R&D

R&D POWCT

.Source: Rietschoten en Houwens

The “Platform Onder Water Centrale Trainer” was delivered in 1994 by Imtech Marine of Rotterdam, and is often referred to as “Walvis” (whale).

The platform systems control trainer incorporates the facilities for training all Walrus (2) class submarine crew members involved in platform control in the Central Control Room. It accommodates all skill levels of trainee from the new submariner who is being familiarized with the control panels and normal procedures, through the more experienced operators practicing drills and standard emergency procedures, to the highly experienced ship control teams maintaining and improving their skills through complex damage control scenarios (team training) and emergency procedures.

In order to successfully train the submarine crews the trainer consists of a complete replica of the port side of the Central Control Room of the Walrus class submarine “Zeeleeuw”. Together with a simulation of the ship’s platform systems and platform control systems and a motion and sound system the simulated submarine feels, sounds and appears as realistic as the actual submarine.

The trainer is housed in a self contained cabin motion system (5 by 5,5 meters), which contains the port side of the submarine Central Control Room, with the Steering Console and Machinery Central Control Panel. It also contains an instructor area with two instructor operating panels.

Simultaneous movement in roll and pitch is provided by mounting the cabin on a pivot gimbal motion frame. The two degree of freedom (pitch and roll) motion system is powered by two DC electric servo motors.

The sound system simulates all sounds that can be heard in the Central Control Room. This includes background noise as well as special sounds when for instance a valve is opened, hydraulic oil or water or air flowing in or out of tanks, masts movements, etc. The sound system also provides realistic background noise on the communication system (for instance when a trainee is talking to someone in the “simulated” engine room, the sound of Diesel engines will be heard when the Diesels are running).

The man machine interface of the control panels in the Central Control Room are an exact replica of the ships panels (most of the time the same equipment has been used). The control system itself is a copy of the actual control system. This control system is monitoring and controlling a completely  simulated platform.

The simulation of the submarine platform systems comprises the sail and platform installations in such a way that the overall performance of the simulator is identical to the actual submarine's characteristics. All platform installations that are controlled via the Central Control Room are simulated. For each platform system the depth of simulation depends on the following demands;

·       The platform system response towards the operator will be sufficiently accurate for training procedures. This also applies for effects caused by interaction to other platform models. All relevant interactions have been included.

·       The simulation model supports the failures (malfunctions) that can be initiated by the instructor. Several types of malfunctions are: Non responding valve; pipe leakage and blockage; power failures; control system failures; etc. When for instance the leakage of a pipe is initiated the relevant response of the leakage is included in the simulation.

·       All relevant failure related interactions will be taken into account. This implies that secondary effects of malfunctions progress without special instructor interventions. For instance if the 24 V DC power supply fails, all 24 V DC related valves cannot be activated anymore.

The instructor station occupies a central position in the opposite half of the simulator cabin to the Central Control Panel. The instructor station is totally enclosed to exclude smoke and sound from the training area and has a one way viewing window into the training area. Displays and control provide facilities for two seated instructors to monitor ship status, control lessons and simulate those systems that are not under student control.

The instructor station can be used for the following functions;

·       Simulator control commands, like freeze, snapshot (take and recall), simulator resets

·       Lessons plans (automatic execution of previously prepared lessons)

·       Recording of relevant data (for debriefing purposes)

·       Simulation (acting) of local personnel (via voice transformers)

·       Control of locally controlled platform systems

·       Monitor trainees via a one way viewing window and via VDU’s which display repeated information from central control panel plasma and colour display monitors

·       Monitor and control simulated platform systems via full graphic mimic presentations

·       Initiate simulated malfunctions (single or group) on the platform systems

·       Hand held terminal to control the training session in the simulated area

 

With this trainer the RNLN has a powerful tool to effectively train existing and new crew members in handling the Walrus class submarines. With this simulator it is possible to train situations which are not possible on board of actual submarines without jeopardizing personnel and equipment.

Source: Rietschoten en Houwens.

 

 

 

 

 

 

 

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