ANSYS中的LDIV命令——把一条线划分为多段线
软件: ANSYS
An InDepth Technical Analysis of ANSYS Commands for Precise Line Division
Title: Detailed Commands and Procedures for Line Division in ANSYS: LDIV, NL1, RATIO, PDIV, NDIV, and KEEP, with Utilization and Examples
Abstract:
This paper delves into the intricate mechanisms of ANSYS commands related to line division, offering a comprehensive guide for effective usage within the ANSYS Preprocessor. The focus is on the commands LDIV, NL1, RATIO, PDIV, NDIV, and KEEP, which significantly impact the design and analysis of mechanical components. The piece also elucidates on the operating procedures to utilize these commands effectively, along with a sample example to illustrate practical application. A detailed reference to ANSYS HELP section 15.0 is provided for readers seeking a comprehensive understanding and for troubleshooting purposes.
Commands Overview:
LDIV
The LDIV command is pivotal for dividing a line ('NL1') into segments with customizable specifications. The parameter NL1 defines the target line (positive value for the greater starting point, negative value for the lesser, or 'ALL' to target a set of selected lines), positioning the division along that line. The RATIO parameter sets the relative size of the new line to be created at the division point, relative to the total length of the original line section. This value must strictly fall between 0 and 1. The PDIV parameter designates the new point created on the line where the division occurs, with defaults set for minimal usage. NDIV specifies the number of new lines generated; the default is 2, but this can be increased to create more segmentations.
The KEEP parameter acts as an option to preserve (value 0) or remove (values 1 or 2) the original segmented line, enabling parallel creation of new lines without altering the original geometry.
Operating Pathways:
The direct command input involves initiating the Preprocessor—>Modeling—>Operate—>Booleans—>Divide sequence, specifying either Line into 2 Ln's, Line into N Ln's, or Lines w/ Options for a more customized approach, as mentioned in the figure (mainly types 1 and 2), guiding users through stepbystep procedures for efficient line division operations.
Case Study:
The provided sequence /PREP7 K,1,0,0,0 K,2,2,0,0 K,3,1,0,0 LSTR,1,2 LDIV,1,0,3 K,4,1.5,1,0 LDIV,2,0,4 LDIV,1,0.5,,3 demonstrates a practical implementation of the commands. The output, showcased in Figure 3, conveys the proper execution's outcome, highlighting the segmented lines with precision.
Comprehensive References:
For the most exhaustive and uptodate information, ANSYS HELP 15.0 should be the primary referred material. This section holds invaluable insights for advanced users, detailing the nuances not covered in the initial article. It also offers troubleshooting guidelines and references to specific operations and functions, enhancing the user's capability to address complexities beyond the scope of this analysis.
This article consolidates the theoretical understanding and practical application of line division commands in ANSYS, providing a definitive resource for users aiming to execute precise engineering analyses without wandering into the pitfalls of manual or fragmented approaches.
Title: Detailed Commands and Procedures for Line Division in ANSYS: LDIV, NL1, RATIO, PDIV, NDIV, and KEEP, with Utilization and Examples
Abstract:
This paper delves into the intricate mechanisms of ANSYS commands related to line division, offering a comprehensive guide for effective usage within the ANSYS Preprocessor. The focus is on the commands LDIV, NL1, RATIO, PDIV, NDIV, and KEEP, which significantly impact the design and analysis of mechanical components. The piece also elucidates on the operating procedures to utilize these commands effectively, along with a sample example to illustrate practical application. A detailed reference to ANSYS HELP section 15.0 is provided for readers seeking a comprehensive understanding and for troubleshooting purposes.
Commands Overview:
LDIV
The LDIV command is pivotal for dividing a line ('NL1') into segments with customizable specifications. The parameter NL1 defines the target line (positive value for the greater starting point, negative value for the lesser, or 'ALL' to target a set of selected lines), positioning the division along that line. The RATIO parameter sets the relative size of the new line to be created at the division point, relative to the total length of the original line section. This value must strictly fall between 0 and 1. The PDIV parameter designates the new point created on the line where the division occurs, with defaults set for minimal usage. NDIV specifies the number of new lines generated; the default is 2, but this can be increased to create more segmentations.
The KEEP parameter acts as an option to preserve (value 0) or remove (values 1 or 2) the original segmented line, enabling parallel creation of new lines without altering the original geometry.
Operating Pathways:
The direct command input involves initiating the Preprocessor—>Modeling—>Operate—>Booleans—>Divide sequence, specifying either Line into 2 Ln's, Line into N Ln's, or Lines w/ Options for a more customized approach, as mentioned in the figure (mainly types 1 and 2), guiding users through stepbystep procedures for efficient line division operations.
Case Study:
The provided sequence /PREP7 K,1,0,0,0 K,2,2,0,0 K,3,1,0,0 LSTR,1,2 LDIV,1,0,3 K,4,1.5,1,0 LDIV,2,0,4 LDIV,1,0.5,,3 demonstrates a practical implementation of the commands. The output, showcased in Figure 3, conveys the proper execution's outcome, highlighting the segmented lines with precision.
Comprehensive References:
For the most exhaustive and uptodate information, ANSYS HELP 15.0 should be the primary referred material. This section holds invaluable insights for advanced users, detailing the nuances not covered in the initial article. It also offers troubleshooting guidelines and references to specific operations and functions, enhancing the user's capability to address complexities beyond the scope of this analysis.
This article consolidates the theoretical understanding and practical application of line division commands in ANSYS, providing a definitive resource for users aiming to execute precise engineering analyses without wandering into the pitfalls of manual or fragmented approaches.
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