期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
石油与天然气工业中的技术价值
1
作者 Ali Daneshy tom bates 赵剑敏(摘译) 《油气地球物理》 2005年第4期57-59,共3页
关键词 石油与天然气工业 勘探开发技术 技术价值 技术危机 石油工业 天然气工业 技术 价值 新产品开发 开发勘探
下载PDF
A High-Speed Launching Mechanism Inspired by a Slingshot Spider’s Web
2
作者 tom bates John Gerig +4 位作者 Manuel Avitia Gunnar Waldvogel Tesfay Legesse Justin Washington Pranav A.Bhounsule 《Journal of Bionic Engineering》 SCIE EI CSCD 2022年第2期440-447,共8页
Slingshot spiders use their conical webs to launch themselves at high speeds to catch prey.We built a launching mechanism inspired by the slingshot spider.Our launch mechanisms comprise a steel structure with eye bolt... Slingshot spiders use their conical webs to launch themselves at high speeds to catch prey.We built a launching mechanism inspired by the slingshot spider.Our launch mechanisms comprise a steel structure with eye bolts to hold a conical web made from latex rubber tubing.We pull the web by a winch using a lever arm.A quick-release mechanism connects the web to the winch using a tough-grid paracord.When we release the quick-return mechanism,the projectile material consisting of a steel ball achieved an acceleration of 5107 m s^(-2) or 521 times gravity,and a speed of 66.41 m s^(-1).The power per unit mass and energy per unit mass of our prototype was one tenth and one fifth that of the spider’s web respectively.In particular,we found that web structure consisting multiple radial web elements reinforced with circumferential web elements provide enhanced stiffness;as a comparison our web had a stiffness of about eight times that of traditional slingshot with a single radial web element.Our results suggest that adapting designs from nature can lead to potentially superior performance of man-made contraptions. 展开更多
关键词 Slingshot spider Launching mechanisms Catapult Bioinspiration
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部