«ROLLING FRICTION»に関連する英語の本
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1
Applied Biomechanics: Concepts and Connections
FIGURE 4.10 Molecular interactions causing rolling friction. Why is the coefficient
of rolling friction lower than that for static or kinetic friction? P R E M I U M TIR
E P R E M I U M TIR E Tire tread Rolling friction Friction that exists whenever one
...
John McLester, Peter St. Pierre, 2007
5.5.4 Rolling Friction When a surface is rolled over another surface, the
resistance to motion is termed as rolling friction. With hard materials the
coefficient of rolling friction varies in the range of 5 x 10~3 to 10~5, while the
coefficient of sliding ...
3
Friction and Lubrication in Mechanical Design
7.1 ROLLING FRICTION The frictional resistance to rolling in dry conditions was
extensively investigated by Palmgren [1] and Tabor [2], who concluded that slip is
negligible and cannot be considered as the mechanism causing rolling friction.
4
Friction Science and Technology: From Concepts to ...
... at constant velocity is found from T(D + r) = L(D − r) and TL Dr Dr (2.57) (2.58)
2.5 ROLLING FRICTION Friction during rolling is important for applications such
as the performance of rolling element bearings and the rolling of sheet products.
The value of rolling resistance is a function of the coefficient of rolling friction
between metals, which increases as the load is increased. Rolling friction is
subject to too many variables for a direct mathematical determination. The types
of metals ...
6
Contact Mechanics and
Friction: Physical Principles and ...
Examinations of rolling friction have not played as a prominent role in history as
sliding friction, probably because rolling friction is much smaller in magnitude
than sliding friction and, therefore, less annoying. The first ideas of the nature of ...
7
Sliding
Friction: Physical Principles and Applications
If F is the force necessary to keep an object rolling at some constant velocity v,
the rolling friction coefficient /ir is defined by fiR = F/L, where L is the load. We
note, however, that while the sliding friction coefficient fi is usually nearly
independent ...
Because of the complexity of the phenomena associated with rolling friction,
however, it is difficult to write quantitative laws pertaining to it (as has been done
in the case of sliding friction). Coefficients of rolling friction are generally in the
range ...
9
Friction, Wear, Lubrication: A Textbook in Tribology
A Textbook in Tribology Kenneth C Ludema. 0.15-- 0.1" 0.05 -80°C -4 -3 -2 -1 0
log of the sliding speed (cm/sec) Figure 6.14 The coefficient of sliding friction and
coefficient of rolling friction (due to damping loss) of PTFE. The sliding friction ...
10
Principles and Applications of Tribology
Bharat Bhushan. 6.2.7.2 Mechanisms of Rolling Friction In the case of rolling
contacts, rolling friction arises from the resistance to rolling and because of slip.
The magnitude of the resistance to rolling is usually much less than that during
slip.
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Training Daze
What it is: The theory behind anti-lock braking system (ABS) is simple: Keeping the wheels moving allows the tires to maintain rolling friction. This friction allows ... «LawOfficer.com, 3月 15»
Driving in the Snow: Acceleration is the Key
A physicist would start such explanation by modeling a vehicle as a simple cube experiencing rolling friction due to its wheels. This cube encounters varying ... «Communities Digital News, 11月 14»
Young Czech scientist among EU prize winners
Rolling friction, also called rolling resistance or rolling drag, is the force resisting the motion when a body such as a ball, tire, or wheel rolls on a surface. «Prague Post, 9月 14»
Tech FAQ: Seriously, wider tires have lower rolling resistance than …
And those same readers also often don't believe that dropping that bomber pressure they run in their tires will reduce their rolling friction. While I'm sure I can't ... «velonews.competitor.com, 3月 12»
Slippery when stacked: NIST theorists quantify the friction of graphene
The localized, temporary warping creates rolling friction or resistance, the force ... Most significantly, the NIST study shows why friction falls with each sheet of ... «Science Codex, 1月 12»
