RELIABILITY DESIGN ASSISTANCE DEVICE, RELIABILITY DESIGN ASSISTANCE METHOD, AND RELIABILITY DESIGN ASSISTANCE PROGRAM

摘要

A relational expression calculator calculates a relational expression by performing approximation calculation for data strings each of which associates the value of a subject factor, which varies according to a user or an environment, with an input stress measurement value that is measured when a subject device is used. An input stress calculator calculates an input stress, which is input to the subject device, according to the relational expression and to index data on the subject factor. A failure rate calculator calculates a failure rate of the subject device according to the input stress and to a characteristic value distribution of the subject device.

主权项

1. A reliability design assistance device comprising:
relational expression calculation means that calculates a relational expression by performing approximation calculation for data strings each of which associates a value of a subject factor with an input stress measurement value, the subject factor varying according to a user or an environment, the input stress measurement value being measured when a subject device is used; input stress calculation means that calculates an input stress according to the relational expression and to index data on the subject factor, the input stress being input to the subject device; and failure rate calculation means that calculates a failure rate of the subject device according to the input stress and to a characteristic value distribution of the subject device.