Ship Engine Room Partitioning for Flooding Resistance
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Solution Overview
Problem
Existing ship configurations, such as those disclosed in JP 2013-137168 A, face the risk of losing all main machine functions when the engine room is flooded, and partitioning to mitigate this can lead to increased engine room size, reducing space for passenger and cargo areas.
Innovation Solution
The ship is partitioned into two engine rooms by a partition wall with transverse and longitudinal bulkheads, allowing main and auxiliary machines to be accommodated separately, ensuring navigation function remains even if one engine room floods, while minimizing engine room length and size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the engine room is partitioned into multiple segments by transverse bulkheads to suppress flooding influence, then flooding resistance is improved, but the engine room size increases and space for other areas decreases
Solution Approach 1:
The engine room is divided into a port side engine room and a starboard side engine room by a longitudinal bulkhead extending in the ship width direction. This segmentation allows the machines to be distributed across different compartments, so that flooding in one compartment does not affect the other, thereby improving flooding resistance without requiring excessive engine room size
Solution Approach 2:
Instead of dividing the engine room only in the bow-stern direction (one dimension), the invention introduces division in the ship width direction (another dimension) by adding a longitudinal bulkhead. This creates a two-dimensional segmentation pattern that more effectively prevents flooding propagation while maintaining compact engine room dimensions
2Device complexity
If multiple main machines are disposed in the same engine room, then machine arrangement is simplified, but the risk of losing all main machine functions during flooding increases
Solution Approach 1:
The engine room is segmented into port side and starboard side compartments by a longitudinal bulkhead. One main machine is disposed in the port side engine room and the other main machine is disposed in the starboard side engine room. This segmentation ensures that if one compartment is flooded, the other main machine remains operational, maintaining navigation function reliability
Solution Approach 2:
Different regions of the engine room (port side vs. starboard side) are assigned different main machines with distinct functional characteristics. This local differentiation ensures that the loss of one machine does not compromise the entire propulsion system, as each side can independently maintain navigation capability
Data Source
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AI summary
This ship (1) is provided with a partition wall (30A, 30B) which partitions an engine room (10A). The partition wall (30A, 30B) is provided with a first bulkhead (31A), a second bulkhead (32A), and a vertical bulkhead (33A). The first bulkhead (31A) is located further towards the rear than the center of the engine room (10A) in the bow-stern direction and extends towards a second broadside (3B) from a first broadside (3A). The second bulkhead (32A) is located further towards the front than the center of the engine room (10A) and extends towards the first broadside (3A) from the second broadside (3B). The vertical bulkhead (33A) connects the first bulkhead (31A) and the second bulkhead (32A). (FR) La présente invention concerne un navire (1) qui est pourvu d'une paroi de separation (30A, 30B) qui sépare une chambre de moteur (10A). La paroi de separation (30A, 30B) est pourvue d'une premiere cloison (31A), d'une deuxième cloison (32A) et d'une cloison verticale (33A). La premiere cloison (31A) est situee plus loin vers l'arrière que le centre de la chambre de moteur (10A) dans la direction proue-poupe et s'étend vers un deuxieme côté large (3B) depuis un premier côté large (3A). La deuxieme cloison (32A) est situee plus loin vers l'avant que le centre de la chambre de moteur (10A) et s'étend vers le premier côté large (3A) depuis le deuxième côté large (3B). La cloison verticale (33A) relie la premiere cloison (31A) et la deuxième cloison (32A).