Condition-Based Maintenance Modeling and Reliability Assessment for Multi-Component Systems with Structural Dependence under Extended Warranty

For engineering and production systems, due to the structural dependence between components, the disassembly operation caused by the replacement of components will affect the failure and degradation processes of other components in the system. In order to optimize the extended warranty (EW) cost of the multi‐component system with structural dependence, this paper described the structural dependence and modeled the disassembly operation impact, and then the failure rate model of the component considering the impact of disassembly operation under EW was developed. Combined with the actual situation, a condition-based maintenance (CBM) strategy was employed to construct the EW cost model of the multi‐component system with structural dependence. Monte Carlo simulation was proposed to determine the optimal EW cost of the system and the optimal periodic inspection interval of the CBM strategy. Finally, a numerical example of the planetary gear train of an automobile generator is introduced to demonstrate the feasibility and advantages of the proposed model in EW cost optimization and the analysis of disassembly operation impact on the optimal maintenance strategy.

Structural dependence of electrosynthesized cobalt phosphide/black phosphorus pre-catalyst for oxygen evolution in alkaline media

The integration of black phosphorus (BP) with metal phosphides is known to produce high-performance electrocatalysts for oxygen evolution reduction (OER), although their stability and the degradation of their lone pairs...

First Principles Study of Structural Stability and Electronic Properties of CdTe Nanowires

This research article has explored the electronic behaviour of CdTe nanowire. The present study has evolved the structural dependence of electronic properties of CdTe nanowire. The shapes for which this dependence has been studied are 2 atoms linear, 2 atoms zigzag, 4 atoms square and 6 atoms hexagonal for CdTe nanowire. We have used ABINIT code for this study. We have explored the geometrical optimization, band structure and stability of proposed structures. The structure which has come out to be the most stable amongst the all is 4 atom square nanowire where as the findings of the study for band structure reveal that CdTe nanowires may have insulating as well semiconducting nature depending on the shape of the nanowire.