2. Braking problems
2.1 Problem definition
To bring a moving body back to rest, we have to absorb the mechanical energy it has stored and transform it into heat by friction in the brake.
Friction work is due to :
the action of gravity on the mass being manoeuvred, which produces a torque, called the torque of gravity; this torque acts positively on descent and negatively on ascent. Transmission efficiency reduces the effect of the torque of gravity on descent, and increases it on ascent;
the action of passive resistances, resulting from friction at various points, which give a passive resistance torque; this torque always assists the braking torque (for road vehicles, it is introduced by rolling resistance,...
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
Braking problems
Basis for sizing calculations
Article included in this offer
"Mechanical functions and components"
(
212 articles
)
Updated and enriched with articles validated by our scientific committees
A set of exclusive tools to complement the resources
