EP1099623B1 - Cloison gonflable pour reduire les surfaces libres - Google Patents

Cloison gonflable pour reduire les surfaces libres Download PDF

Info

Publication number
EP1099623B1
EP1099623B1 EP00123950A EP00123950A EP1099623B1 EP 1099623 B1 EP1099623 B1 EP 1099623B1 EP 00123950 A EP00123950 A EP 00123950A EP 00123950 A EP00123950 A EP 00123950A EP 1099623 B1 EP1099623 B1 EP 1099623B1
Authority
EP
European Patent Office
Prior art keywords
sack
bulkhead
section
inflated
bag
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00123950A
Other languages
German (de)
English (en)
Other versions
EP1099623A3 (fr
EP1099623A2 (fr
Inventor
Ulrich Dr. Schleicher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diehl BGT Defence GmbH and Co KG
Original Assignee
Diehl Munitionssysteme GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Diehl Munitionssysteme GmbH and Co KG filed Critical Diehl Munitionssysteme GmbH and Co KG
Publication of EP1099623A2 publication Critical patent/EP1099623A2/fr
Publication of EP1099623A3 publication Critical patent/EP1099623A3/fr
Application granted granted Critical
Publication of EP1099623B1 publication Critical patent/EP1099623B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
    • B63B43/045—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability by decreasing the free surface effect of water entered in enclosed decks

Definitions

  • the invention relates to a security system for ships, especially for ferries such as ro / ro ships.
  • Such a security system against ingress of water the deck of a ferry in extreme wave heights or in the event of accidents, with extendable watertight partitions Limiting water ingress is known from DE 196 10 418 A1 known.
  • the deck has at least one inflatable sack arranged through flexible stiffening devices against tipping or Pushing away stabilized and by side devices is connectable to the walls of the ship.
  • the flexible Stiffeners serve the Root bending moment of the inflated sack when partitioning to withstand ingress of water.
  • the flexible Stiffening device is there, for example, as in the gas bag integrated scissor grid or through roller shutters or Fall barriers formed by the ceiling of the deck be lowered.
  • the invention is based on the object To create a security system of the type mentioned at the beginning, the comparatively simple design with little Production costs can be realized inexpensively, the at least one inflated sack with a bulkhead rectangular cross section and the root bending moment at the appropriate water pressure on the bulkhead simple means is reliably recorded.
  • the width and the height h by bh 2/6 is given, it follows that for the same area of the bending resistance moment is greater, the smaller the width b and the greater the height h, that is, the thinner and the higher the rectangular cross section of the bar.
  • the inventor of the present proposal has recognized that the said beam can also be a cloth if it is stretched in such a way that it cannot deflect or bulge.
  • the flexible stiffening device of at least one cloth is formed to the the bulkhead condition of the sack determining longitudinal edges of the sack is fixed and that Inner cross section of the sack in the inflated bulkhead condition exactly spanned.
  • the at least one inside of the inflatable sack provided in the inflated state of the sack due to the sack's internal pressure taut. Said internal pressure tries to Rectangular cross section into a circular cross section convict, but that is not possible because that at least one cloth to the bulkhead condition of the sack determining longitudinal edges of the sack fixed on the inside is.
  • the bulkhead i.e. the bulkheads rectangular Cross section through water entering the ship from laterally loaded on the outside
  • the bulkhead is deformed, i.e. their rectangular cross section turned into a diamond
  • the Cross-sectional area is reduced accordingly. from that results in an unchanged surface of the bulkhead Reduction of bulkhead volume. From this A corresponding volume reduction results Pressure increase inside the bulkhead. This pressure increase causes the at least one inside the bulkhead cloth is tightened, i.e. the at least one cloth takes the root bending moment mentioned reliably on.
  • the flexible Stiffening device not from a single cloth, but is formed by a number of strips of cloth, which in Longitudinal direction of the sack - in its circumferential direction all around are provided side by side.
  • the distance the distance between the cloth strips Bands correspond to those in the DE cited at the beginning 196 10 418 A1 are provided.
  • the security system according to the invention has the advantage on that the manufacturing cost is low, from what correspondingly low manufacturing costs result. Also from a maintenance point of view, this is the invention Security system very advantageous because of the corresponding Bulkheads according to the invention are virtually maintenance-free.
  • FIG. 1 shows a spatial representation of a Section of the security system 10 for ships such as Ferries or the like with at least one inflatable bag 12, which is collapsible in small volumes and which in inflated condition a bulkhead rectangular Cross section (see also Figures 2 and 3) against penetrating water forms.
  • the at least one inflatable bag 12 is for example in or on the Ground 14 of the ship's foreclosure deck in one suitable housing provided.
  • a flexible one Stiffener 18 attached by at least a cloth or formed by a number of cloth strips 20 is.
  • the cloth strips 20 provided side by side in the longitudinal direction of the bag 12. You are in the bulkhead condition of the sack 16 determining longitudinal edges 22 of the bag 12 fixed, as well can be seen from Figure 2.
  • the cloth strips 20 are made made of a low-stretch or inextensible material.
  • FIG 3 illustrates the operation of the Security system 10 or the bag 12 in the inflated Bulkhead condition of rectangular cross-section.
  • the said Cross section is designated by F1.
  • the deformed cross section is by a dash-dotted line clarified and labeled F2.
  • the diamond-shaped Cross-section F2 is smaller than that by the factor cos ⁇ unloaded cross section F1, where ⁇ is the angle between the Face of the unloaded and with the water pressure P loaded Scotsman.
  • This reduction in Cross-sectional area F2 ⁇ F1 increases the Pressure inside the bulkhead, which is subject to water pressure is designated with p2.
  • the result of this pressure increase that the cloth strips 20 are stretched tighter, i.e. the cloth strips 20 are like a bar.
  • the tighter cloth strips 20 can do that on them absorb the acting root bending moment better, since it stand even better, as has been stated.
  • the distance of the cloth strips 20 in the longitudinal direction of the The bulkhead is characterized by the desired dimensional stability of the Security system 10 determines.
  • the cross-sectional area of the at least one inflatable Sacks 12 in the inflated bulkhead condition can rectangular, trapezoidal, triangular or the like. his.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Air Bags (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Revetment (AREA)
  • External Artificial Organs (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Claims (3)

  1. Système de sécurité pour bateaux comprenant au moins un coussin gonflable (12), qui à l'état gonflé forme une cloison étanche de section transversale angulaire à l'aide d'un dispositif de raidissement (18) flexible prévu à l'intérieur (16) du coussin, caractérisé en ce que le dispositif de raidissement (18) flexible est formé par au moins une toile, qui est fixée aux bords longitudinaux (22) du coussin (12) déterminant l'état de cloisonnement du cousin (12) et, à l'état de cloisonnement gonflé, s'étend sur la section transversale intérieure du coussin (12).
  2. Système de sécurité selon la revendication 1, caractérisé en ce que le dispositif de raidissement (18) flexible est formé par un nombre de bandes de toile (20), qui en direction longitudinal du coussin (12) sont prévues les unes à côté des autres.
  3. Système de sécurité selon la revendication 2, caractérisé en ce que les bandes de toile (20) sont en un matériau peu ou pas extensible.
EP00123950A 1999-11-13 2000-11-03 Cloison gonflable pour reduire les surfaces libres Expired - Lifetime EP1099623B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19954656A DE19954656C2 (de) 1999-11-13 1999-11-13 Sicherungssystem für Schiffe
DE19954656 1999-11-13

Publications (3)

Publication Number Publication Date
EP1099623A2 EP1099623A2 (fr) 2001-05-16
EP1099623A3 EP1099623A3 (fr) 2003-04-16
EP1099623B1 true EP1099623B1 (fr) 2004-02-11

Family

ID=7928932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00123950A Expired - Lifetime EP1099623B1 (fr) 1999-11-13 2000-11-03 Cloison gonflable pour reduire les surfaces libres

Country Status (3)

Country Link
EP (1) EP1099623B1 (fr)
AT (1) ATE259324T1 (fr)
DE (2) DE19954656C2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19955656C1 (de) * 1999-11-19 2001-06-07 Diehl Munitionssysteme Gmbh Sicherungssystem für Schiffe, insbesondere für Fährschiffe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1873500U (de) * 1963-02-21 1963-06-06 Richard Stuehler Boot.
DE2827943C2 (de) * 1978-06-26 1984-06-07 Conrad 8741 Saal Arbter Vorrichtung zum Abdichten der Leckstelle eines gefüllten Tankraumes in einem Tankschiff
GB2293796B (en) * 1994-10-03 1998-08-05 Tom Robin Caine Boyde Safety improvements for vehicular ferries and other vessels
DE19610418A1 (de) * 1996-03-16 1997-09-18 Diehl Gmbh & Co Sicherungssystem für Fährschiffe, wie Ro/Ro-Schiffe

Also Published As

Publication number Publication date
DE19954656A1 (de) 2001-05-31
EP1099623A3 (fr) 2003-04-16
EP1099623A2 (fr) 2001-05-16
ATE259324T1 (de) 2004-02-15
DE50005252D1 (de) 2004-03-18
DE19954656C2 (de) 2003-04-10

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