EP1099623A2 - Aufblasbare Trennwand zur Reduzierung freier Oberflächen - Google Patents
Aufblasbare Trennwand zur Reduzierung freier Oberflächen Download PDFInfo
- Publication number
- EP1099623A2 EP1099623A2 EP00123950A EP00123950A EP1099623A2 EP 1099623 A2 EP1099623 A2 EP 1099623A2 EP 00123950 A EP00123950 A EP 00123950A EP 00123950 A EP00123950 A EP 00123950A EP 1099623 A2 EP1099623 A2 EP 1099623A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- sack
- section
- bulkhead
- inflated
- inflatable
- 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.)
- Granted
Links
Images
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 water intrusion.
- 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.
- Another option is there in tapes inside the inflatable bag integrate through the in the inflated state of the rectangular cross section of the bulkheads more or less exactly is determined, i.e. the cuboid shape of the bulkhead forming inflated sack leaves wishes there open.
- 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.
- a thin bar that is prevented from dodging therefore has a very large bending moment.
- 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 is trying to Rectangular cross section into a circular cross section convict, but that is not possible because that at least one cloth on 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.
- Out of it results in an unchanged surface of the bulkhead Reduction of bulkhead volume.
- Pressure increase inside the bulkhead This pressure increase causes the at least one inside the bulkhead existing cloth is tightened tighter, i.e. the at least one cloth takes the mentioned root bending moment 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 are provided next to each other.
- the distance the distance between the cloth strips Bands correspond as they are 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 effort 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 Bulkhead according to the invention is 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 Floor 14 of the ship's foreclosure deck in one suitable housing provided.
- a flexible one Stiffener 18 attached by at least a cloth or a number of cloth strips 20 formed 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.
- the square or rectangular cross section of the at least an inflated sack 12, i.e. the Scotsman through whom on the inside of the sack 12 on the longitudinal edges 22 fixed cloth strips 20 determined and forced.
- 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 exposed 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 they 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 Sackes 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)
Abstract
Description
- Figur 1
- in einer perspektivischen Ansicht einen Abschnitt des Sicherungssystems im aktiven, d.h. aufgeblasenen Abschott-Zustand,
- Figur 2
- einen Querschnitt durch das Sicherungssystem gemäß Figur 1, und
- Figur 3
- eine der Figur 2 ähnliche Darstellung zur Verdeutlichung des Wirkungsprinzips des Sicherungssystemes.
Claims (3)
- Sicherungssystem für Schiffe mit mindestens einem aufblasbaren Sack (12), der im aufgeblasenen Zustand mittels einer im Inneren (16) des Sackes (12) vorgesehenen flexiblen Versteifungseinrichtung (18) eine Schotte eckigen Querschnitts bildet,
dadurch gekennzeichnet,
daß die flexible Versteifungseinrichtung (18) von mindestens einem Tuch gebildet ist, das an den den Abschott-Zustand des Sackes (12) bestimmenden Längskanten (22) des Sackes (12) fixiert ist und das den Innenquerschnitt des Sackes (12) im aufgeblasenen Abschott-Zustand überspannt. - Sicherungssystem nach Anspruch 1,
dadurch gekennzeichnet,
daß die flexible Versteifungseinrichtung (18) von einer Anzahl Tuchstreifen (20) gebildet ist, die in Längsrichtung des Sackes (12) nebeneinander vorgesehen sind. - Sicherungssystem nach Anspruch 2,
dadurch gekennzeichnet,
daß die Tuchstreifen (20) aus einem dehnungsarmen bzw. undehnbaren Material bestehen.
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 true EP1099623A2 (de) | 2001-05-16 |
EP1099623A3 EP1099623A3 (de) | 2003-04-16 |
EP1099623B1 EP1099623B1 (de) | 2004-02-11 |
Family
ID=7928932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00123950A Expired - Lifetime EP1099623B1 (de) | 1999-11-13 | 2000-11-03 | Aufblasbare Trennwand zur Reduzierung freier Oberflächen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1099623B1 (de) |
AT (1) | ATE259324T1 (de) |
DE (2) | DE19954656C2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1101694A3 (de) * | 1999-11-19 | 2003-04-16 | Diehl Munitionssysteme GmbH & Co. KG | Aufblasbare Trennwand zur Reduzierung freier Oberflächen, insbesondere für Fährschiffe |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19610418A1 (de) | 1996-03-16 | 1997-09-18 | Diehl Gmbh & Co | Sicherungssystem für Fährschiffe, wie Ro/Ro-Schiffe |
Family Cites Families (3)
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 |
-
1999
- 1999-11-13 DE DE19954656A patent/DE19954656C2/de not_active Expired - Fee Related
-
2000
- 2000-11-03 DE DE50005252T patent/DE50005252D1/de not_active Expired - Fee Related
- 2000-11-03 AT AT00123950T patent/ATE259324T1/de not_active IP Right Cessation
- 2000-11-03 EP EP00123950A patent/EP1099623B1/de not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19610418A1 (de) | 1996-03-16 | 1997-09-18 | Diehl Gmbh & Co | Sicherungssystem für Fährschiffe, wie Ro/Ro-Schiffe |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1101694A3 (de) * | 1999-11-19 | 2003-04-16 | Diehl Munitionssysteme GmbH & Co. KG | Aufblasbare Trennwand zur Reduzierung freier Oberflächen, insbesondere für Fährschiffe |
Also Published As
Publication number | Publication date |
---|---|
DE19954656A1 (de) | 2001-05-31 |
EP1099623A3 (de) | 2003-04-16 |
EP1099623B1 (de) | 2004-02-11 |
ATE259324T1 (de) | 2004-02-15 |
DE50005252D1 (de) | 2004-03-18 |
DE19954656C2 (de) | 2003-04-10 |
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