Shock or bump test mainly simulate the impact effects of product and its components encountered in usage and transit process. Through standard and high-reproducibility instant energy exchange, you can analyze the product ability to tolerate the strong external stress and the degradation of structural weaknesses to quickly obtain the data of structure strength, anti-shock appearance and anti-drop. Shock tester is one of destructive experiments, and do destructive test on the product to evaluate the product reliability and monitor the consistency of production line.
Suitable shock test for aviation, aerospace, marine, military, consumer electronics, automobiles, home appliances and display devices.
Features:
Apply free-drop model; precisely simulate the actual environment.- Perform solid shock impact; no second rotating or displacing problem.
- Full digitizing control system offers high efficiency.
- Speed range is wide
- Fast in changing wave model.
- Comply with all commercial & military test specs.
Specifications
| Model | SKT50 | SKT100 | SKT200 | SKT300 | SKT600 | SKT1000 |
| Table size (cm) | 50*60 | 70*80 | 100*100 | 120*120 | 150*150 | 200*200 |
| Maximum Specimen Weight(Kg) | 50 | 100 | 200 | 300 | 600 | 1000 |
| Max acceleration(G) | half sine | 600 | 600 | 500 | 500 | 300 | 300 |
| saw-tooth waveform | 100 | 100 | 100 | 100 | 100 | 100 |
| square | 150 | 150 | 150 | 100 | 100 | 100 |
| Pulse Duration (ms) | half sine | 40~1 | 40~1 | 30~2 | 20~3 | 20~3 | 20~3 |
| saw-tooth waveform | 18~6 | 18~6 | 18~6 | 18~6 | 18~6 | 18~6 |
| square | 30~6 | 30~6 | 30~6 | 30~6 | 30~6 | 30~6 |
| Machine Dimension(cm) | 130*140*260 | 130*120*260 | 150*130*260 | 200*160*300 | 230*180*310 | 250*220*310 |
| Controller cabinet Dimension(cm) | W55*D50*H80 |
| Machine Weight(Kg) | 2300 | 3200 | 4200 | 8500 | 15500 | 19500 |
| Utility Requirements | 3-phase AC380V 50/60Hz 0.5~0.8MPa |
| Conforming standards | GB/T2423-2008 GJB1217 GJB360.23 GJB150 GJB548 MIL-STD-202F IEC-68-2-27 MIL-STD-883E MIL-STD-810F ISTA UL |
FAQ:
How do you attach the hardware you’re testing to your shaker?
By means of a fixture, usually aluminum or magnesium for lightness coupled with rigidity. They can be cast, or smaller fixtures machined from solid stock. Most fixtures are welded.
How do you control shakers?
If we’re looking for resonances in the product we’re testing, we command the shaker to shake the product at one frequency at a time but to vary that test frequency, to sweep it over a range of 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.
What are those resonances?Are they bad?
Have you ever noticed the steering wheel moving with rather large displacement amplitude, larger 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.
