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High frequency testing with hydraulic zylinders up to 800 Hz needs excat knowledge of the whole oscilation circuit.
Previous
projects showed, that it is reasonable to customise the testing rig to the specific test requirements. The test should first be conducted on one
of our existing testing rigs. Afterwards the costs for the testing rig can be calculated more precisely. Thus the built up testing rig fits
perfectly to the specific test requirements.
This saves misunderstandings, money and at last annoyance.
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| Testing rig: |
- 7 kN hydraulic cylinder
- 100% hydrostatic piston
- piston displacement: ± 10 mm
- 38 l high response valve
- min. 12 l/min hydraulic unit
- extra stiff cross bar
- MTS Flex Test, sampling rate 10 kHz
- testing frequency up to 800 Hz; depending on displacement and forceamplitude
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Dynamic operational behaviour of hydraulic engine components at high frequency
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So far realised tests:
- forceamplitude: up to ± 5 N
- displacement: ± 0,1 mm at 800 Hz
- displacement: ± 0,2 mm at 400 Hz
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Mechanical components from injection systems
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- forceamplitude: ± 100 N
- displacement: ± 0,07 mm
- testing frequency: 300 Hz
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