Results 11 to 20 of about 34,297 (198)

A coupled radial-torsional lumped parameter model of rubber bushing for multibody dynamic simulations [PDF]

open access: yesMATEC Web of Conferences, 2023
Many constitutive models’ finite element (FE) models and lumped parameter models included have been presented for rubber bushings. In general, the FE models cannot be directly used in mechanical multibody systems with bushings, and the lumped parameter ...
Cao Chang, Feng Xingxing, Liu Min
doaj   +1 more source

Parameter inversion and amendment of underwater acoustic modulus of high-strength PVC foam

open access: yesZhongguo Jianchuan Yanjiu, 2023
ObjectiveThe purpose of this paper is to obtain the hydro-acoustic modulus of high-strength polyvinyl chloride (PVC) foam through an inversion algorithm based on the measured underwater acoustic insertion loss values of the composite samples, then ...
Bo HU   +5 more
doaj   +1 more source

An analysis of low-frequency propeller vibration and sound radiation characteristics: The Jellyfish effect

open access: yesZhongguo Jianchuan Yanjiu, 2020
Objectives Arousing the "Jellyfish mode" of a propeller can lead to strong low-frequency, narrow band sound radiation. On this basis, the second sound radiation mechanism of the "Jellyfish mode" has been investigated.
WU Chongjian   +4 more
doaj   +1 more source

Experimental study on dynamic characteristics of shipboard steam power system under rapid and large disturbance of generating power

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectivesThis study seeks to explore the dynamic response characteristics of a marine steam power system under the condition of rapid and large power disturbance.
Xinggang WANG   +4 more
doaj   +1 more source

Analysis of influence of FSS radome on array antenna scanning

open access: yesZhongguo Jianchuan Yanjiu, 2020
Objectives Aiming to resolve the adverse effects of frequency selective surface (FSS) radomes on array antenna beam scanning, a method for optimizing FSS radomes is proposed.Methods First, an array antenna with 25 half-wave dipole elements is designed ...
MO Yi   +4 more
doaj   +1 more source

Analysis on the overall model framework of ship steam power based on digital twin

open access: yesZhongguo Jianchuan Yanjiu, 2021
Objectives In order to realize the digitalization, networking and intellectualization of ship steam power systems, this paper puts forward an application system based on a digital twin model.
Yuanlong YANG   +4 more
doaj   +1 more source

Time Response and Natural Frequency Analysis for Structures with Interval Parameters [PDF]

open access: yesMATEC Web of Conferences, 2023
This paper deals with the evaluations of lower and upper bounds of dynamic responses and natural frequencies for structures with uncertain interval parameters.
Feng Xingxing, Cao Chang, Liu Min
doaj   +1 more source

Retrofitting of Danube vessels for a green and efficient fleet

open access: yesAnnals of "Dunărea de Jos" University of Galaţi: Fascicle XI Shipbuilding, 2019
The following paper presents a research study based on the idea of reducing the environmental impact of inland waterway vessels by resorting to state-of-the-art technologies for treating the exhaust gases.
Cristi-Marian Angheluță   +2 more
doaj   +1 more source

Holistic Ship Design for Green Shipping

open access: yesTransportation Research Procedia, 2022
The pattern of seaborne trade and goods transportation is changing and ships need to adapt to changes of customer and market requirements, cargo volumes, and new legislation for the safety of ships and nowadays, even more, to the strict regulatory requirements for the protection of the environment.
Apostolos Papanikolaou   +7 more
openaire   +1 more source

Topological Constraints in Ship Design [PDF]

open access: yes, 2002
In this paper we propose a generic and integrated data structure that is decoupled form the product model database in order to manage and update the geometric elements (parts) related with topological constraints. We present a practical application in the case of ship design.
Solano Albajés, Lluís   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy