Joint optimization of mission abort and protective device selection policies for multistate systems

X Zhao, X Chai, J Sun, Q Qiu - Risk Analysis, 2022 - Wiley Online Library
For safety‐critical systems such as aircrafts and submarines, mission abort is commonly
deployed to enhance system survivability at the cost of reducing mission success probability …

Optimal mission abort policy for systems subject to random shocks based on virtual age process

Q Qiu, L Cui - Reliability Engineering & System Safety, 2019 - Elsevier
Safety critical systems such as aircrafts, submarines and space stations are required to
perform various missions. To enhance the survivability of such systems, a mission can be …

Joint modeling of loading and mission abort policies for systems operating in dynamic environments

X Zhao, R Li, S Cao, Q Qiu - Reliability Engineering & System Safety, 2023 - Elsevier
Failures of safety-critical systems may cause huge economic losses and irretrievable
disasters. The dynamic operating environment of such systems makes it more difficult to …

Designing two-level rescue depot location and dynamic rescue policies for unmanned vehicles

X Zhao, Z Lv, Q Qiu, Y Wu - Reliability Engineering & System Safety, 2023 - Elsevier
Unmanned vehicles are often required to execute critical missions in harsh environment,
causing system failure which may occur during the mission execution or rescue procedure …

Mixed shock model for multi-state weighted k-out-of-n: F systems with degraded resistance against shocks

X Wang, X Zhao, C Wu, S Wang - Reliability Engineering & System Safety, 2022 - Elsevier
In previous studies of shock models, the probability of shocks causing damage to the system
during operation is always constant. However, it is more practical for the system to become …

Reliability modeling for degradation-shock dependence systems with multiple species of shocks

H Gao, L Cui, Q Qiu - Reliability Engineering & System Safety, 2019 - Elsevier
In this research, reliability models are developed for systems or devices subject to
dependent competing soft and hard failure processes with degradation-shock dependences …

Multi-state balanced systems in a shock environment

X Zhao, S Wang, X Wang, Y Fan - Reliability Engineering & System Safety, 2020 - Elsevier
Reliability analysis of balanced systems has become an important research topic. In
previous studies, a balanced system only has two states, ie, perfect functioning and …

Optimal stop** problems for mission oriented systems considering time redundancy

Q Qiu, M Kou, K Chen, Q Deng, F Kang, C Lin - Reliability Engineering & …, 2021 - Elsevier
Catastrophic failures of safety-critical systems could result in irretrievable economic losses
and damage. To enhance the survivability of safety-critical systems, a mission can be …

Reliability and maintenance for performance-balanced systems operating in a shock environment

X Wang, X Zhao, S Wang, L Sun - Reliability Engineering & System Safety, 2020 - Elsevier
Due to practical engineering applications, the research on balanced systems has moved
into development in recent years. The concept of balance differs from various perspectives …

Reliability analysis of multi-state k-out-of-n: G system with common bus performance sharing

X Zhao, C Wu, S Wang, X Wang - Computers & Industrial Engineering, 2018 - Elsevier
In this paper, a multi-state k-out-of-n: G system with common bus performance sharing is
proposed, in which k-out-of-n: G structure is considered, and the system state is divided into …