pdf researches on design optimization of the resistance

Design Optimization of the Lines of the Bulbous Bow

To reduce the ship wave-making resistance, the lines of the bulbous bow of a hull are optimized by an automatic optimization platform at the ship design stage. Parametric modeling was applied to the hull by using non-uniform rational basis spline (NURBS). The Rankine-source panel method was used to calculate the wave-making resistance. A hybrid optimization strategy was applied to achieve the

Reliability based design optimization of semi-rigid

In the conventional methods of structural optimization, the designers reduce the structural cost or weight without taking into account uncertainties in the materials, geometry and loading. In this way, the optimum solution may represent a lower level of reliability and thus a higher risk of failure. However, the objective of reliability based design optimization (RBDO) is to design structures (PDF) OPTIMIZATION OF THE WELDING PARAMETERS IN Resistance spot welding is commonly used in the automotive industry, because it has the advantage which is high speed, high-production assembly lines and suitability for automation. The objective of this paper is to find out the influence of the

Analysis, Design, and Optimization of Spiral Inductors

parameters such as inductance, resistance, capacitance and Q. Otherwise researchers have used commercial 3D electromagnetic simulators [8][9] to design and analyze inductors and transformers. While this approach is accurate, it can be computationally very expensive and time-consuming. This prevents the designer from performing optimization. Design & optimization of automotive power electronics The new Floating Island and Thick Bottom Oxide Trench Gate MOSFET (FITMOS) developed at Toyota has tremendous potential for automobile applications due to its reduced on-resistance, improved temperature coefficient of resistance and reduced gate charge and input capacitance. In this research, we investigated the detailed characteristics of

Design and Optimization of Potent and Orally Bioavailable

Inhibition of mutant B-Raf signaling, through either direct inhibition of the enzyme or inhibition of MEK, the direct substrate of Raf, has been demonstrated preclinically to inhibit tumor growth. Very recently, treatment of B-Raf mutant melanoma patients with a selective B-Raf inhibitor has resulted in promising preliminary evidence of antitumor activity. This article describes the design and Design of the lines of underwater vehicles based on Apr 18, 2016 · A generalized collaborative optimization (CO) framework is proposed to the optimization design of the lines of an underwater vehicle. The resistance and maneuvering performances are concerned about and taken as the optimization objectives in the optimization framework. The resistance, lateral force and yaw moment are calculated by RANS method.

Hydrodynamic Design Study on Ship Bow and Stern Hull

Aug 08, 2019 · The optimization results show a decrease of 7.0% in the total resistance at the design speed of Fn=0.26, but the resistance reduction benefit is weakened at other speed points. For example, at low speed of Fn=0.152, the drag reduction benefit is reduced to about 2%, and at high speed of Fn=0.282 the resistance is slightly increased. Journal of Medicinal Plants Research - optimization by The individual antimicrobial activities of essential oils have been reported by many authors. However, there is little information about the effects of their mixtures in order to maximize their effect and reduce the growing resistance of pathogens to existing medicines. So, the aim of this work is to optimize the antibacterial and antifungal activities of essential oils from Plectranthus

MCA Free Full-Text Design Optimization of the Lines of

To reduce the ship wave-making resistance, the lines of the bulbous bow of a hull are optimized by an automatic optimization platform at the ship design stage. Parametric modeling was applied to the hull by using non-uniform rational basis spline (NURBS). The Rankine-source panel method was used to calculate the wave-making resistance. A hybrid optimization strategy was applied to achieve the Modeling and Design Optimization of Ultra-Thin Vapor CTRC Research Publications Cooling Technologies Research Center 2012 Modeling and Design Optimization of Ultra-Thin Vapor Chambers for High Heat Flux Applications R. Ranjan United Technologies Research Center J. Y. Murthy Purdue University S V. Garimella Purdue University, [email protected] D. H. Altman Raytheon Integrated Defense Systems M. T

Multiperformance optimization design of a hybrid vibration

Jan 27, 2020 · RESEARCH ARTICLE. Multiperformance optimization design of a hybrid vibration mitigation system for super highrise buildings to improve earthquake resistance. View the article PDF and any associated supplements and figures for a period of 48 hours. Article can not be printed. OPTIMIZATION OF SPOT WELDING PROCESS the welding parameters in resistance spot welding operations. Keywords:Resistance Spot Welding (RSW), Tensile shear strength, Taguchi method, S/N ratio, Optimization INTRODUCTION Resistance spot welding is getting significant importance in car, bus and railway bodies etc due to automatic and fast process. The major

Optimization Design of Minimum Total Resistance Hull Form

Jun 02, 2018 · Numerical Calculation of Wave Resistance and Hull Lines Optimization, MSc. Thesis, Harbin Engineering University. (in Chinese) Google Scholar Li, S.Z., Zhao, F. and Ni, Q.J., 2014. Bow and stern shape integrated optimization for a full ship by a simulation-based design technique, Journal of Ship Research, 58(2), 8396. Optimization design based on the thermal resistance Download PDF Download. Applied Thermal Engineering. Volume 112, 5 February 2017, Pages 1260-1270. Research Paper. Optimization design based on the thermal resistance analyses of heat recovery systems for rotary kilns. Author links open overlay panel

Parametric design and optimization of SWATH for reduced

Problem 4 is a single-objective deterministic optimization for calm-water resistance at fixed speed. The design optimization is based on hull-form modifications by the Karhunen-Loève expansion of Research on the Comprehensive Optimization of the In this research, based on the current lack of a comprehensive optimization method that accounts for the hydraulic performance and frost-heaving resistance of the cross-section structures of parabolic channels, a multi-objective optimization model was established with the goal of achieving a minimum cross-sectional flow area and a uniform

Shear Wall Analysis and Design Optimization In Case of

HE design of tall buildings essentially involves a conceptual design, approximate analysis, preliminary design and optimization, to safely carry gravity and lateral loads. The primary purpose of all kinds of structural systems used in the building type of structures is Simultaneous Optimization of Propeller-Hull Systems to The objective of this research is to develop a probabilistic design methodology to minimize LFC by optimizing the hull and propeller geometry simultaneously to minimize LFC. A bimodal PDF, similar to those presented in references [5], [9], and [10], is applied to model

Topology Optimization Design of Heterogeneous Materials

Dec 18, 2019 · About this book. This book pursues optimal design from the perspective of mechanical properties and resistance to failure caused by cracks and fatigue. The book abandons the scale separation hypothesis and takes up phase-field modeling, which is at the cutting edge of research and is of high industrial and practical relevance. Topology Optimization Design of Heterogeneous Materials This book pursues optimal design from the perspective of mechanical properties and resistance to failure caused by cracks and fatigue. The book abandons the scale separation hypothesis and takes up phase-field modeling, which is at the cutting edge of research and is of high industrial and practical relevance. Part 1 starts by testing the limits of the homogenization-based approach when the

(PDF) Research on a method of hull form design based on

In this paper, we consider an optimization of the hull shape in order to minimize the total resistance of a ship. The total resistance is assumed to be the sum of the wave resistance computed on