Changelog

All changes from the previous version are indicated in the specification as follows:

Changes from REXS version 1.3

Modified/extended contents

Overview of all changes from version 1.3 to version 1.4

Enhancements:

• Permitted data types
• Binary coding of: "Array values" and "Matrix values;" "Code Examples - Overview"
• Structured Point Clouds
• Modeling Shaft-Hub Connections
• S-N curves
• FKM evaluation points

Adjustments/clarifications:

• Interface Structure
  • The unit symbol for degrees is now "deg" instead of "°"
• Coordinate System
  • The gear_unit component should refer to itself as a reference component.
• Product Model
  • Clarification: multiple "ref" tags with the same role are not allowed in a relation.
• Attribute Database
  • Various modifications and enhancements. These are documented in the REXS database.

Overview of changes from version 1.2 to version 1.3

Enhancements:

• Modeling notches
• Modeling rolling element contact
• Modeling flank-tool manufacturing data relationships for all gears
• Modeling additional masses
• Referencing GDE and Klingelnberg neutral data files
• Application language in the REXS file header

Adjustments/clarifications:

• Interface Structure
  • File and folder references
  • Naming convention for bilaterally agreed extensions
• Modeling
  • Individual mesh-related gear data and gear flanks
  • Multiple casing components
  • FE reduction points not connected to the analytical model
  • Assigning lubricants to bevel gear and worm stages
• Attribute Database
  • Various modifications and enhancements. These are documented in the REXS database.

Overview of changes from version 1.1 to version 1.2.

Enhancements:

• Modeling flank modifications and deviations
• Modeling worm stages
• Parametric struts in planet carriers

Adjustments/clarifications:

• Interface version number
• Attribute Database
  • Various modifications and enhancements. These are documented in the REXS database.

 

 

Overview of all changes from version 1.0 to version 1.1

Enhancements:

• Modeling ring gear stages
• Modeling planetary stages
• Modeling FE and CAD assemblies
• .rexsz zip archives
• Extension of the attribute list for mechanical system calculations

Adjustments/clarifications:

• Interface Structure
• .rexs as file extension for XML files
• Naming convention for calculation attributes
• Management of missing attributes
• Product Model
  • Incomplete relations are not permitted
  • "order" in relations begins at 1 and increases in increments of 1
  • Permitted component types for various relations clarified/supplemented
• Modeling
  • Clarification of the "inner_part" and "outer_part" roles for bearings and couplings
  • All bearing rows and rolling elements of a rolling bearing must always be explicitly modeled
  • Option for assigning lubricants to stages
• Coordinate System
  • Definition of the origin for bevel gear and side plate components
• Attribute Database
  • Various modifications and enhancements. These are documented in the REXS database.