CN112093001A - Ship inclined ladder channel clear space judgment method - Google Patents
Ship inclined ladder channel clear space judgment method Download PDFInfo
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- CN112093001A CN112093001A CN202011010698.7A CN202011010698A CN112093001A CN 112093001 A CN112093001 A CN 112093001A CN 202011010698 A CN202011010698 A CN 202011010698A CN 112093001 A CN112093001 A CN 112093001A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
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Abstract
The invention provides a clear space judgment method of a ship inclined ladder channel applied to the technical field of ship production and manufacturing, wherein the ship inclined ladder channel comprises a lower platform (1), an upper platform (2), an inclined ladder (3) and an inclined ladder hole (4), and is characterized in that: the judging method comprises the following steps: 1) establishing a calculation model of the posture of the person going down the elevator and the clear space of the inclined elevator; 2) obtaining a comparison table of calculated values of the sizes of the openings of the inclined ladder openings; 3) obtaining the body posture graph of the person when going up and down the ladder; 4) and (6) judging. The method for judging the clear space of the inclined ladder channel of the ship can quickly judge whether the clear space of the inclined ladder channel meets the requirement, has uniform judgment standard and reliable judgment result, improves the design quality of drawings, can find problems in advance and optimize the structure, avoids frequent reworking on site, ensures the design and manufacturing quality of the clear space of the inclined ladder channel of the ship, and meets the requirement of the ship.
Description
Technical Field
The invention belongs to the technical field of ship production and manufacturing, and particularly relates to a method for judging clear space of an inclined ladder channel of a ship.
Background
On the boats and ships that are equipped with independent cabin and driver's cabin, all generally have the inclined ladder that gets into the cabin and build the deck on, some large-scale boats and ships build inside at last and set up dedicated indoor ladder way, build outside still to be equipped with open-air inclined ladder at last, make things convenient for the crew to pass and satisfy the safe needs of fleing in the boats and ships cabin. Therefore, in the detailed design stage of the ship, the outdoor inclined ladders and the indoor inclined ladders of the ship are correctly arranged, the requirements on the inclined ladder angles in different areas are met according to the specifications, the inclined ladders with different angles recommended by the ship steel inclined ladder standard (CB/T81-1999) in the ship industry correspond to the minimum opening width and the opening length, and the summary table of the opening sizes of the inclined ladder openings recommended by the CB standard is as follows:
the ship production design is a conversion process for modeling the detailed design content in three dimensions and providing construction basis for the site, and defects in the detailed design drawing need to be completely exposed and a solution is provided at the stage, so that the site rework is avoided. The problem that exists among the prior art is, some inclined ladder trompils sizes can not satisfy crewman's normal current of going up and down inclined ladder, and minimum length indicates current clean space in the CB standard, and this size itself is littleer partially, wants crewman's current convenience and the inside decoration that needs to carry out of inclined ladder passageway, and structure trompil size needs carry out the inclined ladder trompil according to current convenient requirement and built-in space that occupies and increase the processing. However, in the prior art, a method for accurately judging the minimum net size of the inclined ladder passage is not provided, so that frequent reworking is required.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the defects in the prior art, the ship inclined ladder channel clear space judgment method is simple in step, capable of quickly judging whether the inclined ladder channel clear space meets the requirements, unified in judgment standard, reliable in judgment result, capable of improving the design quality of drawings, capable of finding problems in advance and optimizing the structure, capable of avoiding frequent reworking on site, capable of guaranteeing the design and manufacturing quality of the ship inclined ladder channel clear space and capable of meeting the ship requirements.
To solve the technical problems, the invention adopts the technical scheme that:
the invention relates to a clear space judgment method for a ship inclined ladder channel, wherein the ship inclined ladder channel comprises a lower platform, an upper platform, an inclined ladder and inclined ladder holes, and the judgment method comprises the following steps:
1) establishing a calculation model of the posture of the person going down the elevator and the clear space of the inclined elevator;
2) obtaining a comparison table of calculated values of the sizes of the openings of the inclined ladder openings;
3) obtaining the body posture graph of the person when going up and down the ladder;
4) and (3) transferring the body posture graph of the person when the person goes up and down the ladder, aligning the sole of the body posture graph of the person when the person goes up and down the ladder with the upper surface of the inclined ladder step, drawing a limit line which is parallel to the inclined ladder and is 100mm away from the head of the person, if the upper platform is above the limit line, judging that the clear space of the inclined ladder channel of the ship meets the requirement, if the upper platform is below the limit line, continuously optimizing the upper platform until the upper platform is above the limit line.
When a calculation model of the posture of the person getting down the elevator and the clear space of the inclined elevator is established, the height of the person is assumed to be 1800mm in the calculation model, the upper body of the person is inclined forward 8 degrees relative to the front end of the leg when the person gets down the elevator, namely the maximum calculation value of forward movement of the head is 250mm, and the minimum clear space in front of the head is 50 mm.
According to the calculation model, the length of the upper platform inclined ladder is obtained: l +250mm +50mm, wherein L ═ COT α X1800, then ramp opening length: COT α X1800mm +250mm +50 mm. Obtaining a comparison table of the opening size calculation values of the inclined ladder according to the inclined ladder angle selected according to the ship standard and the calculation formula; and selecting the opening length of the inclined ladder according to the comparison table.
The posture graph of the person when going up and down is obtained according to the human engineering theory through the posture of the person when going up and down the inclined ladder and the gravity center adjustment state when the person goes up and down the ladder.
When the clear space of the ship inclined ladder channel is judged, after the ship inclined ladder channel model is finished and the inclined ladder model is placed in place, the inclined ladder position model is dissected, the body posture graph of a person during ascending and descending is taken, and the sole of the body posture graph of the person during ascending and descending is aligned with the upper surface of the inclined ladder step.
When obtaining the body posture graph of a person going upstairs and downstairs, the upper half body of the person is flat and straight and inclines forwards by 20 degrees when the person goes upstairs, the head of the person extends forwards by 266mm, the head of the person goes downwards to look at the inclined ladder step when the person goes downstairs, the head of the person is bent with the upper half body, the foremost end of the head of the person inclines forwards by 20 degrees, and the head extends forwards by 250 mm.
The calculated value of the size of the opening of the inclined ladder opening is compared by taking the height of a person as 1800mm as an example:
by adopting the technical scheme of the invention, the following beneficial effects can be obtained:
the clear space judgment method for the ship inclined ladder channel is improved aiming at the defects that the minimum opening width and the opening length corresponding to inclined ladders with different angles recommended according to the ship steel inclined ladder standard (CB/T81-1999) in the ship industry are insufficient. Therefore, the method combines a calculation model and formula calculation to obtain a comparison table of the opening size calculation value of the inclined ladder opening, combines body posture graphs of people when the people get on and off the ladder, and finally judges whether the requirements are met or not according to the standard conveniently and quickly. The judging method provided by the invention relates to the judgment of the minimum net size of the ship inclined ladder channel, can help ship engineering designers to quickly select the opening size of the inclined ladder opening of a deck or a platform and the influence of a structure above the opening of the inclined ladder opening on the inclined ladder channel in the detailed design and production design processes, can discover in advance and optimize the structure, and avoids field rework. In the determination, if the determination result satisfies the requirement, the next process can be performed. If the judgment result does not meet the requirement, namely optimization is needed, the platform is required to be avoided continuously so as to meet the comfort of personnel when ascending and descending the inclined ladder. The method for judging the clear space of the ship inclined ladder channel has the advantages of being simple in steps and low in cost, being capable of quickly judging whether the clear space of the inclined ladder channel meets requirements or not, being uniform in judgment standard and reliable in judgment result, improving the design quality of drawings, being capable of finding problems in advance and optimizing the structure, avoiding frequent reworking on site, guaranteeing the design and manufacturing quality of the clear space of the ship inclined ladder channel and meeting the requirements of ships.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic diagram of a 60-degree judgment structure of an inclined ladder for a clear space of a ship inclined ladder channel according to the invention;
FIG. 2 is a schematic structural diagram of the inclined ladder for the clear space of the inclined ladder channel of the ship, which is obtained after the structure is optimized by the judging method of the invention;
FIG. 3 is a schematic diagram of a calculation model structure of a personnel descending body posture and an inclined ladder clear space during judgment of a ship inclined ladder channel clear space;
FIG. 4 is a schematic diagram of the ladder body position of a person during clear space judgment of a ship inclined ladder channel according to the invention;
FIG. 5 is a schematic diagram of the body posture of a person descending the ship when the clear space of the inclined ladder passage of the ship is judged according to the invention;
in the drawings, the reference numbers are respectively: 1. a lower platform; 2. an upper platform; 3. an inclined ladder; 4. drilling holes on the inclined ladder; 5. an inclined ladder step; 6. a limiting line; 7. personnel; 8. an overhead trajectory envelope; 9. descending the stairs; 10. the lower body posture limit line.
Detailed Description
The following detailed description of the embodiments of the present invention, such as the shapes and structures of the components, the mutual positions and connection relations among the components, the functions and operation principles of the components, will be made by referring to the accompanying drawings and the description of the embodiments:
as shown in fig. 1-5, the present invention is a method for determining clear space of a ship inclined ladder channel, wherein the ship inclined ladder channel comprises a lower platform 1, an upper platform 2, an inclined ladder 3 and an inclined ladder opening 4, and the determination method comprises:
1) establishing a calculation model of the posture of the person going down the elevator and the clear space of the inclined elevator;
2) obtaining a comparison table of calculated values of the sizes of the openings of the inclined ladder openings;
3) obtaining the body posture graph of the person when going up and down the ladder;
4) transferring a body posture graph of a person when the person climbs and climbs, aligning the sole of the body posture graph of the person when the person climbs and climbs to the upper surface of the inclined ladder step 5, drawing a limit line 6 which is parallel to the inclined ladder and is 100mm away from the head of the person, if the upper platform 2 is above the limit line 6, judging that the clear space of the inclined ladder channel of the ship meets the requirement, if the upper platform 2 is below the limit line 6, continuously optimizing the upper platform 2 until the upper platform 2 is above the limit line 6. The steps are improved aiming at the defects that the minimum opening width and the opening length of the inclined ladder with different angles recommended by the ship steel inclined ladder standard (CB/T81-1999) in the ship industry are insufficient. Therefore, the method combines a calculation model and formula calculation to obtain a comparison table of the opening size calculation value of the inclined ladder opening, combines body posture graphs of people when the people get on and off the ladder, and finally judges whether the requirements are met or not according to the standard conveniently and quickly. The judging method provided by the invention relates to the judgment of the minimum net size of the ship inclined ladder channel, can help ship engineering designers to quickly select the opening size of the inclined ladder opening of a deck or a platform and the influence of a structure above the opening of the inclined ladder opening on the inclined ladder channel in the detailed design and production design processes, can discover in advance and optimize the structure, and avoids field rework. In the determination, if the determination result satisfies the requirement, the next process can be performed. If the judgment result does not meet the requirement, namely optimization is needed, the platform is required to be avoided continuously so as to meet the comfort of personnel when ascending and descending the inclined ladder. The method for judging the clear space of the inclined ladder channel of the ship can quickly judge whether the clear space of the inclined ladder channel meets the requirement, has uniform judgment standard and reliable judgment result, improves the design quality of drawings, can find problems in advance and optimize the structure, avoids frequent reworking on site, ensures the design and manufacturing quality of the clear space of the inclined ladder channel of the ship, and meets the requirement of the ship.
When a calculation model of the posture of the person getting down the elevator and the clear space of the inclined elevator is established, the height of the person is assumed to be 1800mm in the calculation model, the upper body of the person is inclined forward 8 degrees relative to the front end of the leg when the person gets down the elevator, namely the maximum calculation value of forward movement of the head is 250mm, and the minimum clear space in front of the head is 50 mm. Above-mentioned structure, the height value of personnel is 1800mm, and daily demand is satisfied basically to such numerical value. Of course, other height parameters of the person can be selected, and according to the method, the comparison table of the opening size calculation values of the inclined ladder opening can be conveniently and reliably obtained, and then judgment is conveniently carried out.
According to the calculation model, the length of the upper platform inclined ladder is obtained: l +250mm +50mm, wherein L ═ COT α X1800, then ramp opening length: COT α X1800mm +250mm +50 mm. Obtaining a comparison table of the opening size calculation values of the inclined ladder according to the inclined ladder angle selected according to the ship standard and the calculation formula; and selecting the opening length of the inclined ladder according to the comparison table. Above-mentioned structure selects the parameter according to computational formula, can accurately obtain inclined ladder mouth trompil size calculation value comparison table. Therefore, when the inclined ladder is designed or manufactured, the corresponding numerical value of the opening length of the inclined ladder is directly selected according to the corresponding parameters, calculation is not needed, and the construction efficiency is improved. And selecting the corresponding numerical value of the opening length of the inclined ladder, judging, and continuing optimization which is not in line with the requirement until the requirement is met.
The posture graph of the person when going up and down is obtained according to the human engineering theory through the posture of the person when going up and down the inclined ladder and the gravity center adjustment state when the person goes up and down the ladder. When obtaining the body posture graph of the person getting on and off the ladder, the upper half body of the person is flat and straight and inclines forwards by 20 degrees when getting on the ladder, the head of the person extends forwards by 266mm, the head of the person downward visits the inclined ladder step (5), the head of the person bends with the upper half body, the foremost end of the head of the person inclines forwards by 20 degrees, and the head extends forwards by 250 mm.
When clear space judgment of the ship inclined ladder channel is carried out, after the ship inclined ladder channel model is finished and the inclined ladder model is placed in place, the inclined ladder position model is dissected, the body posture graph of a person during ascending and descending is taken, and the sole of the body posture graph of the person during ascending and descending is aligned with the upper surface of the inclined ladder step (5).
The calculated value of the size of the opening of the inclined ladder opening is compared by taking the height of a person as 1800mm as an example:
the clear space judgment method for the ship inclined ladder channel is improved aiming at the defects that the minimum opening width and the opening length corresponding to inclined ladders with different angles recommended according to the ship steel inclined ladder standard (CB/T81-1999) in the ship industry are insufficient. Therefore, the method combines a calculation model and formula calculation to obtain a comparison table of the opening size calculation value of the inclined ladder opening, combines body posture graphs of people when the people get on and off the ladder, and finally judges whether the requirements are met or not according to the standard conveniently and quickly. The judging method provided by the invention relates to the judgment of the minimum net size of the ship inclined ladder channel, can help ship engineering designers to quickly select the opening size of the inclined ladder opening of a deck or a platform and the influence of a structure above the opening of the inclined ladder opening on the inclined ladder channel in the detailed design and production design processes, can discover in advance and optimize the structure, and avoids field rework. In the determination, if the determination result satisfies the requirement, the next process can be performed. If the judgment result does not meet the requirement, namely optimization is needed, the platform is required to be avoided continuously so as to meet the comfort of personnel when ascending and descending the inclined ladder. The method for judging the clear space of the ship inclined ladder channel has the advantages of being simple in steps and low in cost, being capable of quickly judging whether the clear space of the inclined ladder channel meets requirements or not, being uniform in judgment standard and reliable in judgment result, improving the design quality of drawings, being capable of finding problems in advance and optimizing the structure, avoiding frequent reworking on site, guaranteeing the design and manufacturing quality of the clear space of the ship inclined ladder channel and meeting the requirements of ships.
The present invention has been described in connection with the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments disclosed, but is intended to cover various modifications, changes and equivalents of the embodiments of the invention, and its application to other applications without departing from the spirit and scope of the invention.
Claims (7)
1. The clear space judgment method for the ship inclined ladder channel comprises a lower platform (1), an upper platform (2), an inclined ladder (3) and inclined ladder holes (4), and is characterized in that: the judging method comprises the following steps:
1) establishing a calculation model of the posture of the person going down the elevator and the clear space of the inclined elevator;
2) obtaining a comparison table of calculated values of the sizes of the openings of the inclined ladder openings;
3) obtaining the body posture graph of the person when going up and down the ladder;
4) transferring a body posture graph of a person when the person goes up and down a ladder, aligning a sole of the body posture graph of the person when the person goes up and down the ladder with the upper surface of an inclined ladder step (5), drawing a limit line (6) which is parallel to the inclined ladder and is 100mm away from the head of the person, judging that the clear space of the inclined ladder channel of the ship meets the requirement if the upper platform (2) is above the limit line (6), and continuously optimizing the upper platform (2) until the upper platform (2) is above the limit line (6) if the upper platform (2) is below the limit line (6).
2. The clear space assessment method for a ship ramp channel according to claim 1, characterized in that: when a calculation model of the posture of the person getting down the elevator and the clear space of the inclined elevator is established, the height of the person is assumed to be 1800mm in the calculation model, the upper body of the person is inclined forward 8 degrees relative to the front end of the leg when the person gets down the elevator, namely the maximum calculation value of forward movement of the head is 250mm, and the minimum clear space in front of the head is 50 mm.
3. The clear space assessment method for ship ramp ducts according to claim 1 or 2, characterized in that: according to the calculation model, the length of the upper platform inclined ladder is obtained: l +250mm +50mm, wherein L ═ COT α X1800, then ramp opening length: COT α X1800mm +250mm +50 mm.
4. The clear space assessment method for a ship ramp channel according to claim 3, characterized in that: obtaining a comparison table of the opening size calculation values of the inclined ladder according to the inclined ladder angle selected according to the ship standard and the calculation formula; and selecting the opening length of the inclined ladder according to the comparison table.
5. The clear space assessment method for ship ramp ducts according to claim 1 or 2, characterized in that: the posture graph of the person when going up and down is obtained according to the human engineering theory through the posture of the person when going up and down the inclined ladder and the gravity center adjustment state when the person goes up and down the ladder.
6. The clear space assessment method for ship ramp ducts according to claim 1 or 2, characterized in that: when clear space judgment of the ship inclined ladder channel is carried out, after the ship inclined ladder channel model is finished and the inclined ladder model is placed in place, the inclined ladder position model is dissected, the body posture graph of a person during ascending and descending is taken, and the sole of the body posture graph of the person during ascending and descending is aligned with the upper surface of the inclined ladder step (5).
7. The clear space assessment method for a ship ramp channel according to claim 5, characterized in that: when obtaining the body posture graph of the person getting on and off the ladder, the upper half body of the person is flat and straight and inclines forwards by 20 degrees when getting on the ladder, the head of the person extends forwards by 266mm, the head of the person downward visits the inclined ladder step (5), the head of the person bends with the upper half body, the foremost end of the head of the person inclines forwards by 20 degrees, and the head extends forwards by 250 mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114564795A (en) * | 2021-12-31 | 2022-05-31 | 博迈科海洋工程股份有限公司 | Automatic matching method for fixed inclined ladder parameters of offshore platform |
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| JPH0826182A (en) * | 1994-07-15 | 1996-01-30 | Hitachi Zosen Corp | Ladder and manufacture thereof |
| CN206968938U (en) * | 2017-07-11 | 2018-02-06 | 青岛造船厂有限公司 | A kind of cargo hold cocke-stair |
| CN207078293U (en) * | 2017-08-15 | 2018-03-09 | 广船国际有限公司 | A kind of inclined ladder and ship |
| CN207078294U (en) * | 2017-08-15 | 2018-03-09 | 广船国际有限公司 | A kind of inclined ladder and hull |
| CN110203339A (en) * | 2018-09-17 | 2019-09-06 | 中国船舶工业集团公司第七0八研究所 | A kind of design method of inclined ladder for ship |
-
2020
- 2020-09-23 CN CN202011010698.7A patent/CN112093001B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0826182A (en) * | 1994-07-15 | 1996-01-30 | Hitachi Zosen Corp | Ladder and manufacture thereof |
| CN206968938U (en) * | 2017-07-11 | 2018-02-06 | 青岛造船厂有限公司 | A kind of cargo hold cocke-stair |
| CN207078293U (en) * | 2017-08-15 | 2018-03-09 | 广船国际有限公司 | A kind of inclined ladder and ship |
| CN207078294U (en) * | 2017-08-15 | 2018-03-09 | 广船国际有限公司 | A kind of inclined ladder and hull |
| CN110203339A (en) * | 2018-09-17 | 2019-09-06 | 中国船舶工业集团公司第七0八研究所 | A kind of design method of inclined ladder for ship |
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| Title |
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| 郝绍瑞: "船舶斜梯梯口尺寸分析", 《船舶》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114564795A (en) * | 2021-12-31 | 2022-05-31 | 博迈科海洋工程股份有限公司 | Automatic matching method for fixed inclined ladder parameters of offshore platform |
| CN114564795B (en) * | 2021-12-31 | 2024-05-31 | 博迈科海洋工程股份有限公司 | Automatic parameter matching method for fixed inclined ladder of offshore platform |
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