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VIBRATION TEST LABORATORY
Area of our activity
Tests of dynamic properties of complete mechanical structures and their components. Tests cover measurements of quantitative relations between dynamic loads (in a form of forces and moments) and corresponding accelerations, velocities displacements and deformations of objects.
What are we doing
- Experimental determination of dynamic characteristics (frequencies and modes of resonance vibrations and generalised mass, stiffness and dumping) of tested structure,
- Special designed in Institute of Aviation, time efficient codes enables carring out tests and immediate results processing in minimal time,
- Ability of carrying out tests in a customer's place,
- Many years experience which assures high credibility of measurements.
What can we do
- Investigation of dynamic properties of complete structures or their fragments.
- Range of measured quantities:
- acceleration: 0.1 ÷ 5000 m/s2,
- displacements: 0.05 ÷ 20 mm,
- velocities: 0.01 ÷ 0.1 m/s,
- relative deformations: 10 µm/m ÷ 15000 µm/m,
- respectively in range of frequencies: 0,1 ÷ 15000 Hz.
- The knowledge of dynamic characteristics is indispensable for verification of dynamic calculations and activity aimed at improvement of safety and crew comfort and reliability.
Major equipment
- Computer-controlled exciting-measuring system installed into the laboratory track:
- 8 channels of vibration excitation in range 1 ÷ 2000 Hz,
- electrodynamic vibration exciters with max. forces 50 N, 200 N, 2000 N, 8000 N,
- 200 measuring channels for recording signals from piezoelectric accelerometers sensors (mass 2 - 7 g, measuring range up to 200 m/s2).
- Computer-controlled, portable measuring system:
- 64 measuring channels, max. sampling frequency 300 kHz,
- acceleration sensors mass 5.4 g, measuring range up to 500 m/s2.
Who we worked for
- Resonance tests:
- gliders: PW-5 (Warsaw Technical University), "FOX" (E. Marganski - Bielsko Biala), "Diana" (SZD - Bielsko Biala), “Marianne” (France),
- planes: "Skytruck", "Iskierka", "Iryda" (PZL Mielec), "Koliber 150A" (EADS PZL "Warszawa-Okecie"),
- helicopter "Sokol" (PZL-Swidnik),
- radar antennas IFF-12M, SMM-12, SAN-12 (PIT-Warszawa),
- Dynamic tests of air conditioner suspension from "Polonez" car (DAEWOO-FSO).
- Vibration resistance tests of devices BREN-R and CAR-1100 (PIT Gdansk).
Manager of Department:
Zbigniew LORENC M.Sc.M.E.
phone: (+48) 0 22 846 00 11 ext. 658
fax: (+48) 0 22 846 44 32
e-mail: zbigniew.lorenc@ilot.edu.pl |
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