A Multi-objective Framework for Designing Accelerated Degradation Tests under Wiener Process Model

In this paper, a novel multi-objective framework for designing accelerated degradation tests (ADTs) is developed under Wiener process model. The framework aims at providing aids to balance prediction accuracy and mechanism equivalence of a specific ADT. To achieve this, a new optimization criterion, named as the MV-optimization criterion, is firstly proposed by using the maximum likelihood theory. Then, under the cost constraint, a nonlinear optimization problem is constructed. Finally, a comparison is carried out between our multi-objective optimal plan and other traditional single-objective plans through the case of electrical connector. Results show that the MV-optimization plan has better properties from the perspective of improving the rationality of prediction and the robustness of test plans.