Anti Rolling System

Anti Rolling System
MOCON ART

System
The Anti-Rolling System type MOCON
has been developed to reduce the
roll motions of vessels at sea.
MOCON is based on a U-shape
tank system which is equipped with
monitoring and control equipment.
The tank water oscillation is energised
by the roll movement of the
RELIABILITY
Long time experiences in measurement
and control systems for ships
form the basis of MOCON system.
The utilisation of components which
are in operation since many years
ensures a safe and low maintenance
requiring service.
MEASUREMENT AND
CONTROL TECHNOLOGY
The developed control system
combines continuously measurement
of dynamic tank Level and
ship’s roll movement allows a
proportional water flow control. The
measurement results are basis for
adaptation of tank water oscillation
period by tank damping modulation.
The dynamic control system ensures
a harmonic tank water oscillation
and lead so also to a more
harmonic roll motion of the vessel.
LAYOUT
The system layout is based on
highly sophisticated numerical
calculations. CFD-simulations are
carried out with original ship dimensions
for special designs.
ship. The oscillating tank water is
counteracting ship’s roll motion and
stabilising the vessel. The efficiency
of U-shape tank system is opti -
mised by developed measurement
and control technology. The results
of data input to system control from
monitoring of tank water oscillation
TYPE APPROVAL
All electronic components are type
approved by:
- Germanischer Lloyd
- Lloyd’s Register
of Shipping
RDO
Digital Output
RDI
Digital Input
and ship roll movement ensures
optimised control and best system
efficiency. The system is selfcontrolled
including auto matic
safety procedures in case of malfunctions
of components or sea/ship
conditions are outside of system
working range.
Pneumatic actuators Tank
sensor
MOCON ART
RAD 8
Analogue Input
Roll
sensor

Components
HOMIP
The HOMIP is a powerfull PLC with communication,
control and monitoring functions. The touch screen
display is provided with a clearly arranged control panel.
Compact dimensions allow the installation in all kinds of
control panels.
VISUALISATION
The roll period of vessel and tank water oscillation
period are continuously measured and displayed on a
monitor in main control unit.
CONTROL CABINET (1)
The main control cabinet contains the electronic
components for system control and for control data
determination and processing.
CONTROL CABINET (2)
Control cabinets close to the tanks contains pneumatic
and electronic parts for valve operation and data
transmission of tank sensor system.

Components www.envise.com
LEVEL MEASUREMENT
A tank sensor system has been
developed to measure the oscillating
water column.
The Teflon coated diaphragm with a
large surface and special pressure
transfer technology to the epie -
zoresistive sensor make the Hoppe
transmitter resistant against incrustation,
fouling and overpressure.
A powder coated stainless steel
casing prevents galvanic and
material corrosion. Vibration limit
switches are used for liquid Level
detection to avoid sloshing effects
of oscillating tank water.
Cargo Handling Systems
Tank Content Measuring
Bunker Safety
Overflow Safety
Draught Measuring
Water Ingress Detection
Valve Remote Control
Ballast Exchange
Loading Computer
Kieler Straße 318
D-22525 Hamburg
Tel. +49-40-561949-0
Fax +49-40-561949-99
www.hoppe-bmt.de
info@hoppe-bmt.de
Motion Control Systems
Anti Heeling
Stability Test
Anti Rolling
Parametric Roll
WWW.HOPPE-BMT.DE
VALVE
Utilisation of standard butterfly
valves with Hoppe fast acting pneumatic
actuators provides a high
control accuracy and reliability.
Monitoring Systems
Torque Power Meter
Ship Speed Meter
Performance Monitoring
Hull Stress Monitoring
Integrated Solutions