Results 21 to 30 of about 4,462 (291)
Research on nonlinear dynamic vertical vibration characteristics and control of roll system in cold rolling mill [PDF]
Scientific ReportsIn order to address the vertical vibration phenomenon of the working roll during the rolling process, taking into consideration the nonlinear factors of the rolling interface and the roll system, this study establishes a nonlinear excitation vertical ...
Li Li, Chenhao Zhong
doaj +2 more sources
Application of Multipole Expansions to Roll Damping [PDF]
Brodogradnja : An International Journal of Naval Architecture and Ocean Engineering for Research and Development, 2013 This study presents the application of multipole expansion to calculate the roll damping of the rectangular box. The N-parameter Lewis form was used to follow the rectangular cross section. The Ursell-Tasai method was employed to deal with non-circular cross section.
Myung Choi, Young +5 more
openaire +3 more sources
Experimental Study on Estimation of Roll Damping for Various Midship Sections [PDF]
한국해양공학회지, 2019 The magnitude of the roll motion of a floating structure depends on the roll damping acting on the body. In other words, the roll damping of a floating structure must be accurately obtained in order to precisely evaluate the roll motion.
Byeongwon Park +5 more
doaj +1 more source
Journal of Marine Science and Engineering, 2022 Among the 6 degrees of freedom (6-DoF), excessive roll motion is the most dangerous cause of ships capsizing. However, when analyzing the maneuverability of surface ships, the roll components have usually been ignored.
Thi Loan Mai +3 more
doaj +1 more source
Tuning of vessel parameters including sea state dependent roll damping [PDF]
, 2021 Online tuning of vessel models based on onboard measurement data can reduce the uncertainties of vessel motion prediction, and therefore potentially increase the safety and cost efficiency for marine operations. Among the uncertain vessel parameters, the
Leira, Bernt Johan +2 more
core +4 more sources
Coherent solutions to roll damping derivatives evaluation for a generic rocket model [PDF]
INCAS Bulletin, 2023 This paper presents a coherent approach to evaluate the roll damping derivatives for the standard Basic Finner Model. The study compares and analyses the results obtained through a range of techniques, including experimental testing, numerical ...
Ionut BUNESCU +4 more
doaj +1 more source
Journal of Marine Science and Engineering, 2020 Wave excited roll motion poses danger for moored offshore vessels such as Floating Production Storage and Offloading (FPSO) because they cannot divert to avoid bad weather.
Jane-Frances Igbadumhe +3 more
doaj +1 more source
Finite-time filtered backstepping sliding mode adaptive control for rudder roll stabilization
Zhongguo Jianchuan Yanjiu, 2023 ObjectiveAn adaptive finite-time filtered backstepping sliding mode controller is designed to solve the rudder roll stabilization control problem of underactuated ships in unknown wave disturbance conditions.
Jiahao LIU, Zhiquan LIU
doaj +1 more source
Roll damping performance (experiment). [PDF]
, 2018 Roll damping performance (experiment).
Lihua Liang (82313) +5 more
core +1 more source
Nonlinear roll damping of ship motions in waves [PDF]
, 2005 Nonlinear roll damping has a profound influence on ship motions and stability in ocean waves. In this study, an experimental investigation is conducted on the nonlinear roll damping of a ship in regular and irregular waves.
Li Y, Tao L, Wu X
core +3 more sources