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Characteristics and performance of high acceleration impact test bench
Date: Mar 18,2024 Views: 145
Characteristics and performance of high acceleration impact test benchThe high-acceleration mechanical impact table is a device used to accurately measure and evaluate the impact resistance of products and product packaging. Its main features include an efficient table vibration damping device that can be installed quickly and easily without the need for a special foundation. In addition, the equipment can also be equipped with a high-acceleration generating device to conduct high-acceleration impact tests on small specimens, providing higher impact acceleration.
The following are some performance indicators and characteristics of the "Cycle Instrument" high-acceleration mechanical impact table:
Energy storage method: Within the limited impact distance limited by the equipment structure, the impact energy of a free fall can be obtained 5 times this distance.
Composite impact response technology: It can achieve accurate positive impact, absorb the high-frequency harmonics of the impact, and make the impact waveform on the impact table close to a sine wave.
Replaceable hammer arm: Different impact response tables can be replaced according to test indicators and specimen load, expanding the scope of use of the testing machine.
Separate impact damping system: Through the direct impact damping system, a high-efficiency damper is installed at the bottom to achieve vibration reduction after the impact is completed and automatically eliminate secondary impacts.
Safety protection device: The solid safety protection device can effectively prevent personal injury caused by improper installation of the test piece or damage to the impact device.
The calculation formula of the mechanical impact testing machine includes the calculation of the speed change, whose unit is m/s. According to different pulse waveforms (half sine wave, rear peak sawtooth wave, trapezoidal wave), the following formula can be used to calculate.
Calculation formula:
⊙ Half sine wave: △v=(π/2)AD×10ˉ³
⊙ Back peak sawtooth wave: △v=0.5AD×10ˉ³
⊙ Trapezoid wave: △v=0.9AD×10ˉ³
Among them, △v=velocity change, unit m/s; A=acceleration, unit m/s²; D=pulse duration, unit ms.
Example: The test piece has a mass of 30kg and a size of 400×400mm. It must meet the half-sine test specifications of 100g and 11ms. Then according to the formula half sine wave: △v=(π/2)AD×10ˉ³=2×1000(m/s²)×11(ms)÷3.14÷1000≈7<12.
If you want to know more about the high-acceleration mechanical impact table, you can visit the official website of "Environment Instrument" and consult relevant technical personnel.
