The paper shows the results of formulation and solution of inverse problems for strength compounded elements electronics. Considered and studied real construction - micro-module. A parameter identification of a mathematical model, as close to the real conditions of the structure is offered. Decomposition of a mixture of probability distributions experimentally obtained values of destructive forces in the tests carried out. The tolerances of valid values of the mathematical model by solving the optimization problem are calculated. For the case where the physical and mechanical characteristics of the elements do not correspond to those found with the limits of tolerances and do not provide the structural strength, proposed some solutions to this problem. In this way, there is a selective assembly.
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