Exact(1)
The spectrum of radiation noise of different components under various rotation speeds are used as the basis of assessing the contribution of different eigenfrequencies on the radiation noise of the components, and the proportion of friction noise and impact noise is evaluated as well.
Similar(59)
The aim is to know the proportion of the friction moment caused by each frictional source in the bearing's total friction moment, which is helpful to optimize the bearing design to deduce the friction moment.
At the onset of each oscillatory motion, the proportion of the friction moment caused by cage in the bearing's total friction moment was very high, and it increased with the increasing speed.
However, any single study is unlikely to provide a full picture of the needed proportion of studded tyres for sufficient friction, given that road conditions keep changing and there are other factors affecting friction as well.
Tuononen and Sainio [14] themselves examined the effects of the proportion of studded tyres on the friction of an icy test track.
Compared to the results of Tuononen and Sainio [14], our results suggest a somewhat higher proportion of studded tyres for adequate friction on wintry road surfaces, although the range suggested by Tuononen and Sainio includes 50% of vehicles with studded tyres.
The developed coatings exhibit appreciable increase in hardness, wear resistance and coefficient of friction (COF) with increase in proportion of (SiO2 + C) in the precursor powder mixture.
The variations in steady state coefficient of friction with the changes in filler proportions and sliding test variables were small.
Friction is a function of both normal (compressive) force and the coefficients of friction the amount of resistance to the initiation of movement (static frictional coefficient) or the resistance to movement (dynamic coefficient of friction).
A substantial proportion of the losses is generated by skin friction between compressor blades and working fluid.
There was a lot of friction.
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