CN110926418A - Method, device, medium and terminal equipment for actually measuring inclination of stern tube bearing - Google Patents
Method, device, medium and terminal equipment for actually measuring inclination of stern tube bearing Download PDFInfo
- Publication number
- CN110926418A CN110926418A CN201911006217.2A CN201911006217A CN110926418A CN 110926418 A CN110926418 A CN 110926418A CN 201911006217 A CN201911006217 A CN 201911006217A CN 110926418 A CN110926418 A CN 110926418A
- Authority
- CN
- China
- Prior art keywords
- stern tube
- bearing
- inclination
- mounting
- ship
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a method for actually measuring the inclination of a stern tube bearing, which comprises the following steps: the stern tube is supported and placed according to the support arrangement condition on the ship and the installation state of the stern tube on the ship is simulated; measuring the actual gradient value of the mounting inner hole of the stern tube bearing after the stern tube bearing is supported and placed; obtaining a theoretical design gradient value, taking the reverse gradient of the actual gradient value as a correction compensation gradient of the theoretical design gradient value to obtain a bearing processing gradient value, and processing the stern tube bearing according to the bearing processing gradient; loading the processed stern tube shaft into the stern tube mounting inner hole in a pressure-bearing manner; integrally hoisting and mounting the pressed stern tube on a ship; pouring and installing a stern tube which is hoisted and installed on a ship; measuring the inclination value of the stern tube bearing after pouring and installation; the invention solves the problem that the inclination of the stern tube bearing can not meet the requirement of the centering calculation, ensures that the inclination of the stern tube bearing meets the requirement of the theoretical centering calculation, reduces the potential safety hazard of high-temperature damage risk of the bearing under different working conditions, and improves the power safety of ships.
Description
Technical Field
The invention relates to the field of stern tube bearing inclination measurement, in particular to a method, a device, a medium and terminal equipment for actually measuring the inclination of a stern tube bearing.
Background
The stern tube bearing is a cylindrical sliding bearing, and in a ship propulsion shafting, a shafting generally comprises a stern tube device which mainly comprises a stern tube and a front bearing and a rear bearing which are arranged in the stern tube, and the stern tube bearing is mainly used for supporting and bearing the weight of the shafting (comprising a propeller, a propeller shaft, a middle shaft and the like) and the radial load generated by shafting motion. Because the propeller shaft has certain inclination at the stern tube bearing under the effect of the gravity and the motion load of the propeller shaft, the edge load of the rear end of the stern tube bearing is excessively concentrated, and under the severe working condition, the rear end of the stern tube bearing is easy to have the quality accident of damaging the bearing by overload high temperature, and the power safety of the ship is directly influenced. Therefore, when designing the shafting, usually, a certain inclination of backward inclination is designed on the stern tube rear bearing through theoretical shafting alignment calculation, and the stern tube bearing is processed according to the designed inclination, so that the included angle between the propeller shaft and the stern tube bearing is reduced, the shafting load distribution is more uniform, and the risk of high-temperature damage of the stern tube bearing is reduced. Therefore, it is important to ensure the correctness of the pitch after the final mounting of the stern tube bearing.
In the traditional stern tube bearing processing, the bearing inclination is affected to different degrees in the process, the final installation inclination of the stern tube bearing is affected by multiple factors such as manufacturing precision, installation precision and environmental conditions, the control difficulty is high, the condition that the deviation between the actual installed stern tube bearing inclination and the theoretical design inclination is large often occurs, and the shafting installation difficulty is high. When the inclination of the stern tube bearing measured in the final installation state exceeds the originally designed range, the correction calculator needs to recalculate according to the final result to see whether the requirements of classification society specifications can be met. If the requirement of classification society can not be met by verification, the shipyard is difficult to process, the processing workload is large and the period is long. Even if the calculation is passed, the measured inclination is usually smaller than the theoretical value, which will increase the relative angle between the bearing and the shafting and increase the risk of high temperature of the bearing, which is naturally unacceptable for the shipowner, and may therefore provide conditions for prolonging the quality guarantee. These are very disadvantageous for shipyards.
The prior art process can not adjust or correct the installation inclination of the stern tube bearing and can not eliminate the risks. Therefore, it is necessary to find a method for adjusting or correcting the inclination of the stern tube bearing at the processing or installation stage, so that the inclination of the stern tube bearing installed on the ship can reach a qualified state.
Disclosure of Invention
The invention provides a method, a device, a medium and a terminal device for actually measuring the inclination of a stern tube bearing, which are used for processing the bearing by taking the reverse inclination of an actual inclination value as the correction compensation inclination of a theoretical design inclination value, so as to solve the problem that the inclination of the stern tube bearing cannot meet the range of a theoretical value calculated in a calibration process, ensure that the inclination of the stern tube bearing after being actually installed meets the requirement of the theoretical value calculated in the calibration process, reduce the potential safety hazard of high-temperature damage risk of the bearing during operation under different working conditions and improve the dynamic safety of ships.
In order to solve the above technical problem, an embodiment of the present invention provides a method for actually measuring a stern tube bearing inclination, including:
after the stern tube is processed, the stern tube is supported and placed according to the support arrangement condition on the ship and the installation state of the stern tube on the ship is simulated;
measuring the actual gradient value of the mounting inner hole of the stern tube bearing after the support is placed;
obtaining a theoretical design gradient value, taking the reverse gradient of the actual gradient value as a correction compensation gradient of the theoretical design gradient value to obtain a bearing processing gradient value, and processing the stern tube bearing according to the bearing processing gradient;
loading the processed stern tube shaft into the stern tube mounting inner hole in a pressure-bearing manner;
integrally hoisting and mounting the pressed stern tube on a ship;
pouring and installing a stern tube which is hoisted and installed on a ship;
and measuring the inclination value of the stern tube bearing after pouring and installation.
And measuring the actual inclination value of the mounting inner hole of the stern tube bearing after the support is placed by adopting a laser measurement method as a preferable scheme.
Preferably, before the pouring and installing the stern tube hoisted and installed on the ship, the method further comprises the following steps: and carrying out centering treatment on the whole stern tube.
Preferably, the method for pouring and installing the stern tube is epoxy pouring and installing.
The embodiment of the invention also provides a device for actually measuring the inclination of the stern tube bearing, which comprises the following components:
the support placing module is used for supporting and placing the stern tube according to the support arrangement condition on the ship and simulating the installation state of the stern tube on the ship after the stern tube is processed;
the first measuring module is used for measuring the actual gradient value of the mounting inner hole of the stern tube bearing after the support is placed;
the bearing processing module is used for acquiring a theoretical design gradient value, taking the reverse slope of the actual gradient value as a correction compensation slope of the theoretical design gradient value to obtain a bearing processing gradient value, and processing the stern tube bearing according to the bearing processing gradient;
the press mounting module is used for press mounting the processed stern tube shaft into the stern tube mounting inner hole;
the hoisting and mounting module is used for hoisting and mounting the whole pressed stern tube to a ship;
the pouring installation module is used for pouring and installing the stern tube hoisted and installed on a ship;
and the second measuring module is used for measuring the inclination value of the stern tube bearing after pouring and installation.
As a preferred scheme, the first measurement module is specifically configured to: and measuring the actual inclination value of the mounting inner hole of the stern tube bearing after the support is placed by adopting a laser measurement method.
Preferably, before the stern tube hoisted and mounted on the ship is subjected to casting and mounting, the casting and mounting module is further configured to: and carrying out centering treatment on the whole stern tube.
Preferably, the method for pouring and installing the stern tube by the pouring and installing module is epoxy pouring and installing.
An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program; wherein the computer program, when running, controls an apparatus in which the computer readable storage medium is located to perform a method of actual measurement of stern tube bearing pitch as defined in any one of the above.
An embodiment of the present invention further provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, where the processor, when executing the computer program, implements the method for actually measuring the inclination of the stern tube bearing according to any one of the above items.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
the invention processes the bearing by taking the reverse slope of the actual slope value as the correction compensation slope of the theoretical design slope value, so as to solve the problem that the slope of the stern tube bearing cannot meet the range of the theoretical value calculated in the calibration, ensure that the slope of the stern tube bearing after the actual installation meets the requirement of the theoretical value calculated in the calibration, reduce the potential safety hazard of high-temperature damage risk of the bearing when the stern tube bearing operates under different working conditions, and improve the dynamic safety of the ship.
Drawings
FIG. 1: the invention is a flow chart of the steps of the actual measurement method of the bearing inclination of the stern tube;
FIG. 2: is a schematic diagram of the sagging phenomenon of the stern tube in the traditional implementation method.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a preferred embodiment of the present invention provides a method for actually measuring the inclination of a stern tube bearing, including:
s1, after the stern tube is processed, the stern tube is supported and placed according to the support arrangement condition on the ship in a workshop and the installation state of the stern tube on the ship is simulated;
s2, measuring the actual inclination value of the mounting inner hole of the stern tube bearing after the support is placed; in this embodiment, the actual inclination value of the stern tube bearing mounting inner hole after the support is placed is measured by a laser measurement method.
S3, obtaining a theoretical design inclination value, taking the reverse inclination of the actual inclination value as the correction compensation inclination of the theoretical design inclination value to obtain a bearing processing inclination value, and processing the stern tube bearing according to the bearing processing inclination;
s4, press-fitting the processed stern tube shaft into the stern tube mounting inner hole;
s5, integrally hoisting and mounting the pressed stern tube on a ship;
s6, pouring and installing the stern tube hoisted and installed on a ship; in this embodiment, before the pouring and installing the stern tube hoisted and installed on the ship, the method further includes: and carrying out centering treatment on the whole stern tube. In this embodiment, the method for pouring and installing the stern tube is epoxy pouring and installing.
And S7, measuring the inclination value of the stern tube bearing after pouring and installation.
As shown in fig. 2, the main influencing factors causing the bearing slope deviation are analyzed: the stern tube is supported on the ship usually by the front and back ends supported by adjusting bolts, so that the stern tube can sag under the action of the self gravity of the stern tube. The sagging phenomenon of the stern tube in fig. 2 results in a relative decrease of the inclination of the fore and aft bearings of the stern tube after final installation.
The mounting technical process of the stern tube bearing widely adopted in the ship industry at present does not correct the influence factors of the sagging phenomenon caused by the gravity of the stern tube in the whole construction process, and the deviation of the inclination of the stern tube bearing after final mounting and the inclination required by theoretical correction calculation is large. The invention discloses an innovative method for actually measuring the inclination of a stern tube bearing, which can effectively control the inclination of the stern tube bearing, can actually measure and timely correct the sagging condition caused by the gravity of a stern tube in the bearing inclination processing process, ensures that the inclination of the stern tube bearing after actual installation meets the requirement of theoretical correction calculation, reduces the potential safety hazard of high-temperature damage risk of the bearing during operation under different working conditions, and improves the dynamic safety of a ship.
Correspondingly, the embodiment of the invention also provides a device for actually measuring the inclination of the stern tube bearing, which comprises the following components:
the support placing module is used for supporting and placing the stern tube according to the support arrangement condition on the ship and simulating the installation state of the stern tube on the ship after the stern tube is processed;
the first measuring module is used for measuring the actual gradient value of the mounting inner hole of the stern tube bearing after the support is placed; in this embodiment, the first measurement module is specifically configured to: and measuring the actual inclination value of the mounting inner hole of the stern tube bearing after the support is placed by adopting a laser measurement method.
The bearing processing module is used for acquiring a theoretical design gradient value, taking the reverse slope of the actual gradient value as a correction compensation slope of the theoretical design gradient value to obtain a bearing processing gradient value, and processing the stern tube bearing according to the bearing processing gradient;
the press mounting module is used for press mounting the processed stern tube shaft into the stern tube mounting inner hole;
the hoisting and mounting module is used for hoisting and mounting the whole pressed stern tube to a ship;
the pouring installation module is used for pouring and installing the stern tube hoisted and installed on a ship; in this embodiment, before the cast-on installation of the stern tube hoisted and installed on the vessel, the cast-on installation module is further configured to: and carrying out centering treatment on the whole stern tube. In this embodiment, the method for the cast mounting module to cast mount the stern tube is epoxy cast mounting.
And the second measuring module is used for measuring the inclination value of the stern tube bearing after pouring and installation.
An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program; wherein the computer program, when running, controls the apparatus on which the computer readable storage medium is located to perform the method for actually measuring the inclination of the stern tube bearing according to any of the embodiments described above.
An embodiment of the present invention further provides a terminal device, where the terminal device includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and the processor, when executing the computer program, implements the method for actually measuring the inclination of the stern tube bearing according to any of the above embodiments.
Preferably, the computer program may be divided into one or more modules/units (e.g., computer program) that are stored in the memory and executed by the processor to implement the invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used for describing the execution process of the computer program in the terminal device.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, etc., the general purpose Processor may be a microprocessor, or the Processor may be any conventional Processor, the Processor is a control center of the terminal device, and various interfaces and lines are used to connect various parts of the terminal device.
The memory mainly includes a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function, and the like, and the data storage area may store related data and the like. In addition, the memory may be a high speed random access memory, may also be a non-volatile memory, such as a plug-in hard disk, a Smart Memory Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, or may also be other volatile solid state memory devices.
It should be noted that the terminal device may include, but is not limited to, a processor and a memory, and those skilled in the art will understand that the terminal device is only an example and does not constitute a limitation of the terminal device, and may include more or less components, or combine some components, or different components.
The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.
Claims (10)
1. A method for actually measuring the inclination of a stern tube bearing is characterized by comprising the following steps:
after the stern tube is processed, the stern tube is supported and placed according to the support arrangement condition on the ship and the installation state of the stern tube on the ship is simulated;
measuring the actual gradient value of the mounting inner hole of the stern tube bearing after the support is placed;
obtaining a theoretical design gradient value, taking the reverse gradient of the actual gradient value as a correction compensation gradient of the theoretical design gradient value to obtain a bearing processing gradient value, and processing the stern tube bearing according to the bearing processing gradient;
loading the processed stern tube shaft into the stern tube mounting inner hole in a pressure-bearing manner;
integrally hoisting and mounting the pressed stern tube on a ship;
pouring and installing a stern tube which is hoisted and installed on a ship;
and measuring the inclination value of the stern tube bearing after pouring and installation.
2. The method of claim 1 wherein the actual inclination of the stern tube bearing mounting bore is measured by laser measurement after said support is placed.
3. The method of claim 1, further comprising, prior to said pouring of said stern tube mounted by hoisting on a ship: and carrying out centering treatment on the whole stern tube.
4. The method of claim 1, wherein the cast mounting of the stern tube is epoxy cast mounting.
5. An actual measurement device of stern tube bearing inclination, comprising:
the support placing module is used for supporting and placing the stern tube according to the support arrangement condition on the ship and simulating the installation state of the stern tube on the ship after the stern tube is processed;
the first measuring module is used for measuring the actual gradient value of the mounting inner hole of the stern tube bearing after the support is placed;
the bearing processing module is used for acquiring a theoretical design gradient value, taking the reverse slope of the actual gradient value as a correction compensation slope of the theoretical design gradient value to obtain a bearing processing gradient value, and processing the stern tube bearing according to the bearing processing gradient;
the press mounting module is used for press mounting the processed stern tube shaft into the stern tube mounting inner hole;
the hoisting and mounting module is used for hoisting and mounting the whole pressed stern tube to a ship;
the pouring installation module is used for pouring and installing the stern tube hoisted and installed on a ship;
and the second measuring module is used for measuring the inclination value of the stern tube bearing after pouring and installation.
6. The actual stern tube bearing inclination measuring device according to claim 5, wherein the first measuring module is specifically configured to: and measuring the actual inclination value of the mounting inner hole of the stern tube bearing after the support is placed by adopting a laser measurement method.
7. The stern tube bearing inclination actual measurement device according to claim 5, wherein said cast mounting module is further adapted to, prior to said cast mounting of the stern tube hoisted mounted to the vessel: and carrying out centering treatment on the whole stern tube.
8. The device for the actual measurement of the bearing inclination of the stern tube according to claim 5, wherein the method for the cast mounting module to cast mount the stern tube is epoxy cast mounting.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored computer program; wherein the computer program, when executed, controls an apparatus in which the computer readable storage medium is located to perform the method of actual measurement of stern tube bearing pitch according to any of claims 1 to 4.
10. Terminal device, comprising a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, the processor when executing the computer program implementing a stern tube bearing inclination actual measurement method according to any of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911006217.2A CN110926418A (en) | 2019-10-22 | 2019-10-22 | Method, device, medium and terminal equipment for actually measuring inclination of stern tube bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911006217.2A CN110926418A (en) | 2019-10-22 | 2019-10-22 | Method, device, medium and terminal equipment for actually measuring inclination of stern tube bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110926418A true CN110926418A (en) | 2020-03-27 |
Family
ID=69849051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911006217.2A Pending CN110926418A (en) | 2019-10-22 | 2019-10-22 | Method, device, medium and terminal equipment for actually measuring inclination of stern tube bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110926418A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678499A (en) * | 2020-06-29 | 2020-09-18 | 沪东中华造船(集团)有限公司 | Method for measuring double slopes of rear bearing of stern tube |
| CN112357005A (en) * | 2020-09-29 | 2021-02-12 | 沪东中华造船(集团)有限公司 | Rotating disc type installation and centering method of ship tail pipe sealing device |
| CN113020943A (en) * | 2021-03-12 | 2021-06-25 | 河北京车轨道交通车辆装备有限公司 | Automatic compensation press-fitting method for wheel pair of railway vehicle |
| CN115711608A (en) * | 2022-11-04 | 2023-02-24 | 沪东中华造船(集团)有限公司 | Method for measuring double slopes of rear bearing of stern tube |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101664856B1 (en) * | 2015-12-24 | 2016-10-11 | 한국해양과학기술원 | Level Control Device Of Small Ships With A Variable Mast |
| CN107478140A (en) * | 2017-09-26 | 2017-12-15 | 上海沪东三造船舶配套有限公司 | A kind of machining and testing method for ensureing stern tube and its bearing and running well |
-
2019
- 2019-10-22 CN CN201911006217.2A patent/CN110926418A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101664856B1 (en) * | 2015-12-24 | 2016-10-11 | 한국해양과학기술원 | Level Control Device Of Small Ships With A Variable Mast |
| CN107478140A (en) * | 2017-09-26 | 2017-12-15 | 上海沪东三造船舶配套有限公司 | A kind of machining and testing method for ensureing stern tube and its bearing and running well |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678499A (en) * | 2020-06-29 | 2020-09-18 | 沪东中华造船(集团)有限公司 | Method for measuring double slopes of rear bearing of stern tube |
| CN111678499B (en) * | 2020-06-29 | 2022-02-22 | 沪东中华造船(集团)有限公司 | Method for measuring double slopes of rear bearing of stern tube |
| CN112357005A (en) * | 2020-09-29 | 2021-02-12 | 沪东中华造船(集团)有限公司 | Rotating disc type installation and centering method of ship tail pipe sealing device |
| CN112357005B (en) * | 2020-09-29 | 2023-11-07 | 沪东中华造船(集团)有限公司 | Rotating disc type installation and centering method for ship tail pipe sealing device |
| CN113020943A (en) * | 2021-03-12 | 2021-06-25 | 河北京车轨道交通车辆装备有限公司 | Automatic compensation press-fitting method for wheel pair of railway vehicle |
| CN115711608A (en) * | 2022-11-04 | 2023-02-24 | 沪东中华造船(集团)有限公司 | Method for measuring double slopes of rear bearing of stern tube |
| CN115711608B (en) * | 2022-11-04 | 2024-06-11 | 沪东中华造船(集团)有限公司 | Method for measuring dual slopes of rear bearing of stern tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110926418A (en) | Method, device, medium and terminal equipment for actually measuring inclination of stern tube bearing | |
| CN110955937B (en) | Stern tube bearing inclination simulation calculation method, device, medium and terminal equipment | |
| CN111667448B (en) | Image processing method, device and equipment | |
| EP3330423A1 (en) | Drum washing machine, and control method and apparatus for same | |
| EP3382562B1 (en) | Vehicle control device | |
| EP3671167A1 (en) | Load calculator and aircraft | |
| CN107478140A (en) | A kind of machining and testing method for ensureing stern tube and its bearing and running well | |
| CN112528388B (en) | Suspension bracket strength analysis method and device, storage medium and terminal equipment | |
| CN116167529B (en) | Target unmanned aerial vehicle weight prediction method, device and storage medium | |
| CN117129179A (en) | Mach number correction method for double-support test under continuous wind tunnel wing | |
| CN109273122B (en) | System parameter adjusting method and device under ELPO working condition and terminal equipment | |
| CN108763693B (en) | Ship equipment weight distribution statistical method based on three-dimensional model | |
| CN104570941A (en) | Precision compensating system and method of positioning device | |
| KR101215633B1 (en) | Bearing offset measuring method | |
| WO2020103761A1 (en) | Bearing maintenance timing acquisition method | |
| CN113020286A (en) | Stability control method and device in rolling process | |
| CN111577544A (en) | Fan control method, device, equipment and storage medium | |
| CN118171411A (en) | Design method and device for lightweight domain controller shell structure and electronic equipment | |
| CA2894011C (en) | Fault isolating altitude splits | |
| US20180136636A1 (en) | Machine tool feed drive design system and method thereof | |
| Šverko | Investigation on hull deflection and its influence on propulsion shaft alignment | |
| CN113211160B (en) | Ball screw pair thermal deformation compensation system and method based on extreme gradient lifting | |
| CN115140267B (en) | New installation process of large ship shafting | |
| EP4083588A1 (en) | Torque estimation device, torque estimation method, and torque estimation program | |
| CN118153136A (en) | Finite element method-based connector design method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200327 |
|
| RJ01 | Rejection of invention patent application after publication |