Results 231 to 240 of about 34,568 (304)
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Theoretical and experimental analysis of the preload degradation of double-nut ball screws
, 2020In most applications, preload is applied to double-nut ball screws to improve the positioning accuracy and rigidity. However, the applied preload degrades owing to wear, which lowers the positioning accuracy of the ball screws, and thus affects the ...
Zhou Huaxi +3 more
semanticscholar +1 more source
Critical Care Clinics, 2010
Hypotension and shock are important issues confronting the intensivist. Volume overload can have dire consequences such as decreased gas exchange and increased myocardial dysfunction. This article explores dynamic means of determining preload responsiveness.
T Miko, Enomoto, Louise, Harder
openaire +2 more sources
Hypotension and shock are important issues confronting the intensivist. Volume overload can have dire consequences such as decreased gas exchange and increased myocardial dysfunction. This article explores dynamic means of determining preload responsiveness.
T Miko, Enomoto, Louise, Harder
openaire +2 more sources
Effects of preload deficiency on fatigue demands of wind turbine tower bolts
, 2020This paper investigates the effect of bolt preload level on fatigue damage in eccentrically loaded bolts of ring flange connections, which are commonly utilized in wind turbine towers.
B. B. Ajaei, S. Soyoz
semanticscholar +1 more source
Engineering structures, 2020
Thin-walled square and circular hollow steel tubes are designed to support the permanent and construction loads of several upper composite floors before filling the concrete into the tubes to form concrete-filled double steel tubular (CFDST) columns. The
Mizan Ahmed, Q. Liang, V. Patel, M. Hadi
semanticscholar +1 more source
Thin-walled square and circular hollow steel tubes are designed to support the permanent and construction loads of several upper composite floors before filling the concrete into the tubes to form concrete-filled double steel tubular (CFDST) columns. The
Mizan Ahmed, Q. Liang, V. Patel, M. Hadi
semanticscholar +1 more source
, 2020
The present research investigates the mechanism of bolt pretightening and preload relaxation in composite interference-fit joint structures under thermal effects.
Junshan Hu +3 more
semanticscholar +1 more source
The present research investigates the mechanism of bolt pretightening and preload relaxation in composite interference-fit joint structures under thermal effects.
Junshan Hu +3 more
semanticscholar +1 more source
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2019
Sufficient preload in a bolted joint is key to ensuring the reliability of mechanical products; however, under vibration, preload decrease often occurs. The mechanism of preload decrease has not yet been fully clarified.
Hao Gong, Xiaoyu Ding
exaly +2 more sources
Sufficient preload in a bolted joint is key to ensuring the reliability of mechanical products; however, under vibration, preload decrease often occurs. The mechanism of preload decrease has not yet been fully clarified.
Hao Gong, Xiaoyu Ding
exaly +2 more sources
Diabetes, obesity and metabolism, 2019
To evaluate the effects of 12 weeks of treatment with a whey/guar preload on gastric emptying, postprandial glycaemia and glycated haemoglobin (HbA1c) levels in people with type 2 diabetes (T2DM).
L. Watson +9 more
semanticscholar +1 more source
To evaluate the effects of 12 weeks of treatment with a whey/guar preload on gastric emptying, postprandial glycaemia and glycated haemoglobin (HbA1c) levels in people with type 2 diabetes (T2DM).
L. Watson +9 more
semanticscholar +1 more source
Journal of constructional steel research, 2019
Preload relaxation, caused by elastic interaction between tightened bolts, is one of the major reasons for non-uniformity of pretension force. But how to accurately assess the residual tension of a bolt is still extremely difficult.
Ying Li +4 more
semanticscholar +1 more source
Preload relaxation, caused by elastic interaction between tightened bolts, is one of the major reasons for non-uniformity of pretension force. But how to accurately assess the residual tension of a bolt is still extremely difficult.
Ying Li +4 more
semanticscholar +1 more source
Effect of preload on ball-raceway contact state and fatigue life of angular contact ball bearing
Tribology International, 2017Jinhua Zhang, Bin Fang, Yongsheng Zhu
exaly +2 more sources