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Wyszukujesz frazę "swing" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Dynamic analysis and experiment of underactuated double-pendulum anti-swing device for ship-mounted jib cranes
Autorzy:
Wang, Jianli
Liu, Kexin
Wang, Shenghai
Chen, Haiquan
Sun, Yuqing
Niu, Anqi
Li, Haolin
Powiązania:
https://bibliotekanauki.pl/articles/32895577.pdf
Data publikacji:
2022
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship-mounted cranes
underactuated double-pendulum
dynamic simulation
anti-swing control
Opis:
This paper proposes a three degrees of freedom parallel anti-swing method by the main and auxiliary cables to address the problems related to underactuated double-pendulum anti-swing for a ship-mounted jib crane. By analysing the dynamic coupling relationship between the swing of the hook and the payload, it seeks to establish an accurate dynamic model of the anti-swing device under the ship’s rolling and pitching conditions, and discusses the influence of ship excitation, the crane state, load posture and anti-swing parameters on the in-plane and out-of-plane swing angles. The analysis shows that the primary pendulum reduces the in-plane angle by 90% and the out-of-plane angle by 80%, the in-plane angle of the secondary pendulum is reduced by 90%, and the out-of-plane angle is reduced by 80%. The reliability of the simulation data is verified through experiments.
Źródło:
Polish Maritime Research; 2022, 4; 145-154
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigations of operational driving loads of bucket chains and manoeuvre hoisting winches on multi-bucket dredgers
Autorzy:
Bocheński, D.
Powiązania:
https://bibliotekanauki.pl/articles/259828.pdf
Data publikacji:
2008
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
bucket ladder dredgers
main receivers of mechanical energy
ship power plants
bucket chain
swing winches
Opis:
The paper concerns problems of preliminary designing of bucket dredgers’ power plants. This paper presents results of investigations of six bucket dredgers in service. The operational investigations consisted in measuring the parameters which characterize working conditions of two main receivers of mechanical energy: bucket chains and swing winches. In the paper characteristics of disposition of loading of bucket chains and swing winches are presented. They covered average value, standard deviation and coefficient of variance of loading disposition mutability. Examples of load distributions of chains’ and group of swing winches on chosen dredgers during some period of time were given. Conclusions in view to average values of main receivers of mechanical energy and coefficients of variance of loadings spred were formulated. Results of investigations of dependence of average loadings of main receivers on their nominal power were presented. The results of work will be used in creation of random models describing real conditions of operation of power plant elements of dredgers.
Źródło:
Polish Maritime Research; 2008, 3; 42-48
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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