File Exchange > Data Analysis >    Rainflow Counting

Author:
OriginLab Technical Support
Date Added:
4/6/2023
Last Update:
4/27/2023
Downloads (90 Days):
67
Total Ratings:
1
File Size:
268 KB
Average Rating:
File Name:
Rainflow_C...ng.opx
File Version:
1.00
Minimum Versions:
License:
Type:
App
Summary:

Perform rainflow cycle counting algorythm for fatigue analysis.

Screen Shot and Video:
Description:

Purpose

This App can be used to perform the ASTM E1049-85 rainflow cycle counting algorythm for fatigue analysis.

Notes: This App needs Embedded Python and rainflow library.

Installation

  1. Download the clusterNum.opx file, then drag-and-drop onto the Origin workspace.
  2. The App will start downloading dependent Python libraries. Wait a few minutes until the download is completed and restart Origin.

Operation

  1. Activate a worksheet. Click the App icon to bring up the dialog.
  2. Select XY columns of time-stress data.
  3. Select quantities to report.
    • Range: Maximum stress range of a cycle.
    • Mean: Average stress range of a cycle.
    • Count: Number of cycles (an unmatched half-cycle is counted as a half cycle).
    • Cycle index: 1-based start and end index of a cycle.
    • Cycle X: Start and end X of a cycle.
    • Range Bin Type: Output cycle ranges binned by rounding to a specified number of digits, number of bins or bin size.
  4. Click OK.

Sample OPJU File
This app provides a sample OPJU file.  Right click the App icon in the Apps Gallery window, and choose Show Samples Folder from the short-cut menu. A folder will open. Drag-and-drop the project file Rainflow Counting Sample.opju from the folder onto Origin. The Notes window in the project shows detailed steps.
Note: If you wish to save the OPJU after changing, it is recommended that you save to a different folder location (e.g. User Files Folder).

Reference

https://pypi.org/project/rainflow/

Updates:

Reviews and Comments:
02/12/2024KrishnarajWhere can I get rainflow library