Results 51 to 60 of about 25,794 (101)

Study of L-extension type ship vibration isolation pedestal based on impedance mismatch principle

open access: yesZhongguo Jianchuan Yanjiu, 2021
ObjectivesAs the traditional pedestal has limited vibration suppression ability, it is necessary to design a new type of pedestal structure to improve its performance in this aspect.MethodsFirst, based on the principle of impedance mismatch, a kind of L ...
Xinhao ZHAO   +4 more
doaj   +1 more source

Multi-Objective Weather Routing of Sailing Vessels

open access: yesPolish Maritime Research, 2017
The paper presents a multi-objective deterministic method of weather routing for sailing vessels. Depending on a particular purpose of sailboat weather routing, the presented method makes it possible to customize the criteria and constraints so as to fit
Życzkowski Marcin   +1 more
doaj   +1 more source

Dynamic characteristics analysis of disc-spring longitudinal shock absorber of ship shafting

open access: yesZhongguo Jianchuan Yanjiu, 2021
ObjectivesIn order to suppress the longitudinal vibration transfer of ship shafting, this paper put forward a design approach of applying disc-spring longitudinal shock absorber to the ship shafting, and carried out a study of dynamic characteristics ...
Ji XIA, Quanchao LI
doaj   +1 more source

Analysis of Fatigue Crack Growth in Ship Structural Details

open access: yesPolish Maritime Research, 2016
Fatigue failure avoidance is a goal that can be achieved only if the fatigue design is an integral part of the original design program. The purpose of fatigue design is to ensure that the structure has adequate fatigue life.
Leheta Heba W.   +2 more
doaj   +1 more source

Ground Liquefaction and Deformation Analysis of Breakwater Structures Under Earthquakes

open access: yesPolish Maritime Research, 2016
Ground liquefaction and deformation is one of the important causes that damage engineering structures. Chinese current code for seismic design of breakwater is based on the single-level seismic design method as well as code for port and water-way ...
Zhao Jie   +3 more
doaj   +1 more source

Experimental and Mathematical Investigations on Unconfined Compressive Behaviour of Costal Soft Soil under Complicated Freezing Processes

open access: yesPolish Maritime Research, 2016
In order to properly understand the effect of freezing-thawing circle (FTC) to mechanical behavior of costal soft soil (CSS), unconfined compressive test is conducted. Six kind FTC times are designed from zero to five.
Wang Wei   +4 more
doaj   +1 more source

Corrosion Fatigue Crack Propagation Rate Characteristics for Weldable Ship and Offshore Steels with Regard to the Influence of Loading Frequency and Saltwater Temperature

open access: yesPolish Maritime Research, 2017
After Vosikovsky (1975), the corrosion fatigue crack growth rate (CFCGR) characteristics have been divided into three regions. The region-III rates are very close to mechanical fatigue crack growth rates.
Jakubowski Marek
doaj   +1 more source

Measuring supermassive black holes with gas kinematics. II. The LINERs IC 989 , NGC 5077 , and NGC 6500 [PDF]

open access: yes, 2007
We present results from a kinematical study of the gas in the nucleus of a sample of three LINER galaxies, obtained from archival HST/STIS long-slit spectra.
G. D. Francesco   +5 more
semanticscholar   +1 more source

The uncertainty quantification of ship shock environment subjected to non-contact underwater explosion

open access: yesZhongguo Jianchuan Yanjiu, 2020
Objectives To identify and quantify uncertain factors in the modeling and simulation of ships suffering a non-contact underwater explosion, the influence of high dimensional random variables on the output of the system is studied.Methods Following ...
LIANG Xiao   +3 more
doaj   +1 more source

Optimization of weapon launching time series for small surface vessels

open access: yesZhongguo Jianchuan Yanjiu, 2020
Objectives As an important firepower strike platform, the small surface vessel has broad development prospects. It is necessary to reduce the motion response of these vessels to weapon launching through the launching strategy, and to complete continuous ...
ZHANG Zixiang   +4 more
doaj   +1 more source

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