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Vibration Test Machine and Operation Procedure
- Ground Vehicle Standard
- J577_201509
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This SAE Recommended Practice provides procedures, and information to conduct vibration (impact) tests on lighting devices and their components as well as other safety equipment used on vehicles.
Rationale
Vibration machine is designed to simulate worst case road inputs to lamps. The 2005 version of SAE J577 documented a FMVSS compatible machine that could be suitable to qualify lamps. All lamps must also pass the FMVSS requirement but technology advancements and styling progression has resulted in large lamps being used on vehicles. The larger lamp with fixture cannot be contained within the platform on the SAE J577 2005 version (Example 1). Pre re-write FMVSS requires that the fixture does not overhang the vibration machine adapter plate, which cannot be done with large lamps and the current SAE J577 machine. To update SAE J577, an example of larger vibration machine (Example 2) is given in this standard and a minimum Grms value is added to validate machine performance. The Grms value sets the minimum performance of any size vibration machine. Enlarging the vibration machine is limited by the FMVSS requirement that during calibration a force gauge must measure between 60 -70 pounds when lifting the platform over the hammer and anvil area of the machine.
Recommended Content
| Ground Vehicle Standard | Tests for Signal and Marking Devices Used on Vehicles 2032 mm or More in Overall Width |
| Ground Vehicle Standard | Photometry Laboratory Accuracy Guidelines |
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Table 1 | Mounting base bill of material | |
| Table 2 | J577 Machine bill of material |
Issuing Committee
Test Methods and Equipment Stds Committee
The Test Methods and Equipment Standards Committee is part of the Lighting Systems Steering Committee that reports to the Motor Vehicle Council (MVC).
Reference
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