KR-20260063218-A - AUTOMATION SYSTEM FOR SHAFT ALIGNMENT DESIGN

KR20260063218AKR 20260063218 AKR20260063218 AKR 20260063218AKR-20260063218-A

Abstract

The shaft alignment design automation system according to the present invention comprises: a shaft data file generation step of receiving information regarding a shaft from a designer and generating a shaft data file containing data on the dimensions of the shaft; a first analysis file generation step of performing an analysis on a straight line using the shaft dimension file through a shaft alignment analysis program and generating a first analysis file containing data on the reaction force at each position of the shaft as a result; an offset calculation sheet generation step of receiving information regarding a bearing from a designer along with the first analysis file and generating an offset calculation sheet; an offset determination step of determining the offset of a bearing such that the load of the bearing satisfies a predetermined standard in the offset calculation sheet; a second analysis file generation step of performing a final analysis by reflecting the offset of the bearing through the shaft alignment analysis program and generating a second analysis file containing data on the reaction force at each position of the shaft as a result; and a report file generation step of generating a report file from the second analysis file.

Inventors

최병일
이지훈
장형운
정연호
김성희
김범식
이창훈
김태섭

Assignees

에이치디한국조선해양 주식회사
에이치디현대삼호 주식회사
에이치디현대중공업 주식회사

Dates

Publication Date: 20260507
Application Date: 20241030

Claims (10)

A shaft data file generation step of receiving information regarding a shaft from a designer and generating a shaft data file containing data on the dimensions of the shaft; A first analysis file generation step of performing an analysis on a straight line using the shaft dimension file through a shaft alignment analysis program, and generating a first analysis file containing data on reaction forces at each position of the shaft as a result; An offset calculation sheet generation step that generates an offset calculation sheet by receiving bearing information from the designer along with the above-mentioned first analysis file; An offset determination step for determining the offset of a bearing such that the load of the bearing satisfies a predetermined standard in the above offset calculation sheet; A step of generating a secondary analysis file by performing a final analysis by reflecting the offset of the bearing through the shaft alignment analysis program, and generating a secondary analysis file containing data on the reaction force at each position of the shaft as a result; and A report file generation step comprising generating a report file from the above secondary interpretation file, Shaft alignment design automation system.
In paragraph 1, The information regarding the shaft above includes a drawing of the shaft, the length of one end of the shaft, the diameter of one end of the shaft, the manufacturer of the engine to which the shaft is connected, and the type of engine to which the shaft is connected. Shaft alignment design automation system.
In paragraph 2, Design specifications for engine shafts according to the engine manufacturer and type are stored in the database, Shaft alignment design automation system.
In paragraph 1, The above shaft data file is in spreadsheet format, Shaft alignment design automation system.
In paragraph 1, The information regarding the above bearing includes the height of the intermediate bearing seat, the height of the intermediate bearing body, the height of the main sump tank, the height of the main bearing body, and the coefficient of thermal expansion for the main engine. Shaft alignment design automation system.
In paragraph 1, The above offset calculation sheet is in a spreadsheet format, Shaft alignment design automation system.
In paragraph 6, The above offset calculation sheet includes a cell for recording the offset of the bearing, a cell for recording data regarding the dimensions of the shaft, data regarding the primary analysis result and information regarding the bearing, and a cell for displaying the load of the bearing. The load of the bearing is a value calculated by a predetermined formula having the offset of the bearing as a variable and at least one of the data regarding the dimensions of the shaft, the data regarding the primary analysis result, and the information regarding the bearing as a constant, Shaft alignment design automation system.
In Paragraph 7, In the above offset determination step, the offset of the bearing is determined through an algorithm based on iterative analysis, Shaft alignment design automation system.
In paragraph 1, In the report file generation step, a report is generated by selectively extracting data located at a predetermined position or data containing predetermined text from the secondary interpretation file and inputting it into a predetermined format. Shaft alignment design automation system.
In paragraph 1, A database storage step further comprising storing at least some of the data input and output in the database, respectively, in the shaft data file generation step, the first analysis file generation step, the offset calculation sheet generation step, the offset determination step, the second analysis file generation step, and the report file generation step. Shaft alignment design automation system.

Description

Shaft Alignment Design Automation System {AUTOMATION SYSTEM FOR SHAFT ALIGNMENT DESIGN} The present invention relates to an automated shaft alignment design system. To achieve optimal shaft alignment, the design must incorporate analysis results that account for bearing reactions and bending moments generated by propeller thrust based on the vessel's cargo load. Furthermore, for some vessels, failing to account for hull deformation can lead to severe bearing damage, making such consideration essential. When aligning shafts under these conditions, drawings or reports with completed safety reviews must be prepared and submitted for classification society approval. Traditionally, the design and analysis engineering processes for this purpose were conducted manually, leading to problems such as excessive time delays and a high risk of human error. FIG. 1 is a flowchart of an automated shaft alignment design system according to an embodiment of the present invention. Figure 2 shows an example of a web platform screen for a designer to input information about a shaft. Figure 3 shows an example of a shaft drawing that can be input by a designer. Figure 4 shows an example of design specifications for an engine that can be stored in a database. Figure 5 shows an example of a web platform screen for a designer to input information about a bearing. Figures 6a and 6b show an example of an offset calculation sheet. An automated shaft alignment design system according to an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a flowchart of an automated shaft alignment design system according to an embodiment of the present invention. Referring to FIG. 1, the shaft alignment design automation system according to an embodiment of the present invention includes a shaft data file generation step (S1), a first analysis file generation step (S2), an offset calculation sheet generation step (S3), a bearing offset determination step (S4), a second analysis file generation step (S5), a report generation step (S6), and a database storage step (S7). In the shaft data file generation step (S1), information regarding the shaft is received from the designer, dimensions such as the length and diameter of the shaft are extracted therefrom, and a shaft data file containing data on the dimensions of the shaft is generated. The designer can input information about the shaft through a web platform configured, for example, as shown in Fig. 2. Information regarding the shaft may include, for example, a drawing of the shaft (A), the length of one end of the shaft (B), the diameter of one end of the shaft (C), the manufacturer of the engine to which the shaft is connected (D), the type of the engine to which the shaft is connected (E), etc. The drawing of the shaft may be an electronic file such as an image, CAD, or PDF showing the shape, length, diameter, etc. of the shaft, as shown in Fig. 3, for example. The length and diameter of one end of the shaft serve as the first element that serves as a reference for automatically extracting the respective length and diameter when the diameter increases or decreases as the shaft extends in the longitudinal direction from one end. For example, if the length and diameter of the leftmost end of the shaft in Fig. 3 are 50 (mm) and 630 (mm), respectively, the designer can input "50" and "630" as the length (B) and diameter (C) of one end of the shaft in Fig. 2, respectively. Meanwhile, the present system may include a database in which design specifications for engine shafts according to the manufacturer and type of the engine are stored. These design specifications for engine shafts are provided and stored in advance by the manufacturer of the engine and may be in the form of a table configured, for example, as shown in FIG. 4. Therefore, if a designer inputs the shaft drawing along with the length and diameter of one end of the shaft, and the manufacturer and type of the engine to which the shaft is connected, the dimensions such as the length and diameter of the shaft can be automatically extracted by reading the shaft drawing based on this information. As a result, a file containing data on the shaft dimensions (i.e., a shaft data file) can be generated. The shaft data file may be in a spreadsheet format, for example (e.g., *.xlsx). In this way, since shaft dimensions are automatically extracted and a shaft data file is generated when a designer inputs only partial information—such as the length and diameter of one end of the shaft, and the manufacturer and type of the engine to which the shaft is connected—along with the shaft drawing through a web platform, there is no need for the designer to manually input shaft dimensions one by one to use a shaft alignment analysis program, thereby reducing the designer's effort, time, and human error. In the first analysis file generation step (S2), an analysis of the straight line is performed using the sha