Theoretical, numerical, and experimental studies on friction vibration of marine water-lubricated bearing coupled with lateral vibration
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DOI: 10.1007/s00773-019-00634-3
Abstract: This paper presents a study on the interaction of lateral vibration and friction vibration of a marine water-lubricated bearing when the bearing and stern shaft journal contact. The coupled vibration modes were modeled innovatively to… read more here.
Keywords: lateral vibration; marine water; vibration; friction vibration ... See more keywords
Downhole vibration causing a drill collar failure and solutions
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DOI: 10.1016/j.ngib.2017.07.013
Abstract: Abstract In large borehole drilling of some blocks or formations, due to serious downhole vibration, fatigue failure of a drill collar occurs frequently and most washouts and fractures are in thread root. An analysis of… read more here.
Keywords: lateral vibration; vibration; resonance; drill collar ... See more keywords
Experimental study and mechanism analysis of the motion states of bottom hole assembly during rotary drilling
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2020.107859
Abstract: Abstract Lateral vibration of bottom hole assembly (BHA) severely affects the drilling efficiencies of downhole tools and even leads to downhole accidents. To further study the lateral motion states of BHA during rotary drilling, a… read more here.
Keywords: motion; mechanism; rotary drilling; lateral vibration ... See more keywords
Lateral vibration control of a precise machine using magneto-rheological mounts featuring multiple directional damping effect
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DOI: 10.1088/1361-665x/aaad9e
Abstract: In a previous work, magneto-rheological (MR) dampers were originally designed and implemented for reducing the vertical low-frequency vibration occurring in precise semi-conductor manufacturing equipment. To reduce the vibrations, an isolator levitated the manufacturing machine from… read more here.
Keywords: lateral vibration; vibration control; vibration; control ... See more keywords
Modeling and Second-Order Sliding Mode Control for Lateral Vibration of High-Speed Train With MR Dampers
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Intelligent Transportation Systems"
DOI: 10.1109/tits.2021.3090049
Abstract: The lateral vibration of high-speed train reduces the ride stability and passenger comfort. Semi-active suspension system is often adopted to suppress the lateral vibration of trains due to its low cost and low energy consumption… read more here.
Keywords: high speed; vibration high; train; vibration ... See more keywords
Nonlinear Stochastic Analysis for Lateral Vibration of Footbridge under Pedestrian Narrowband Excitation
Sign Up to like & getrecommendations! Published in 2017 at "Mathematical Problems in Engineering"
DOI: 10.1155/2017/5967491
Abstract: During the lateral vibration of footbridge, the pedestrian lateral load shows two distinct features: one is the vibration-dependency; another is the narrowband randomness caused by the variability between two subsequent walking steps. In this case,… read more here.
Keywords: nonlinear stochastic; lateral vibration; vibration; vibration footbridge ... See more keywords
Study of Lateral Vibration of Drilling String with Mass Imbalance Using Finite Element
Sign Up to like & getrecommendations! Published in 2019 at "International Journal on Advanced Science, Engineering and Information Technology"
DOI: 10.18517/ijaseit.9.3.4478
Abstract: The objectives of this study were to analyze the first three critical frequency, critical speeds and mode shapes of the drilling string due to lateral vibration. Drilling string vibrations pose a major challenge to the… read more here.
Keywords: drilling string; imbalance; lateral vibration; mass imbalance ... See more keywords