METHOD FOR MONITORING THE LOAD-BEARING CAPACITY OF PRODUCTS Russian patent published in 2023 - IPC G01N29/14 

FIELD: measuring technology.

SUBSTANCE: invention is used for monitoring the load-bearing strength of products using acoustic emission diagnostics. The essence of the invention lies in the fact that cluster selection of recorded location pulses is carried out in the field of relative energy (E_p) and average emission frequency descriptors (N_p/t_p, where N_p is the number of emissions, t_p is the pulse duration) for clusters of the lower (L), middle (M) and upper (U) energy levels, and calculation of the weight content of location pulses (W_L, W_M, W_U) in the specified clusters (W_i = (N_i/N_∑)⋅100%, where N_∑ is the total number of location pulses, N_i=_{L, M, U} is their number in the i-th cluster), while additionally calculating the current level of load-bearing capacity of products according to the corresponding formulas, which include parameters such as W_L and W_M: the weight content of location pulses recorded every second in the lower and middle energy clusters, [W_L] and [W_M] are their threshold values in case of structural material destruction, (W_L)_max ≥ 80%, (W_M)_min ≤ 20%, (W_U)_min < 1% are the extreme values of the parameters recorded during the transition from scattered to local damage accumulation.

EFFECT: increasing the reliability and accuracy of the assessment of the current level of load-bearing capacity of products using AE diagnostics.

1 cl, 3 dwg