Product use:
The simulated level 3 highway bump test bench is suitable for the highway transportation acceleration simulation test of products transported by trucks to determine whether the products can adapt to the expected transportation vibration environment. The highway transportation acceleration simulation test refers to the test on the simulation bench, which increases the test value of simulated transportation vibration to shorten the transportation simulation test time and conducts a test consistent with the statistical characteristics of fatigue cumulative damage in the automobile transportation environment.
Product Overview:
The simulated three-level highway bump test bench is used to test the ability of various items with specific loads to withstand actual road conditions during highway transportation, so as to obtain the impact of actual road conditions on items in the laboratory, thereby providing a basis for evaluating or confirming the items and their packaging.
Meet the standards:
QJ815.2 Ministry of Aerospace Industry Standard "Requirements and Methods for Accelerated Simulation Tests for Road Transport of Products"
Simulated road conditions:
Intermediate road surface of third-class highway, intermediate road surface of fourth-class highway, low-class road surface
Working principle:
The simulated automobile transport test bench mechanically simulates the vibration environment of the automobile during driving on the road and reproduces it in the laboratory. The design idea is to use the principles of probability theory and random control theory on the basis of statistics. At the same time, since the vibration of the car compartment in the up and down directions is broadband random vibration, it is difficult to reproduce the power spectrum mechanically. The idea of frequency band approximation is adopted to simulate broadband random vibration, and each frequency band contains a natural frequency (car natural frequency).
And the power of each frequency band satisfies:
δitable = δigas
Where δitable is the root mean square value of the acceleration of a point on the transport platform in the i-th frequency band; δigas is the root mean square value of the acceleration of a point on the car compartment in the i-th frequency band. In terms of vibration magnitude, the transport platform is consistent with the actual sports car. In terms of time, the time level of the transport platform and the actual sports car is 1:1, that is, the time during the experiment is equal to that of the actual sports car. The vibration of the transport platform is broadband random vibration, and its technical indicators should be described by the parameters describing random vibration, and cannot be confused with a single sinusoidal vibration.
Product Parameters
| Maximum test weight range (including fastening fixtures, etc.): |
0-5000kg (customizable) |
| Maximum test product size: |
5000×3000mm (length and width) |
| Test frequency range: |
10-30HZ |
| Vibration form: |
Broadband random vibration, sine wave (can simulate transportation road conditions) |
| Probability density function of instantaneous acceleration value: |
Approximate normal distribution |
| Simulated road surface: |
Intermediate road surface of Class III highway and intermediate and low-level road surface of Class IV highway |
| Amplitude range: |
≥0.35mm |
| Height of center of gravity of specimen: |
≤700mm |
| Continuous operation time of equipment: |
6 hours |
| Reinforcement level: |
1:1 |
| Control method: |
PLC touch screen interface control |
| Dimensions: |
Based on the actual size of the equipment |
| Equipment weight: |
About 8000kg |
| Power supply voltage: |
Three-phase five-wire system 380V±10% 50Hz |
| Approximate power usage: |
37KW |
| Environmental conditions: |
Temperature 0-40ºC Humidity ≤90% (25ºC) |
Product Description
Audited Supplier 
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