| Customization: | Available |
|---|---|
| Warranty: | One Year |
| Type: | Vibration Testing Machine |
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Transportation Simulation Vibration Testing Machine is suitable for level three highway transportation acceleration simulation tests of products transported by trucks to determine whether the products can adapt to the expected transportation vibration environment. Highway transportation acceleration simulation test refers to using the simulation platform to increase the test value of simulated transportation vibration to shorten the transportation simulation test time and conduct tests that are consistent with the statistical characteristics of cumulative fatigue damage in the automobile transportation environment. It can meet QJ815.2 test standard.
The simulated level 3 road bump test bed is to reproduce the vibration environment in the test when a simulated car is driving on the road. The method of frequency band approximation is used to simulate broadband random vibration. Each sub-band contains a main natural frequency and satisfies the power spectrum of the sub-band. The vibration parameters of the transportation platform are consistent with the actual road spectrum, and the rotation time of the test bench is equal to the actual time.
| Item | HD-A521-5 |
| Maximum test weight range (including fastening fixtures, etc.) | 0-600kg |
| Maximum test product size | 1500*1500mm (length and width) |
| Test table size | 1700*1700mm |
| Test frequency range | 10-30HZ |
| Vibration form | Broadband random vibration, sine wave (can simulate transportation highway conditions) |
| Acceleration instantaneous value probability density function | Approximately normal distribution |
| Simulated road surface | Intermediate pavement of third-class highways and medium and low-grade pavements of fourth-class highways |
| Amplitude range | ≥0.35mm |
| Height of center of gravity of specimen | ≤700mm |
| Equipment continuous operation time | 6 hours |
| Strengthening level | 1:1 |
| Control method | PLC touch screen interface control |
| Dimensions | Based on the actual size of the equipment |
| Equipment weight | About 2000kg |
| Voltage | Three-phase five-wire system 380V±10% 50Hz |
| Use power | 6KW |
| Environmental conditions | Environmental conditions: temperature 0-40ºC, humidity ≤90% (25ºC) |
This vibration tester mechanically simulates the vibration environment of a car driving on the road and reproduces it in the laboratory. The design idea is based on statistics and using the principles of probability theory and stochastic control theory to design. At the same time, since the vibration in the up and down direction of the car compartment is broadband random vibration, it is difficult to reproduce the power spectrum mechanically. The idea of sub-band proximity is used to simulate broadband random vibration. Each sub-band contains a natural frequency (the natural frequency of the car). principle, and the power of each frequency band satisfies:
δi table = δi car
δi table is the root mean square value of the i-th frequency band of a point acceleration on the transport table;
δi car is the root mean square value of the i-th frequency band of a point acceleration on the car compartment.
The transportation simulation vibration test table mainly includes a Sandbox, Hanging spring, Frame, Working table, -Leaf spring, Drum wheel, Rubber wheel, Chain drive mechanism, Letterpress etc.
1. Sandbox;
2. Hanging spring;
3. Frame;
4. Working table;
5. Leaf spring;
6. Drum wheel;
7. Rubber wheel;
8. Chain drive mechanism;
9. Letterpress
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