This article provides a comprehensive review of the current state of design and materials used in shipbuilding. It explores various types of vessels and innovative materials such as composites and steel employed in th...
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This paper presents the design and analysis of a low frequency passive scattering echo intensifier. The method of realizing low-frequency scattering enhancement for small target is explained. Based on the resonant fre...
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Recent years have seen an increase in the scope of applications for airborne cameras as well as a diversification in their design. One of the most important steps in airborne camera imaging is the design of the optica...
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The traditional edamame harvester faces the pain points of low efficiency and labor shortage, so the research and development of automatic edamame harvester is imperative. In this paper, three applications of edamame ...
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Concrete use in buildings significantly contributes to global CO2 emissions. Floor systems constitute a major portion of the concrete in building structures, making them a prime target for material reduction. Conventi...
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Concrete use in buildings significantly contributes to global CO2 emissions. Floor systems constitute a major portion of the concrete in building structures, making them a prime target for material reduction. Conventional design methods to calculate strength and deflection of concrete slabs often avoid complex calculations and save time, but they can be overly conservative and lead to inefficient use of materials. This research aims to leverage modern design techniques, specifically Grasshopper, to reduce CO2 emissions and resource use in concrete slab design. As an early step into this direction, three methods are presented and demonstrated: (i) determines the span length at an arbitrary point on the floor, (ii) computes the reinforcement field based on Finite Element Analysis (FEA) results, and (iii) updates element stiffness based on their internal forces obtained from FEA to approximate moment redistribution. It is concluded that the presented methods are feasible and they can be developed further into a holistic design workflow that can support architects and engineers in saving material and reducing emissions.
The object of this study concerns the validation of the DOE (design Of Experiments) methodology applied to the optimal design of new machines. In particular, this technique was tested on an aging test machine for a ne...
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ISBN:
(纸本)9783031662676;9783031662683
The object of this study concerns the validation of the DOE (design Of Experiments) methodology applied to the optimal design of new machines. In particular, this technique was tested on an aging test machine for a new class of intelligent railroad seats. The authors intend to implement this technique using the proprietary software Minitab. Instead, Matlab computational software was chosen to emulate the machine in a virtual environment to test the various configurations considered for statistical analysis. Following the numerical analysis, this method was tested on the physical prototype recently built in the Applied Mechanics Laboratory of the Department of Industrial engineering at the University of Salerno. The use of DOE on the real machine revealed a lack of correlation between the main measured quantities, thus highlighting the incorrect distribution of the assumed transducers. This information allowed to redefine the sensors to be installed, improving the performance of the instrumented seat.
This paper proposes the design and optimization of holographic optical element (HOE) for holographic display systems. A novel HOE is designed, fabricated, and optimized to replace traditional lenses, reducing system s...
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In the design of Gaussian laser emission systems, a beam expander system is often necessary to achieve both long-distance transmission and convergence of the laser beam. The effectiveness of such a beam expander syste...
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Conventional imaging systems for correction of geometric and chromatic aberrations often use two dozen individual optical elements. In recent years, researchers have introduced computational imaging to this situation....
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