe in-house tech...
متن کاملLong-term stability analysis of goaf area in longwall mining using minimum potential energy theory
Estimation of the height of caved and fractured zones above a longwall panel along with the stability conditions of the goaf area are very crucial to determine the abutment stresses, ground subsidence, and face support as well as designing the surrounding gates and intervening pillars. In this work, the height of caving-fracturing zone above the mined panel is considered as the height of destre...
متن کاملOn Vibration Problems With Discretely Distributed Loads-A Rigorous Formalism
Three problems in simple vibration theory are treated, the longitudinal vibration of a prismatic bar, the lateral vibration of a beam, and the vibration of a circular plate, each with arbitrarily placed discrete loads. It is shown that with the appropriate definition of an inner product on a Hilbert space the spatial differential operator may be made selfadjoint with all of the formal advantage...
متن کاملSpinal Loads of Seated Body in Vibration
Trunk biomechanical models play an indispensable role in predicting muscle forces and spinal loads under whole-body vibration (WBV) exposures. Earlier measurements on the force-motion biodynamic response (impedance, apparent mass) at the body-seat interface and vibration transmissibility (seat to head) have led to the development of different mechanical models. Such models could simulate the ov...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: E3S Web of Conferences
سال: 2020
ISSN: 2267-1242
DOI: 10.1051/e3sconf/202016800042