Browsing NTNU Open by Author "Zhao, Bo"
Now showing items 1-5 of 5
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A Unified Framework for Fault Detection and Diagnosis Using Particle Filter
Zhao, Bo; Skjetne, Roger (Journal article; Peer reviewed, 2014)In this paper, a particle filter (PF) based fault detection and diagnosis framework is proposed. A system with possible faults is modeled as a group of hidden Markov models representing the system in fault-free mode and ... -
Finite-time Backstepping of a Nonlinear System in Strict-feedback Form: Proved by Bernoulli Inequality
Ren, Zhengru; Zhao, Bo; Nguyen, Dong Trong (Peer reviewed; Journal article, 2020)In this paper, we propose a novel state-feedback backstepping control design approach fora single-input single-output (SISO) nonlinear system in strict-feedback form. Rational-exponent Lyapunovfunctions (ReLFs) are employed ... -
A novel wellbore strengthening method by using rotary jet while drilling
Wang, Peng; Ni, Hongjian; Liu, Haoge; Zhao, Bo (Journal article, 2020)Lost circulation is one of the most common and costly problems in drilling operations. Improving the wellbore strengthening by plugging drilling induced fractures using rotary jet method is a novel and effective method to ... -
Particle Filter for Fault Diagnosis and Ropbust Navigation of Underwater Robot
Zhao, Bo; Skjetne, Roger; Blanke, Mogens; Dukan, Fredrik (Conference object; Journal article; Peer reviewed, 2014)A particle filter (PF)-based robust navigation with fault diagnosis (FD) is designed for an underwater robot, where 10 failure modes of sensors and thrusters are considered. The nominal underwater robot and its anomaly ... -
Particle Filter for Fault Diagnosis: Applications to Dynamic Positioning Vessels and Underwater Robotics
Zhao, Bo (Doctoral thesis at NTNU;2015:160, Doctoral thesis, 2015)Safety remains an important consideration in control system design. This is particularly true for the control systems that are employed by the offshore petroleum and maritime industries, in which authorities continually ...