CN110749430A - Method and assembly for detecting deformation of davit suspension arm of davit - Google Patents
Method and assembly for detecting deformation of davit suspension arm of davit Download PDFInfo
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- CN110749430A CN110749430A CN201911034148.6A CN201911034148A CN110749430A CN 110749430 A CN110749430 A CN 110749430A CN 201911034148 A CN201911034148 A CN 201911034148A CN 110749430 A CN110749430 A CN 110749430A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
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Abstract
The invention provides a method and a component for detecting deformation of a davit, and relates to the field of davit tests. The method for detecting the deformation of the davit suspension arm comprises the following steps: firstly, fixedly installing a top end connecting piece on the side surface of the top of the davit, and fixedly installing a bottom end supporting piece on the side surface of the davit, which is close to the bottom; step two, overlapping the hammer line connected with the gravity hammer on the bottom end supporting piece, and connecting the other end of the hammer line with the top end connecting piece; marking points on the hammer line or the davit suspension arm, and determining the relative position of the hammer line and the davit suspension arm when the davit suspension arm is in a no-load state; and step four, applying a simulation load to the davit suspension arm, and observing whether the mark point is restored to the position of the davit suspension arm in the no-load state after the simulation load is removed. If the simulation load is met, the davit suspension arm only generates toughness deformation under the simulation load effect, and the using requirement of the suspended lifeboat can be met; otherwise, the davit suspension arm can not meet the use requirement of hanging the lifeboat.
Description
Technical Field
The invention relates to the technical field of test of a davit suspension arm, in particular to a detection method and a detection assembly for deformation of the davit suspension arm.
Background
At present, a lifeboat is generally arranged on a large-scale cruise ship, a boat frame extending out of a deck surface is usually arranged at a side position of the cruise ship, and the lifeboat is hung at an outer side position of the cruise ship through the boat frame.
If the Chinese utility model patent with the publication number of CN203567904U and publication date of 2014.04.30 discloses a marine lifeboat davit, the marine lifeboat davit comprises a base, a frame is arranged on the base, an oil pump unit is arranged on the frame, and energy storage is arranged on one side of the frame; a connecting frame is hinged at one end of the base, and a variable amplitude oil cylinder is arranged between the middle part of the base and the bottom of the connecting frame; the side part of the rack is provided with a lifesaving winch, the lifesaving winch is connected with a lifting hook through a steel wire rope, the lifting hook is connected with a lifeboat, and the bottom of the lifeboat is connected with a connecting frame through a connecting rod. In fact, the frame always bears the gravity of the whole lifeboat, if the structural strength and the rigidity of the frame are insufficient, the danger of bending deformation and even bending can occur, and the reliability in rescue use is seriously influenced.
However, in order to solve the above problems, there is no method for effectively detecting the deformation of the hull boom (corresponding to the "frame" in the above solution), and it is not possible to ensure that the structural performance of the hull boom meets the actual requirements.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a method for detecting deformation of a davit boom, so as to solve the problem that it is not possible to ensure that the structural performance of the davit boom meets the actual requirements. Meanwhile, the invention also aims to provide a detection assembly for the deformation of the davit suspension arm.
The technical scheme of the method for detecting the deformation of the davit suspension arm of the davit comprises the following steps:
the method for detecting the deformation of the davit suspension arm comprises the following steps:
firstly, fixedly installing a top end connecting piece on the side surface of the top of the davit, and fixedly installing a bottom end supporting piece on the side surface of the davit, which is close to the bottom;
lapping the hammer line connected with the gravity hammer on the bottom end supporting piece, and connecting the other end of the hammer line with the top end connecting piece;
marking points on the hammer line or the davit suspension arm, and determining a first relative position of the hammer line and the davit suspension arm when the davit suspension arm is in a no-load state;
and step four, applying a simulation load to the davit, determining a second relative position of the hammer line and the davit after the simulation load is removed, and judging whether the second relative position is consistent with the first relative position.
Has the advantages that: the davit suspension arm is subjected to bending deformation under the action of the simulated load, the distance between the top end and the bottom end of the davit suspension arm is changed, the hammer line is moved downwards under the action of the gravity hammer, the mark point is subjected to position change at the moment, the change quantity indirectly reflects the deformation quantity of the davit suspension arm, the simulated load is removed, whether the second relative position is consistent with the first relative position or not is judged, if yes, the davit suspension arm only generates toughness deformation under the action of the simulated load, the generation of permanent deformation is avoided, and the structural strength and the rigidity of the davit suspension arm can meet the use requirements of hanging a lifeboat; otherwise, the davit suspension arm generates permanent deformation under the action of the simulated load, and the structural strength and the rigidity of the davit suspension arm are lower, so that the use requirement of hanging the lifeboat cannot be met.
Furthermore, in the third step, marking points are respectively marked at the overlapped positions of the hammer line and the bottom end supporting piece.
Further, in the first step, the top end connector comprises a first magnetic suction seat and a connecting rod, and the top end connector is fixed on the side surface of the top of the davit of the keel block in a magnetic suction manner; the bottom end supporting piece comprises a second magnetic suction seat and a supporting rod, and the bottom end supporting piece is fixed on the side face, close to the bottom, of the davit of the boat frame in a magnetic suction mode.
Furthermore, the connecting rod is a threaded rod, and a nut used for clamping the other end of the hammer line is connected to the threaded rod in a threaded mode.
The technical scheme of the detection assembly for the deformation of the davit suspension arm of the boat davit comprises the following steps:
the detection assembly for the deformation of the davit comprises a top end connecting piece, a bottom end supporting piece and a hammer line connected with a gravity hammer, wherein the top end connecting piece is fixedly arranged on the side surface of the top of the davit, the bottom end supporting piece is fixedly arranged on the side surface, close to the bottom, of the davit, the hammer line connected with the gravity hammer is lapped on the bottom end supporting piece, and the other end of the hammer line is connected with the top end connecting piece; the hammer line is provided with a mark point for marking the relative position of the hammer line and the davit when the davit is in a no-load state.
Has the advantages that: the davit suspension arm is subjected to bending deformation under the action of the simulated load, the distance between the top end and the bottom end of the davit suspension arm is changed, the hammer line is moved downwards under the action of the gravity hammer, the mark point is subjected to position change at the moment, the change quantity indirectly reflects the deformation quantity of the davit suspension arm, the simulated load is removed, whether the second relative position is consistent with the first relative position or not is judged, if yes, the davit suspension arm only generates toughness deformation under the action of the simulated load, the generation of permanent deformation is avoided, and the structural strength and the rigidity of the davit suspension arm can meet the use requirements of hanging a lifeboat; otherwise, the davit suspension arm generates permanent deformation under the action of the simulated load, and the structural strength and the rigidity of the davit suspension arm are lower, so that the use requirement of hanging the lifeboat cannot be met.
Furthermore, the marking points are respectively arranged at the overlapping and coincident positions of the hammer line and the bottom end supporting piece.
Furthermore, the top end connecting piece comprises a first magnetic suction seat and a connecting rod, and the first magnetic suction seat is used for being fixed with the top side surface of the davit in a magnetic suction manner; the bottom end supporting piece comprises a second magnetic suction seat and a supporting rod, and the second magnetic suction seat is used for being fixed with the side surface, close to the bottom, of the davit hanging arm in a magnetic suction mode.
Further, first magnetism is inhaled the seat and is included the magnet, with magnet fixed connection's shell, the connecting rod is connected on the shell, and the connecting rod is along keeping away from the horizontal direction extension of magnet.
Furthermore, the connecting rod is a threaded rod, and the threaded rod is in threaded connection with a nut used for clamping the other end of the hammer line.
Further, a bearing is further arranged between the connecting rod and the shell, the shell is fixedly connected with an outer ring of the bearing, and the connecting rod is fixedly connected with an inner ring of the bearing.
Drawings
Fig. 1 is a schematic perspective view illustrating a davit boom according to an embodiment 1 of the method for detecting davit boom deformation of the present invention;
FIG. 2 is an enlarged view of a portion of the top end connector of FIG. 1;
fig. 3 is an enlarged view of a portion of the sole support of fig. 1.
In the figure: 1-top end connecting piece, 10-first magnetic suction seat, 100-magnet, 101-shell, 11-connecting rod, 12-nut, 13-bearing, 2-bottom end supporting piece, 20-second magnetic suction seat, 21-supporting rod, 3-hammer line, 4-gravity hammer and 5-davit suspension arm.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In embodiment 1 of the method for detecting deformation of a davit boom according to the present invention, as shown in fig. 1 to 3, the method for detecting deformation of a davit boom is used to test the structural performance of the davit boom 5, so as to ensure the stability and reliability of the davit boom 5 when hanging a lifeboat, in this embodiment, the davit boom 5 is C-shaped and made of high-strength steel, the bottom of the davit boom 5 is provided with a base, when the base is fixedly installed on a hull, the top of the davit boom 5 overhangs the outer side of a deck, a hoisting rope is connected to the lifeboat, and the weight of the whole lifeboat is borne by the davit boom 5. To accommodate the detection needs of different davit booms, in other embodiments, the davit boom may also be shaped as an inverted L or a bend. The detection assembly for detecting the deformation of the davit boom comprises a top end connecting piece 1, a bottom end supporting piece 2 and a hammer line 3 connected with a gravity hammer 4. The method for detecting the deformation of the davit suspension arm comprises the following steps:
firstly, fixedly installing a top end connecting piece 1 on the side surface of the top of a davit suspension arm 5 of a davit, and fixedly installing a bottom end supporting piece 2 on the side surface, close to the bottom, of the davit suspension arm 5 of the davit; in the first step, the top end connector 1 comprises a first magnetic attraction seat 10 and a connecting rod 11, and the top end connector 1 is magnetically attracted and fixed on the top side surface of the davit boom 5 through the first magnetic attraction seat 10. Wherein, first magnetism suction seat 10 includes magnet 100, with magnet 100 fixed connection's shell 101, magnet 100 is the strong magnetism permanent magnet of disc form, magnet 100's diameter is 50mm, thickness is 10mm, when magnet 100 magnetism is inhaled and is connected on steel keel block davit 5, just right magnetism between magnet 100 and keel block davit 5's the side is for 30Kg to magnetic attraction, the magnetic attraction that sideslips between magnet 100 and keel block davit 5 is 3Kg, the magnetic attraction that sideslips is greater than the weight of gravity hammer 4, the weight of gravity hammer 4 is 0.5Kg, guarantee that top end connecting piece 1 can remain the hookup location at the traction effort of gravity hammer 4 all the time, be unlikely to the problem that takes place to sideslip or drop.
In this embodiment, the housing 101 is a steel housing, the outer contour of the housing 101 matches the shape of the magnet 100, the magnet 100 is fixed to one side of the housing 101 by bonding, the connecting rod 11 is welded to the other side of the housing 101, and the connecting rod 11 extends in the horizontal direction away from the magnet 100. In other embodiments, in order to adapt to different use requirements, the shell can be designed into a structure with a surrounding edge and a bottom cover, the inner diameter of the surrounding edge is matched with the outer diameter of the magnet, the inner part of the surrounding edge forms a mounting cavity for accommodating the magnet, the magnet is fixedly connected with the bottom cover through screws, and the connecting rod is arranged on the other side of the bottom cover and extends in the horizontal direction away from the magnet. In order to improve the detection precision, the bearing 13 is further arranged between the shell 101 and the connecting rod 11, the outer ring of the shell 101 is fixedly connected with the outer ring of the bearing 13, the inner ring of the connecting rod 11 is fixedly connected with the inner ring of the bearing 13, the connecting rod 11 can rotate in the circumferential direction relative to the shell 101, when the davit boom 5 is subjected to analog load, the top end connecting piece 1 displaces along with the deformation of the davit boom 5, the connecting rod 11 can rotate in an adaptive mode, the hammer line 3 is prevented from being bent, and the accuracy of a detection result is guaranteed.
Correspondingly, the bottom end supporting member 2 comprises a second magnetic attraction seat 20 and a supporting rod 21, the structure of the second magnetic attraction seat 20 is the same as that of the first magnetic attraction seat 10, and the supporting rod 21 is fixedly connected to the outer side of the second magnetic attraction seat 20 and extends along the horizontal direction far away from the magnet. Unlike the top support 1, the support rod 21 is a polished rod for supporting the hammer line 3. Top connecting piece 1, bottom support piece 2 respectively with the davit between 5 magnetism inhale be connected, saved operations such as trompil, welding, avoid causing secondary destruction to davit 5 structure, detect the back only need hard with top connecting piece 1, bottom support piece 2 and davit 5 separation can, it is more convenient to detect the operation, can satisfy the user demand of repeated detection.
Step two, overlapping the hammer line 3 connected with the gravity hammer 4 on the support rod 21 of the bottom end support piece 2, and connecting the other end of the hammer line 3 with the top end connecting piece 1; in order to tie the hammer line 3 to the connecting rod 11, in the embodiment, the connecting rod 11 is a threaded rod, a pair of nuts 12 are connected to the threaded rod in a threaded manner, the distance between the two nuts 12 can be adjusted by screwing the nuts 12, so that the other end of the hammer line 3 is clamped or the hammer line 3 is loosened, and the hammer line 3 is clamped and fixed on the connecting rod 11 by screwing the nuts 12. Under the gravity action of the gravity hammer 4 and the supporting action of the bottom end support member 2, the hammer line 3 is tensioned to be in a broken line shape, namely, the part between the top end connecting member 1 and the bottom end support member 2 extends in an inclined straight line, and the part between the bottom end support member 2 and the gravity hammer 4 extends in a vertical straight line. Since the shape of the davit boom 5 is not changed in the unloaded state, the relative position between the top end and the bottom end of the davit boom 5 is not changed, and therefore, the weight line 3 can be stably held at this position. Specifically, the hammer line 3 is a steel wire rope with the diameter of 0.5mm, and the steel wire rope has the characteristics of strong toughness and difficulty in elastic expansion, so that the accuracy of a detection result is ensured; in other embodiments, the steel wire rope may be replaced with a copper wire rope or a nylon rope, etc.
Marking points on the hammer line 3, and determining the relative positions of the hammer line 3 and the davit jib 5 when the davit jib 5 is in a no-load state; in the present embodiment, the positions where the hammer line 3 overlaps the support rods 21 of the bottom end support 2 are marked respectively, and the marking points are painted on the hammer line 3 and the support rods 21 respectively by using a marking pen, so that when the davit arm 5 is in a no-load state, the marking points on the hammer line 3 completely overlap the marking points on the support rods 21, and the position is a first relative position. In other embodiments, the position of the mark point may be adjusted according to actual situations, for example: according to the height of the gravity hammer when the davit is in an unloaded state, marking points are made on the side surface of the davit corresponding to the height position, and the relative position of the hammer line and the davit can be displayed.
And step four, applying a simulation load to the davit suspension arm 5, determining a second relative position of the hammer line 3 and the davit suspension arm 5 after the simulation load is removed, and judging whether the second relative position is consistent with the first relative position. In this embodiment, a weight with a set weight can be hung on the top of the davit boom 5 for simulation, the gravity action of the lifeboat on the davit boom 5 is simulated by hanging the weight in a use state, the davit boom 5 is subjected to bending deformation under the simulated load, the distance between the top end and the bottom end of the davit boom 5 is changed, the hammer line 3 is moved downwards under the action of the gravity hammer 4, at the moment, the mark point on the hammer line 3 is staggered from the mark point on the support rod 21, and the staggered distance between the mark point on the hammer line 3 and the mark point on the support rod 21 indirectly reflects the deformation of the davit boom 5.
In the embodiment, the time for applying the simulated load is 24h, so that the stress of the davit boom 5 is closer to the actual use condition; in order to be able to adapt to different detection requirements, the time for applying the analog load may be 12h, 48h or other time lengths. Then, the simulated load is removed to observe whether the mark point on the hammer line 3 and the mark point on the support rod 21 can be recovered to the superposition position, if the mark point on the hammer line 3 and the mark point on the support rod 21 can be superposed again, namely the second relative position is consistent with the first relative position, the davit suspension arm 5 only generates toughness deformation under the action of the gravity load, and cannot generate permanent deformation, and the structural strength and the rigidity of the davit suspension arm can meet the use requirements of the suspended lifeboat; otherwise, the davit suspension arm 5 generates permanent deformation under the action of gravity load, and the structural strength and rigidity are lower, so that the use requirement of hanging the lifeboat cannot be met.
In other specific embodiments of the method for detecting deformation of a davit boom of the davit of the present invention, in order to meet different requirements, the form of the fixed connection between the top end connector, the bottom end support and the davit boom is not limited to the magnetic attachment in embodiment 1, and the top end connector and the bottom end support can be adhesively fixed on the side surface of the davit boom by using an adhesive; or the top end connecting piece and the bottom end supporting piece are fixed on the side surface of the davit of the boat frame in an attracting mode through the vacuum chuck.
In other specific embodiments of the method for detecting deformation of the davit boom of the davit, in order to meet different use requirements, a gasket can be sleeved on the connecting rod between the two nuts, the other end of the hammer line is clamped between the gasket and the nut, so that the effect of fixedly connecting the hammer line is achieved, the gasket is arranged, the clamping force on the other end of the hammer line is favorably improved, and the operation is more convenient when the nut is unscrewed.
The specific embodiments of the assembly for detecting deformation of a davit boom of the present invention are the same as the specific embodiments of the assembly for detecting deformation of a davit boom of the specific embodiment of the method for detecting deformation of a davit boom of the present invention, and are not described herein again.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A method for detecting deformation of a davit is characterized by comprising the following steps:
firstly, fixedly installing a top end connecting piece on the side surface of the top of the davit, and fixedly installing a bottom end supporting piece on the side surface of the davit, which is close to the bottom;
lapping the hammer line connected with the gravity hammer on the bottom end supporting piece, and connecting the other end of the hammer line with the top end connecting piece;
marking points on the hammer line or the davit suspension arm, and determining a first relative position of the hammer line and the davit suspension arm when the davit suspension arm is in a no-load state;
and step four, applying a simulation load to the davit, determining a second relative position of the hammer line and the davit after the simulation load is removed, and judging whether the second relative position is consistent with the first relative position.
2. The method for detecting the deformation of the davit boom according to claim 1, wherein in the third step, the positions where the hammer line overlaps the bottom end support member are marked respectively.
3. The method for detecting deformation of a davit boom of claim 1, wherein in the first step, the top end connector comprises a first magnetic attraction seat and a connecting rod, and the top end connector is fixed on the top side surface of the davit boom in a magnetic attraction manner; the bottom end supporting piece comprises a second magnetic suction seat and a supporting rod, and the bottom end supporting piece is fixed on the side face, close to the bottom, of the davit of the boat frame in a magnetic suction mode.
4. The method for detecting the deformation of the davit boom of claim 3, wherein the connecting rod is a threaded rod, and a nut for clamping the other end of the hammer line is connected to the threaded rod in a threaded manner.
5. A detection assembly for deformation of a davit is characterized by comprising a top end connecting piece, a bottom end supporting piece and a hammer line connected with a gravity hammer, wherein the top end connecting piece is fixedly arranged on the side surface of the top of the davit, the bottom end supporting piece is fixedly arranged on the side surface, close to the bottom, of the davit, the hammer line connected with the gravity hammer is lapped on the bottom end supporting piece, and the other end of the hammer line is connected with the top end connecting piece; the hammer line is provided with a mark point for marking the relative position of the hammer line and the davit when the davit is in a no-load state.
6. The davit boom deformation detection assembly of claim 5, wherein said marking points are respectively located at positions where the plumb line overlaps the bottom end support member.
7. The davit boom deformation detection assembly of claim 5, wherein the top end connector comprises a first magnetic attraction seat and a connecting rod, and the first magnetic attraction seat is used for being magnetically fixed with the top side surface of the davit boom; the bottom end supporting piece comprises a second magnetic suction seat and a supporting rod, and the second magnetic suction seat is used for being fixed with the side surface, close to the bottom, of the davit hanging arm in a magnetic suction mode.
8. The assembly of claim 7, wherein the first magnetic chuck comprises a magnet and a housing fixedly connected to the magnet, the connecting rod is connected to the housing, and the connecting rod extends in a horizontal direction away from the magnet.
9. The davit boom deformation detection assembly of claim 7, wherein said connecting rod is a threaded rod, said threaded rod being threadedly connected with a nut for clamping the other end of the hammer line.
10. The assembly according to claim 8, wherein a bearing is disposed between the connecting rod and the housing, the housing is fixedly connected to an outer ring of the bearing, and the connecting rod is fixedly connected to an inner ring of the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911034148.6A CN110749430A (en) | 2019-10-28 | 2019-10-28 | Method and assembly for detecting deformation of davit suspension arm of davit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911034148.6A CN110749430A (en) | 2019-10-28 | 2019-10-28 | Method and assembly for detecting deformation of davit suspension arm of davit |
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| CN110749430A true CN110749430A (en) | 2020-02-04 |
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| CN201911034148.6A Pending CN110749430A (en) | 2019-10-28 | 2019-10-28 | Method and assembly for detecting deformation of davit suspension arm of davit |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081511A (en) * | 2006-05-29 | 2007-12-05 | 韩宏波 | Multifunctional barrier-crossing universal magnet wheel robot type working vehicle |
| CN102345390A (en) * | 2011-07-21 | 2012-02-08 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Method for compensating for deflection of concrete pump truck arm support |
| CN108614933A (en) * | 2018-04-24 | 2018-10-02 | 中船黄埔文冲船舶有限公司 | Moulding bed reversible deformation data capture method, device and computer readable storage medium |
| CN109186530A (en) * | 2018-09-10 | 2019-01-11 | 中国冶集团有限公司 | A method of monitoring boom curvature |
-
2019
- 2019-10-28 CN CN201911034148.6A patent/CN110749430A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081511A (en) * | 2006-05-29 | 2007-12-05 | 韩宏波 | Multifunctional barrier-crossing universal magnet wheel robot type working vehicle |
| CN102345390A (en) * | 2011-07-21 | 2012-02-08 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Method for compensating for deflection of concrete pump truck arm support |
| CN108614933A (en) * | 2018-04-24 | 2018-10-02 | 中船黄埔文冲船舶有限公司 | Moulding bed reversible deformation data capture method, device and computer readable storage medium |
| CN109186530A (en) * | 2018-09-10 | 2019-01-11 | 中国冶集团有限公司 | A method of monitoring boom curvature |
Non-Patent Citations (1)
| Title |
|---|
| 付荣柏编著: "《起重机钢结构制造工艺》", 30 June 2010 * |
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Application publication date: 20200204 |