The use of an electronically controlled slipping clutch is gradually increasing for a marine propulsion system.
This system can provide a continuous change of propeller revolution even in a lower revolution zone of prime
mover. However, it hardy make the decelerating condition, because the slipping clutch itself can not make the
negative torque.
In this paper, the authors have designed a push-pull control system using two slipping clutches in order to
improve the above disadvantage of the conventional slipping clutch. For the evaluation of this system, the whole
propulsion system including prime mover, clutches, propeller and ship are numerically simulated using the
precise mathematical model described here. From several accelerating and decelerating simulations, the following
results are pointed out.
1) FPP’s revolution can be easily changed in the slipping zone by using this system, although the main engine
is governed constant revolution.
2) Astern and ahead maneuvering is also performed by this system.
3) The mathematical model for this simulation including engine, clutch, propeller and ship is useful for the
design and evaluation of the whole propulsion system.
As the result, this push-pull controlled slipping clutch system will be very useful for a marine propulsion system.第6回舶用機関国際シンポジウム ISME (International Symposium on Marine Engineering) Tokyo 2000, 場所:日本都市センター会館, 会期:10月23日-27