Endurance Tester for Mission-Critical Mechanical Aerospace Component using NI cRIO
Ability to run tests unattended and overnight reduces operator labor and compresses test schedules
Client – Major Aerospace Component Supplier / Manufacturer
Challenge
The client had an older VB & PLC-based aerospace test system in place already, but it was obsolete. A new endurance test system needed to be developed to validate prototyped components (in this case, aircraft & aerospace bearings). Many of the prototypes are one-off, so it was important that the test system not destroy the component.
Solution
A new endurance test system was developed to validate prototyped aerospace components. The test system can be configured for automatic shutdowns so as not to destroy the component under test in the event of unexpected performance of electro-mechanical subsystem components. The updated endurance tester supports product validation by allowing the product to run under various test conditions (e.g. speed, load, oil flow, temperature) and collecting data for analysis.
Viewpoint developed the software and selected the NI hardware (other hardware was selected by the client).
Benefits
System Overview
The updated cRIO-based endurance tester incorporates configurable profiles, data logging, and automatic shutdown to allow for safer extended validation testing. LabVIEW FPGA and LabVIEW RT were used together to interface with the test hardware sensors and controls. LabVIEW as used create the HMI for the test system.
SOFTWARE FUNCTIONS |
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Closed loop control of bearing test oil flow |
Axial load control |
Driver for Emerson VFD |
E-Stop and safety management (shutdowns based on alarm limits) |
Data collection – temperature, pressure, flow, vibration, frequency |
Operator/Diagnostic GUI for control of system |
HARDWARE USED |
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NI CompactRIO (cRIO) |
NI C Series Current Input Module |
NI C Series Voltage Input Module |
NI C Series Temperature Input Module |
NI C Series Current Output Module |
NI C Series Analog Input Module |
NI C Series Sound and Vibration Input Module |
NI C Series Digital Module |
Emerson VFD (Variable Frequency Drive) |
INTERFACES / PROTOCOLS |
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TCP/IP |
TCP Modbus |