Synthesis and performance of transparent casting polyurethane resin

Feng, Xue; Shi, Yusheng

doi:10.1007/bf02838480

Cited by 8 publications

(3 citation statements)

References 12 publications

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“…The first category is based on changing the control point or offset point coordinates to achieve modification of the hull surface, mainly including morphing, hull surface modification based on radial basis function (RBF) interpolation, and free form deformation 2 of 30 (FFD). The morphing method [7] is used to interpolate a number of similar parent ships within the surface by adjusting the morphing coefficients, which in turn generates smooth new ship forms. Feng et al [8] used the morphing method to optimize the bulbous bow section of a 1300 TEU container ship.…”

Section: Introductionmentioning

confidence: 99%

NURBS-Based Parametric Design for Ship Hull Form

Zhou

Feng

Liu

et al. 2022

JMSE

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Recently, the NURBS technique has been widely used in the 3D design software for ships. However, in most research, the NURBS technique is only applied to the mathematical representation of hull curves and surfaces, and the parametric deformation of hull surfaces based on geometric feature parameters is less understood. The aims of this paper are to establish the parametric design process of hull surfaces through the classification of geometric feature parameters and the design of feature curves, apply the NURBS technique to the parametric geometric modeling of hull curves and surfaces, and finally achieve the parametric deformation of hull surfaces driven by geometric feature parameters and develop the parametric deformation software. Taking the Series 60 ship as an example, we first analyze the hull geometric features and parameters, then design the longitudinal feature curves and cross-section curves based on the NURBS technique and establish the correlation between them, and finally generate the smooth hull surface by the skinning technique to achieve the parametric geometric deformation of the Series 60 ship. The research in this paper shows that the smoothness of the surfaces generated by the NURBS-based parametric design method is good. Additionally, the extracted feature parameters have a clear geometric meaning and can automatically generate hull forms to meet the design requirements quickly and effectively, which has some practical engineering value.

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Section: Introductionmentioning

confidence: 99%

NURBS-Based Parametric Design for Ship Hull Form

Zhou

Feng

Liu

et al. 2022

JMSE

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“…Another report indicated that with a replacement of 20%, the improved strength is the most [35]. Also, the improved strength increases with the increased ratio of water to binder (w/b) [36]. In addition, both the residual compressive strength and residual elastic modulus of the RHA concrete after 500 °C and 700 °C high temperature were slightly improved compared with those of control concrete [37].…”

Section: Introductionmentioning

confidence: 99%

“…The main conclusions that can be drawn are that, incorporating RHA can promote hydration, decrease the content of Ca(OH) 2 and produce more C-S-H gel, which can lead to a densification of the concrete internal structure and the higher compressive strength [35,36]. Another study attributed the improvement of the concrete strength to the filling effect and the active pozzolanic effect of RHA, the later one is the main factor [26].…”

Section: Introductionmentioning

confidence: 99%

Influence of Rice Husk Ash on the properties of Concrete: a Review

Peng¹

2016

Proceedings of the 2016 International Forum on Energy, Environment and Sustainable Development

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Rice husk ash (RHA), produced by burning rice husk under controlled conditions, due to its high activity and high specific surface area, can be applied to concrete by replacing cement, such as in normal concrete and high-strength / high-performance concrete. In addition, its application in ultra-high strength concrete has also been reported. Many experimental studies have shown that, RHA improves the mechanical properties of concrete, decreases permeability properties and significantly ameliorates its durability. The adverse effect of reducing a slump of concrete can be resolved by increasing water reducing agent. RHA in concrete has a preferable application prospect in the future. This paper will summarize many experimental results of the application of RHA in concrete and become a reference for further research on the use of RHA in concrete.

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In vitro and in vivo characterization of homogeneous chitosan-based composite scaffolds

Zhou

Zhu

et al. 2012

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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Synthesis and performance of transparent casting polyurethane resin

Cited by 8 publications

References 12 publications

NURBS-Based Parametric Design for Ship Hull Form

NURBS-Based Parametric Design for Ship Hull Form

Influence of Rice Husk Ash on the properties of Concrete: a Review

In vitro and in vivo characterization of homogeneous chitosan-based composite scaffolds

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