High Performance Vibration Test Machine for MIL-STD 810F G
Compliance
The purpose of vibration testing is to make a series of
controllable vibration simulations in the lab, no matter generated
by natural or man-made vibration environments; such as waves, tidal
flaps, wind, earthquake or rain, and so on. It is to test if the
product is capable of sustaining the vibration environment exerted
from transporting or usage along its effective life cycle and
certify the standard of design & functional requirement of the
product. The value of vibration testing is to confirm the
reliability of products and effectively screen out the bad products
in the factory; avoiding damages occurred at arrival; and to assess
the failure analysis on the non-performing products; expecting to
reach a high standard, high-reliability products. The vibration
test stresses the continuity and fatigue; and contributes to the
understanding of the product’s status under vibration circumstance
in a normal environment, and avoids the product’s unpredictable
damage caused under certain vibrating frequency for a long time.
Vibration Testing Machine Block Diagram
Typical Vibration Test System
A Vibration Test System consists of four major components (shown in
Figure A-1):
1. The Shaker
2. The Power Amplifier
3. The Cooling Blower
4. The Measurement and Control System
a) Accelerometers and Cables
b) Charge Amplifier, depending on which type of Accelerometers.
c) Control System, sometimes including DATA Analysis Software
Vibration Testing Machine Specifications
| A50S44 Electrodynamic Shaker |
| Generated Force | Sine (Pk) | 5000 kgf |
| Random (Rms) | 5000 kgf @ISO5344 |
| Shock (Pk) | 10000 kgf @ 6ms |
| Useable Frequency(Only Armature) | DC-2,500Hz |
Maximum displacement (Peak-Peak): Continuous duty Shock |
51 mm 64 mm |
| Maximum Velocity | 2.0 m/s |
| Maximum Acceleration | 100g |
Fundamental Resonance Frequency (Nominal, Bare Table) | 1950Hz |
| Nominal armature moment | 500Nm |
Body Suspension Natural Frequency (Thrust Axis) | Lower than 3 Hz |
| Power Supply Requirement | 380V/50Hz 3 Phase |
| Armature Rated Current | 520 Arms |
| Armature Rated Voltage | 110 Vrms |
| Armature Coil Resistance | 0.025 Ω |
| Effective Nominal Armature Mass | 50kg |
| Armature Diameter | 440 mm |
| Vertical Load Support | 500 kg |
| Load Attachment Points (Standard) | 16 stainless steel M10 Inserts |
| Field Rated Current (DC) cold | 77 ADC |
| Field Rated Voltage (DC) cold | 260.2 V |
| Field Coil Resistance R20 | 1.65 Ω X 2 = 3.3 Ω |
| Drive Coil Isolation Resistance to Armature | >10MΩ |
| Drive Coil Isolation Resistance to Shaker Body | >10MΩ |
| Stray Flux Density with degauss coil | 10 gauss @ 110 mm above table |
| The height between shaker body to the armature table surface after
remove the top cover | 130mm |
| The maximum noise of the system | 112dB (A) @ 1 meter |
| LA50K Power Amplifier (Refer to amplifier manual for details) |
| Rated Output Capacity | 50 kVA |
Amplifier Frequency response (Sine mode, resistive load) | Full power from 5 Hz to 3000Hz rolling off to 3 dB at 4000 Hz with
6 dB/Octave slope |
| Distortion (at rated output) | From 5 Hz to 3000Hz less than 1% |
| Signal-Noise-Ratio | Greater than 65 dB |
| DC stability | Less than 0.05% of full output voltage with 10% change in line voltage. |
| |
Features:
The Vibration Testing Machine is associated with the shaker, high
power amplifier, and multi-functional controller. If conforms to
all military, national and commercial vibration testing
specifications and is an essential tool for modernized product
design, production, QC & QA work. Using it would make your product
be the best. The vibration response bandwidth is big and control
precision is high; able to simulate all waveforms and
specifications; easy to control; good extendibility and easy to
maintain.
- The coil structure earns Taiwan & USA patents.
The slip table is driven by a linear low-noise hydraulic pump.
Side & bottom plates are made of cast steel; own the feature of
high stiffness and low resonance.
The machine body is under air-bellow & hydraulic damper protection;
no anchor required.
The machine body is stable and won’t influence floor structure or
interfered by external vibration source.
Vibration Testing Machine service
1,12 months warranty, lifelong maintenance. If any quality problems on our side occurred in this period. we
promise we will give you a reply within 48 hours and the solution provide within 3 working days. We can offer operation video and English operation manual. We can
provide video-conference. If customers require on-site service,the
transport and travel expense shall be borne by the customer.
2, Help choose the right model with a series of service
3, Customization service-OEM, Design service, Buyer label
4, Cooperate with measuring if need the third party verification
