Mechanical Integration and Testing Services
The Mechanical Integration and Testing Laboratory offers mechanical vibration testing, strain gauge measurements, accelerometer calibrations, design and high-level engineering consulting services required by the aerospace and defense industry, and can be extended to the automotive industry, medical equipment and industry in general.
From the space point of view, the stresses that the equipment (satellites, rockets and parts of these) will undergo during the most critical stage of their flight from the structural point of view are reproduced. This stage is the launch, when the launcher begins its race into space to put them into orbit, and during which these elements are subjected to great mechanical stresses (transmitted through the structure) and acoustic stresses (transmitted through the structure and the surrounding environment).
To reproduce these vibrations, special equipment called shakers are used to achieve two objectives: on the one hand, to qualify the parts by subjecting them to stresses greater than those they are expected to receive during flight, to ensure that the design is adequate. On the other hand, acceptance tests are also performed on components to be flown, to ensure that no errors have been made during their manufacture or assembly.
TESTINGS
Services
Planning and development of mechanical vibration
Design and validation of MGSEs
(mechanical support equipment)
Numerical, modal and structural simulation to predict the behavior of the parts to be tested
Analysis of test results
Accelerometers calibrations
Mechanical stress and strain testing using strain gauges
(strain gauges)
Engineering consulting services
Free fall tests
FEATURES
- Air treatment that guarantees a 100 K type environment, with a quantity of 100,000 particles per cubic foot of air (Fed-std-209E standard) and with controlled temperature and humidity (Temperature: 22±/- 3 °C, relative humidity: 55 ± 10%), complying with the ISO 8 standard (ISO14644 standard) of the "European Cooperation for Space Standardization" (ECSS).
- Laboratory equipped with "work islands" around each shaker, allowing integration and test preparation tasks to be performed at the foot of the machine, with an overhead crane for handling larger loads.
- Control room isolated from the testing sector, to provide greater comfort to personnel in the operation, at the same time reinforcing hearing protection and preventing impact risks due to detached parts.
- Satellite" testing room, without air treatment conditions, equipped with a shaker of lower load capacity and an Instron machine for tensile tests. This room is used for mechanical testing of parts or devices that do not require a controlled environment, or are not admissible in a clean room.
EQUIPMENT
Shakers
The equipment called shakers (electromechanical vibrators) have a similar operation to a loudspeaker used to listen to music. They are composed of a fixed part and a mobile part, but unlike the speaker, these equipments do not have the membrane to produce waves in the air and generate the noise. For vibration tests, the less noise generated, the better, although a lot of noise is generated anyway. That is why, when the tests are performed, the laboratory personnel work with the gates closed and use ear protectors.
The characteristics and capabilities of this equipment can be represented by the force and acceleration that each can develop. The laboratory has available equipment ranging from 5.12 kN force at 111gr to 105kN force at 150g.
LDS V9-HBT 1220
|
SYNUSOIDAL FORCE (peak) |
105 kN
|
|
ACCELERATION (sinusoidal peak) |
150 g
|
|
RANDOM FORCE (ms) |
105 kN
|
|
INTERNAL LOAD SUPPORT |
1800 kg |
|
ACCELERATION (random rms) |
70 g
|
|
VELOCITY (sinusoidal peak) |
3.0m/s |
|
DISPLACEMENT (peak-peak) |
- 76.2mm |
LDS V875-HBT 600
|
SYNUSOIDAL FORCE (peak) |
35.6 kN |
|
ACCELERATION (sinusoidal peak) |
112 g
|
|
RANDOM FORCE (ms) |
35.6 kN
|
|
INTERNAL LOAD SUPPORT |
600 kg
|
|
ACCELERATION (random rms) |
100 g
|
|
VELOCITY (sinusoidal peak) |
1.8m/s
|
|
DISPLACEMENT (peak-peak) |
- 76.2mm |
unholtz-dickie s-452/st
|
SYNUSOIDAL FORCE (peak) |
26.7 kN
|
|
ACCELERATION (sinusoidal peak) |
120 g
|
|
RANDOM FORCE (ms) |
26.7 kN
|
|
INTERNAL LOAD SUPPORT |
272 kg
|
|
ACCELERATION (random rms) |
100 g
|
|
VELOCITY (sinusoidal peak) |
3.4m/s
|
|
DISPLACEMENT (peak-peak) |
- 51mm |
LDS V780
|
SYNUSOIDAL FORCE (peak) |
5.12 kN |
|
ACCELERATION (sinusoidal peak) |
1088 m/s2 |
|
RANDOM FORCE (ms) |
4.23 kN |
|
INTERNAL LOAD SUPPORT |
100 kg |
|
ACCELERATION (random rms) |
490 m/s2 |
|
VELOCITY (sinusoidal peak) |
1.90 m/s |
|
DISPLACEMENT (peak-peak) |
- 25.4 mm |
tests
Random, sine and shock tests
Sinusoidal sweep test
Quasi-static test
(sine burst)
Resonance search, monitoring and evaluation
(RSTD)
Random-on-random trials
(ROR)
Sine-on-random assays
(SOR)
Shock Response Spectrum Synthesis
(SRS)
Fatigue tests
Time Waveform Replication
(TWR)
Vibration tests according to MIL-STD, DIN, ISO, IEC, SAE
CALIBRATORS
B&K Type 3629
Vibration transducer
Calibration system
HBM GENESIS 16t
HABM GENESIS 3i
SOKKIA NETI200 3D Station
Angular Appreciation: 1s
Linear Appreciation: 0.6mm + 2 ppm x D
LDS Dactron LASERUSB
UNHOLTZ-DICKIE APEX SL
FARO FaroArm Platinum P4
Single-point appreciation: 0.020 mm
Volumetric readability: 0.029 mm
PROCUREMENT INPUT CARDS
HBM AVAILABLE
GN3210
Basic/IEPE/Charge
250kS – 2 GB RAM
GN411
Bridge Amplifier
1 MS/s – 512 MB RAM
