Applications
- Modal and structural analysis
- Electronic assembly test
- Laboratory experiments
- Small assembly and component test
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The shaker incorporate a lightweight moving armature which has been optimised to provide the lightest mass with a wide frequency range. Polypropylene flexures are bonded to the armature to provide axial support for the armature and test load as well as providing lateral and rotational restraint. The shaker body can be mounted into an optional cast trunnion frame which will permit adjustment of the axis of vibration through a range of ± 90 degrees. For other applications the vibration generator can be rigidly bolted to a suitable structure using threaded holes in the base of the machine body.
Where the 400 Series vibrator is required to stimulate large spring mounted structures (e.g. automobile chassis), an optional auxiliary suspension can be utilised. The auxiliary suspension provides the means of supporting the shaker body whilst it remains hanging vertically from the structure under test. Contrary to the normal action of the armature where it reciprocates in relation to a fixed body, the auxiliary suspension enables the obverse movement. The shaker body therefore becomes the moving mass. An alternative use for the auxiliary suspension can be to provide additional stiffness to the standard suspension, therefore aiding its support of a heavy payload.
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