Results 211 to 220 of about 344,259 (263)
Effect of rolling surface texture on bearing friction pairs lubrication. [PDF]
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Forces in the Main Bearings of Multicylinder Engines
SAE Technical Paper Series, 1966<div class="htmlview paragraph">The conventional methods of computing the main-bearing forces result only in a rough approximation of the actual bearing loads. The reasons for the deviations between measured and calculated loads are investigated.
W. Gross, A. W. Hussmann
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Probabilistic Main Bearing Performance for an Internal Combustion Engine
Journal of Tribology, 2004Abstract A probabilistic analysis is presented for studying the variation effects on the main bearing performance of an I.C. engine system, under structural dynamic conditions. For computational efficiency, the probabilistic analysis is based on surrogate models (metamodels), which are developed using the kriging method.
Zissimos P. Mourelatos +4 more
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The evolution of the science of Bear Brook Watershed in Maine, USA
Environmental Monitoring and Assessment, 2010The Bear Brook Watershed in Maine (BBWM), USA is a paired watershed study with chemical manipulation of one watershed (West Bear = WB) while the other watershed (East Bear = EB) serves as a reference. Characterization of hydrology and chemical fluxes occurred in 1987-1989 and demonstrated the similarity of the ca.
S A, Norton +5 more
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Failure Analysis of a Helicopter's Main Rotor Bearing
Key Engineering Materials, 2012Presented results report some of the findings of a detailed failure analysis carried out on a main rotor hub assembly, which had symptoms of burning and mechanical damage. The analysis suggests environmental degradation of the grease which causes pitting on bearing-balls.
M. Shahzad +4 more
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The Bear Brook Watershed, Maine (BBWM), USA
Environmental Monitoring and Assessment, 1999The Bear Brook Watershed Manipulation project in Maine is a paired calibrated watershed study funded by the U. S. EPA. The research program is evaluating whole ecosystem response to elevated inputs of acidifying chemicals. The project consists of a 2.5 year calibration period (1987–1989), nine years of chemical additions of (NH4)2SO4 (15N- and 34S ...
S. Norton +10 more
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Investigation of Main Bearing Friction in a Diesel Engine
SAE Technical Paper Series, 1989<div class="htmlview paragraph">To improve both the durability and reliability of the main bearing, and also to reduce friction, a technique was developed to measure transient sliding friction of main bearings in a firing engine. The movement of bearing pin was also measured at same time to analyze the relationship between friction ...
Akinori Miura, Keiji Shiraishi
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Recent Developments in Main and Connecting-Rod Bearings
SAE Technical Paper Series, 1934<div class="htmlview paragraph"><b>MR. SPARROW states that the widespread use of babbitt as a bearing material may be due to the fact that metal-to-metal contact over a small portion of the surface causes the material to soften and crush without damaging the journal or communicating sufficient heat to the remainder of the bearing to destroy
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An analytic approach to monitor main bearing health
Life Cycle Reliability and Safety Engineering, 2019In piston engines, failure of main bearings can lead to total engine failure causing huge financial as well as reputation costs for the organization. In this paper, an end-to-end analytic system, using data and domain, is described to develop a cumulative damage model to monitor the health of the main bearing using data obtained from engine lube oil ...
Tapan Shah +2 more
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