Studies Regarding Redesign and Optimization of the Main Shaft of a Naval Winch

Adina Sarca; Dan Leordean; Cristian Vilău

doi:10.4028/www.scientific.net/AMM.808.271

Paper Titles

Finite Element Analysis of Multispeed Noncircular Gears
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Pneumatic Clamp Used for Fixing Plastic Parts in Laminating Tools
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SPH Meshless Simulation of Orthogonal Cutting of AA6060-T6
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Design and Analyses to Determine the Minimum Acting Force of a Gripper for Handling the Parts with Robots
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Studies Regarding Redesign and Optimization of the Main Shaft of a Naval Winch
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Utilization of CAD/CAM System Edgecam in Programming of CNC Milling Machine
p.280

The Analyses of Working Parameters for a 3D Complex Part Manufacturing by CNC Machine
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The Geometry Equations for Multiple Kinematic Structures Using Direct Geometry
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Optimum Solution for Sliding Formwork Equipment
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 808Studies Regarding Redesign and Optimization of the...

Studies Regarding Redesign and Optimization of the Main Shaft of a Naval Winch

Abstract:

This article presents the results of a study regarding the structural optimization of the main shaft of a naval winch and its manufacturing technology. Throughout this paper, its design will also be changed and improved. The main purpose of the research here described is to reduce the mass of the shaft from an initial weight of 23 kg. The drum responsible for releasing the boats in the water is placed on the first section of the spindle. The maximum embarkation is 2141 kg (21kN), meaning the safe working load of the davit, consisting in a boat fully equiped with 10 people in it. Moreover, this value of 2141 kg, is multiplied with the safety factor of a minimum 4.5, specific for the maritime industry, in the proceeded analyzes. The other objectives of the study take into consideration the fulfiling of the functional role without having a major intervention upon the other components of the winch, the reduction of costs and the decreasing in manufacturing time. Therefore, starting from a hollow byproduct, through the processes of optimization, redesign and simulation using finite element analysis, the achieved results show a 45% reduction in the weight of the shaft and a significant shortage of the manufacturing time. In this entire proceess, only one component needs technological changes by repositioning its 4 holes. From the economical point of view, by using a tube instead of a bar, it is possible a reduction of almost 6000 USD for a batch of 1000 shafts.

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Periodical:

Applied Mechanics and Materials (Volume 808)

Pages:

271-279

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.808.271

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Online since:

November 2015

Authors:

Adina Sarca, Dan Leordean*, Cristian Vilău

Keywords:

CREO Parametric, CREO Simulation, FEA, Gear Unit, Lifeboat, Shaft, Winch

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* - Corresponding Author

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