• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>World Aquaculture >Improved cage performance and cage environment in exposed locations.
【24h】

Improved cage performance and cage environment in exposed locations.

机译：改进了裸露位置的笼子性能和笼子环境。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A series of computer simulations were performed to determine the influence of different netting materials on the performance of aquaculture cages under extreme conditions. Using a finite elements method, the difference between 2 types of netting was determined. The computer simulation compared cages of the same size and configuration: one with netting made of common nylon and the other with netting made of Dyneema (a high modulus polyethylene (HMPE) material that is 5 times stronger than polyamide, lighter than water and resistant to water absorption). The results showed that with no current, each net retained a perfect cylindrical shape. However, as the speed of the current increased, so did the deformation of the netting. In all cases, netting made with Dyneema exhibited less deformation. The netting made of HMPE maintained 54% residual volume. Simulations with wave heights ranging from 0.5 to 3.0 m generally showed a decrease of 40% in forces on the nets and mooring systems made with HMPE compared to those manufactured with nylon. Moving to new netting material technology could help aquaculture companies not only reduce the costs of doing business in current locations but would also permit them to take advantage of future opportunities, including enlarging cage volume to boost profits, venturing into more exposed locations to expand their business and adding new high-value species for higher profit margins.
机译：进行了一系列计算机模拟，以确定在极端条件下不同网状材料对水产养殖网箱性能的影响。使用有限元方法，确定了两种类型的网之间的差异。计算机模拟比较了相同尺寸和配置的笼子：一个笼子是用普通尼龙制成的，另一个是用迪尼玛（一种高模量的聚乙烯（HMPE）材料制成，比聚酰胺强5倍，比水轻并且耐水吸水率）。结果表明，在没有电流的情况下，每个网都保留了理想的圆柱形状。然而，随着电流速度的增加，网的变形也随之增加。在所有情况下，用迪尼玛制成的网状物的变形较小。 HMPE制成的网保留了54％的残留量。在波高范围从0.5到3.0 m的模拟中，与用尼龙制造的网相比，用HMPE制造的网和系泊系统的力通常降低40％。转向新的网状材料技术不仅可以帮助水产养殖公司降低在当前地点开展业务的成本，而且还可以使他们利用未来的机会，包括扩大网箱数量以增加利润，冒险进入更多裸露的地点来扩展业务并添加新的高价值物种以获得更高的利润率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号