High Frequency Electrodynamic Vibration Test System Comply With
MIL-STD DIN ISO ASTM IEC
Applicable Standards: MIL-STD, DIN, ISO, ASTM, IEC, ISTA, GB, GJB, JIS, BS etc.
Applicable Industries: Automotive, Electronics, Aerospace, Vessel, Telecommunication,
Photoelectronics, Instrument etc.
Specifications
| Model | EV240 |
| Frequency(Hz) | 5-3000 |
| Max Exiting Force(kg.f) | 4000 |
| Max. Displacement (mmp-p) | 51 |
| Max. Acceleration(g) | 100 |
| Max. Velocity(m/s) | 2 |
| Payload(kg) | 500 |
| Armature Mass(kg) | 35 |
| Armature Diameter(mm) | φ342 |
| Vibration Generator Weight(kg) | 2800 |
| Vibration Generator Dimension L*W*H(MM) | 1235*1000*1230 |
| Power Amplifier | LA40K |
| Cooling Method | Forced Cooling |
| Power Amplifier Weight(kg) | 520 |
| Power Amplifier Dimension L*W*H(MM) | 620*960*2000 |
Utility
Requirements | 3-phase AC380V ±10% 50Hz |
| Aggregate Capacity(KW) | 56 |
Vibration Shaker Table simulates the vibration environment under the laboratory condition,
and test the impact strength as well as reliability of various
vibration test applications. In the laboratory, with the aid of
vibration testing system, model simulation of reproduction of
sinusoidal, random, resonant search and dwell, classical shock and
road simulation, etc. can be achieved. It is essential for product
quality assurance, new product research and development.
Features:
- Rugged suspension system and linear motion guiding, strong carrying
capacity, good guiding functions, high stability
- Load center airbag has high static stiffness and low dynamic
stiffness, strong carrying capacity, perfect performance on
amplitude variation
- High efficiency D class power switching, 3-sigma peak current,
provide finest power consumption and minimize harmonic distortion
- Quick self-diagnosis with safety interlock, high safety reliability
- Airbag shock isolation device for vibration platform without the
need of additional foundation, perfect reproduction of vibrational
wave and reduce vibration transmittance
- Provide horizontal and vertical expansion platform for different
application
- Simple controller operation
Frequently Asked Questions
1.How do you attach the hardware you're testing to your shaker ?
By means of a fixture, usually aluminium or magnesium for lightness
coupled with rigidity. They can be cast, or smaller fixtures
machined from soild stock. Most fixtures are welded.
2.How do you control shakers ?
If we're looking for resonances in the product we're testing, we
command the shaker to shaker the product at one frequency at a time
but to vary that test frequency, to sweep it over a range
frequencies. But more realistically, we command the shaker to
vibrate randomly and to excite all the resonances simultaneously.
Control commands go into the keyboard of a specially programmed
computer.
3.What are those resonances ? Are they bad ?
Have you ever noticed the steering wheel moving with rather a large
displacement amplitude, large than the input to the column? That
magnification is called resonance. Possibly it annoys you. There's
a slight chance that in a few years that whipping of the steering
column might cause bending fatigue failure. When we shake an
automotive or ship or land vehicle instrument, we're looking for,
for example, portions of printed wiring boards (PWBs) responding
with greater motion than we're inputting. That flexing may damage
PWB wiring, it may damage the attached components, and it will
damage the soldered connections between components and the PWB.
