Template:Weibull++ Event Log Folio Example
Weibull++ Event Log Folio Example
A manufacturer is tracking the failures in a product line that occurred between 8 a.m. January 1, 2004 and 5 p.m. June 24, 2005. When a failure occurred in a machine, the manufacturer recorded the following information:
- The machine and parts that failed.
- The time of occurrence.
- The time the repair was completed.
The manufacturer also recorded the dates and times for the maintenance activities. The manufacturer wants to analyze each component and obtain the failure and repair distributions for all recorded events. To do so, the manufacture decides to use Weibull++’s event log folio. Event logs, or maintenance logs, store information about a piece of equipment's failures and repairs. They provide useful information that can help companies achieve their productivity goals by giving insight about the failure modes, frequency of outages, repair duration, uptime/downtime and availability of the equipment.
The manufacturer’s data includes both failures and general events. A general event represents an activity that brings the system down but is not directly relevant to the reliability of the equipment, such as preventive maintenance, routine inspections and the like. In the data sheet, failures are marked with an F and events are marked with an E. The data is given in the following Table:
| System | F/E | Data Occurred | Time Occurred | Date Restored | Time Restored | Level 1 | Level 2 | Description |
| M-1 | F | Mar-01-04 | 11:00:00 AM | Mar-05-04 | 9:00:00 AM | Electric Saw | Motor | Electrical Short |
| M-1 | F | Apr-01-04 | 2:30:00 PM | Apr-03-04 | 11:00:00 AM | Conveyer | Belt | |
| M-1 | E | May-03-04 | 9:00:00 AM | May-06-04 | 12:00:00 PM | Lubrication | Lubrication | |
| M-1 | F | Aug-03-04 | 3:30:00 PM | Aug-04-04 | 9:00:00 AM | Electric Saw | Blade | Worn |
| M-1 | E | Sep-01-04 | 4:10:00 PM | Sep-02-04 | 4:00:00 PM | Inspections | Inspections | |
| M-1 | F | Dec-01-04 | 10:00:00 AM | Dec-02-04 | 3:00:00 PM | Conveyer | Wheels | Bearings Failure |
| M-1 | F | Jan-04-05 | 12:30:00 PM | Jan-07-05 | 7:20:00 AM | Hydraulic Arm | Hydraulic Lines | |
| M-1 | F | Feb-01-05 | 4:00:00 PM | Feb-02-05 | 7:00:00 AM | Hydraulic Arm | Piston | |
| M-1 | F | Mar-07-05 | 4:15:00 PM | Mar-09-05 | 9:00:00 AM | Conveyer | Belt | Unstable |
| M-1 | F | Apr-05-05 | 4:30:00 PM | Apr-06-05 | 4:45:00 AM | Electric Saw | Blade | Crack |
| M-1 | F | May-09-05 | 3:00:00 PM | May-11-05 | 10:00:00 AM | Hydraulic Arm | Motor | Electrical Short |
| M-1 | F | May-18-05 | 2:00:00 PM | May-19-05 | 12:30:00 PM | Hydraulic Arm | Hydraulic Lines | |
| M-1 | F | Jun-02-05 | 1:00:00 PM | Jun-03-05 | 3:00:00 AM | Electric Saw | Blade | |
| M-1 | F | Jun-20-05 | 11:00:00 AM | Jun-22-05 | 2:15:00 AM | Hydraulic Arm | Hydraulic Lines | |
| M-2 | F | Feb-04-04 | 9:00:00 AM | Feb-05-04 | 9:00:00 AM | Hydraulic Arm | Piston | |
| M-2 | F | Mar-08-04 | 9:00:00 AM | Mar-09-04 | 11:00:00 AM | Electric Saw | Motor | |
| M-2 | F | Apr-05-04 | 11:00:00 AM | Apr-06-04 | 10:00:00 AM | Hydraulic Arm | Arm | |
| M-2 | F | Apr-14-04 | 2:00:00 PM | Apr-16-04 | 2:30:00 AM | Hydraulic Arm | Hydraulic Lines | |
| M-2 | F | Jun-07-04 | 1:00:00 PM | Jun-09-04 | 2:00:00 AM | Hydraulic Arm | Piston | Crack |
| M-2 | F | Jul-23-04 | 4:15:00 PM | Jul-25-04 | 3:15:00 AM | Electric Saw | Motor | Vibration |
| M-2 | F | Aug-23-04 | 3:00:00 PM | Aug-25-04 | 3:30:00 AM | Conveyer | Belt | |
| M-2 | E | Sep-27-04 | 9:20:00 AM | Sep-27-04 | 3:15:00 PM | Cleaning | Cleaning | |
| M-2 | F | Nov-08-04 | 11:00:00 AM | Nov-09-04 | 9:15:00 AM | Hydraulic Arm | Motor | |
| M-2 | F | Jan-25-05 | 10:00:00 AM | Jan-26-05 | 2:45:00 AM | Electric Saw | Blade | Loose |
| M-2 | F | Feb-03-05 | 10:00:00 AM | Feb-03-05 | 3:20:00 PM | Conveyer | Wheels | |
| M-2 | F | Mar-23-05 | 12:00:00 PM | Mar-25-05 | 4:00:00 AM | Conveyer | Belt | |
| M-2 | E | Mar-28-05 | 10:45:00 AM | Mar-29-05 | 12:00:00 PM | lubrication | lubrication | |
| M-2 | F | May-10-05 | 3:00:00 PM | May-11-05 | 10:15:00 AM | Electric Saw | Motor | Noise |
| M-2 | E | May-23-05 | 4:00:00 PM | May-24-05 | 9:45:00 AM | Unrelated Shutdown | Unrelated Shutdown | |
| M-2 | F | Jun-01-05 | 4:30:00 PM | Jun-04-05 | 10:00:00 AM | Electric Saw | Blade | |
| M-2 | F | Jun-07-05 | 3:15:00 PM | Jun-08-05 | 4:00:00 AM | Hydraulic Arm | Motor | Noise |
| M-2 | F | Jun-21-05 | 9:30:00 AM | Jun-21-05 | 11:00:00 AM | Hydraulic Arm | Arm |