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Quantitative selection process parameters


Vibration Aging Process principle is that: when (σ) + (σ remnant movement) ≥ σ after, σ will be smaller residues (of which: σ residual for the residual stress field, σ is the limitation in the dynamic dynamic stress field, σ is the limitation threshold ).  Therefore, σ certain circumstances to achieve the aging effect, the first prescription should be disabled before the detection of σ, then the limitation should also be detected in the σ movement.

 In fact, the vast majority of aging operations are used as acceleration sensors, are marked by reference JB/T5926-2005 this line to control the acceleration value is between the range of 1/3-2/3 peak acceleration, the effect is assessed qualitative.

 Because according to gn curve parameter is the choice of a qualitative choice corresponds to the acceleration values were speed, while the corresponding values of the same acceleration there are many different speed, the operator can not know in the end should choose a speed.  And because then the dynamic stress σ d is not the same, so the choice of qualitative parameters will lead to a serious and sometimes cause electrical wear, and sometimes no effect workpiece situation, if according to ε d-n or σ d-n curve of the frequency of choice limitation choose the same ε d, or σ d corresponding to the very minimum frequency. Therefore, residual σ is known, we should do so through the strain gauge sensors and then according to σ d-n σ curves of quantitative selection action corresponds to n, to make to achieve the best results.

 Readers recommend that users refer to the following concepts:
 Process parameters, quantitative selection, equivalent stress, gn curve, gt curve, dynamic strain on the speed curve, aging curve, scanning curve, acceleration of the time curve