A corrugated bulkhead with variable corrugated spacing

CN113978609BActive Publication Date: 2025-04-01SHANGHAI MERCHANT SHIP DESIGN & RES INST
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Patent Information

Application Number
CN202111492544.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-12-08
Publication Date
2025-04-01
Estimated Expiration
2041-12-08

AI Technical Summary

Technical Problem

Tank bulkheads are prone to overall or local buckling failure when subjected to high-pressure stress and stress concentration areas. Existing solutions increase material usage and welding time, resulting in increased costs and manufacturing time.

Method used

Stands are provided on the upper or lower side of the groove bulkhead, and special groove types with different spacings are set at their opposite positions to improve local buckling resistance and reduce compression buckling deformation.

Benefits of technology

It effectively improves the buckling resistance in the high-pressure stress and stress concentration areas, reduces bulkhead weight and welding time, reduces cost and manufacturing time, and ensures the safety of the ship structure.

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Abstract

The present invention relates to a corrugated bulkhead with variable groove spacing, wherein at least one of the upper or lower sides of the corrugated bulkhead is provided with a pillar; the conventional corrugated width of the corrugated bulkhead is s; then, a first special corrugation with a spacing of L1 is provided on both sides with the position of the corrugated bulkhead directly facing the pillar as the center; at the edge of the bulkhead plate that is not entirely or partially connected to the longitudinal bulkhead and the side plate, the corrugation of the edge support steel is set to a second special corrugation with a spacing of L2; the corrugation adjacent to the second special corrugation is set to a third special corrugation with a spacing of L3; L2<L1<S, and L2<L3<S. The present invention can effectively improve the buckling and excessive buckling deformation problems of the free edge or the area with large pressure on the corrugated bulkhead, and ensure the safety of the ship structure.
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Citation Information

Patent Citations

  • Groove-shaped bulkhead with variable groove-shaped spacing

    CN217048950U