Report Quasi Static Load Qualification Test
| Subject | Description |
|---|---|
| Testing Model | EQM unit |
| Product Description | Quasi-Static Load Report |
| Test Reason | To make sure that the CubeSat's structure can withstand the flight environment and ensure structural integrity. |
- Issue date: <Insert Date>
- Approved by: <Insert Name>
- Responsible Test Engineer: <Insert Name>
Quasi Static Load Qualification via Sine Burst
Testing Equipment
- EQM unit
- EQM adapter
- Vibration table (from Maxon)
- Vibration sensors
Purpose
- To make sure that the CubeSat's structure can withstand the flight environment and ensure structural integrity.
Test Method
- The test is inspired by the PUG of SpaceX
- The vibration sensors shall be mounted to the EQM. There places is defined on the Overview Structural Testing page.
- The EQM unit shall be mounted to the vibration table, with the EQM adapter as the interface.
- Duration: 1h per axis conducted on all axis
- The axial and lateral load factors should be taken from table 6-4 in the PUG.
- The test parameters as well as necessary criteria are mentioned in table 6-5 of the PUG.
- As soon as all the requirements are checked, the EQM unit will be exposed to 5 cycles of sine bursts with an input frequency < 2/3 of the CubeSat's first mode frequency.
Check Condition and Requirements
- The mass difference between the EQM and the flight model should not exceed 2% (table 6-5 of PUG).
- Check that the vibration sensor is recording and working properly.
- Check that the connection between vibration table and EQM adapter, as well as the connection between EQM adapter and EQM are rigid, to ensure proper transfer of the load.
- After the sine burst cycles, manually inspect the EQM for any damages.
Test Results
<Describe the results of the test in a short fashion>
Test Judgement
- Measured acceleration should meet target acceleration and the EQM unit should remain fully intact.
Appendix
Photo of testing
<Insert picture of the exact testing configuration>
Testing data
<Insert a table or diagram of the exact output of the test (without intepretation)>