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Patent Agency Ranking
1.发明授权公开(公告)号：US10830261B2
公开(公告)日：2020-11-10
申请号：US14774767
申请日：2014-03-12
Applicant: Texas Tech University System , nanoGriptech, Inc.
Inventor： Luciano Castillo , Burak Aksak , Metin Sitti
Abstract: An aerodynamic or hydrodynamic wall surface has an array of fibrillar structures disposed on and extending from the wall surface, wherein each fibrillar structure comprises a stalk and a tip. The stalk has a first end and a second end, wherein the first end is attached to the wall surface, and the stalk is oriented with respect to the wall surface at a stalk angle between approximately 1 degrees and 179 degrees. The tip has a first side and a second side, wherein the first side is attached proximate to the second end of the stalk, the tip has a larger cross-sectional area than the stalk, and the second side comprises a substantially planar surface that is oriented with respect to the stalk at a tip angle between approximately 0 degrees and 90 degrees.
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2.发明申请FIBRILLAR STRUCTURES TO REDUCE VISCOUS DRAG ON AERODYNAMIC AND HYDRODYNAMIC WALL SURFACES 审中-公开减少航空动力和水动力墙面上的粘弹带的结构公开(公告)号：US20160017902A1
公开(公告)日：2016-01-21
申请号：US14774767
申请日：2014-03-12
Applicant: TEXAS TECH UNIVERSITY SYSTEM , NANOGRIPTECH, INC.
Inventor： Luciano Castillo , Burak Aksak , Metin Sitti
CPC classification number: F15D1/003 , B63B1/36 , B64C21/10 , B64C2230/26 , F15D1/0035 , Y02T50/166 , Y02T70/121
Abstract: An aerodynamic or hydrodynamic wall surface has an array of fibrillar structures disposed on and extending from the wall surface, wherein each fibrillar structure comprises a stalk and a tip. The stalk has a first end and a second end, wherein the first end is attached to the wall surface, and the stalk is oriented with respect to the wall surface at a stalk angle between approximately 1 degrees and 179 degrees. The tip has a first side and a second side, wherein the first side is attached proximate to the second end of the stalk, the tip has a larger cross-sectional area than the stalk, and the second side comprises a substantially planar surface that is oriented with respect to the stalk at a tip angle between approximately 0 degrees and 90 degrees.
Abstract translation: 空气动力学或流体动力学壁表面具有布置在壁表面上并从壁表面延伸的纤维结构阵列，其中每个纤维结构包括茎和尖端。 茎具有第一端和第二端，其中第一端附接到壁表面，并且茎以约1度至179度之间的柄角度相对于壁表面定向。 尖端具有第一侧和第二侧，其中第一侧靠近杆的第二端附接，尖端具有比杆更大的横截面面积，第二侧包括基本平坦的表面， 在约0度和90度之间的尖端角度相对于杆定向。
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公开(公告)号：US12012981B2
公开(公告)日：2024-06-18
申请号：US17067464
申请日：2020-10-09
Applicant: TEXAS TECH UNIVERSITY SYSTEM
Inventor： Burak Aksak , Luciano Castillo , Humberto Bocanegra Evans
CPC classification number: F15D1/0035 , B64C21/10 , B64C2230/26
Abstract: A coating apparatus for the reduction of aerodynamic noise and vibrations. The coating apparatus is configured to include a group of fibrillar structures, wherein each fibrillar structure is configured with a diverging tip so that the coating reduces the size of and shifts downstream, a separation bubble, and modulates large-scale recirculating motion. Each fibrillar structure can be configured as a cylindrical micropillar. The group of fibrillar structures can be configured as a group of uniformly distributed cylindrical micropillars (e.g., one or more micropillar arrays). The surface coating is effective in reducing the separation bubble and displacing the separation bubble downstream. The coating facilitates a reduction in noise (e.g., aerodynamic noise) and vibrations due to the reduction in the size of the separation bubble.
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公开(公告)号：US20210102564A1
公开(公告)日：2021-04-08
申请号：US17067464
申请日：2020-10-09
Applicant: TEXAS TECH UNIVERSITY SYSTEM
Inventor： Burak Aksak , Luciano Castillo , Humberto Bocanegra Evans
Abstract: A coating apparatus for the reduction of aerodynamic noise and vibrations. The coating apparatus is configured to include a group of fibrillar structures, wherein each fibrillar structure is configured with a diverging tip so that the coating reduces the size of and shifts downstream, a separation bubble, and modulates large-scale recirculating motion. Each fibrillar structure can be configured as a cylindrical micropillar. The group of fibrillar structures can be configured as a group of uniformly distributed cylindrical micropillars (e.g., one or more micropillar arrays). The surface coating is effective in reducing the separation bubble and displacing the separation bubble downstream. The coating facilitates a reduction in noise (e.g., aerodynamic noise) and vibrations due to the reduction in the size of the separation bubble.
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公开(公告)号：US20200072258A1
公开(公告)日：2020-03-05
申请号：US16122794
申请日：2018-09-05
Applicant: TEXAS TECH UNIVERSITY SYSTEM
Inventor： Burak Aksak , Luciano Castillo , Humberto Bocanegra Evans
Abstract: A coating apparatus for the reduction of aerodynamic noise and vibrations. The coating apparatus is configured to include a group of fibrillar structures, wherein each fibrillar structure is configured with a diverging tip so that the coating reduces the size of and shifts downstream, a separation bubble, and modulates large-scale recirculating motion. Each fibrillar structure can be configured as a cylindrical micropillar. The group of fibrillar structures can be configured as a group of uniformly distributed cylindrical micropillars (e.g., one or more micropillar arrays). The surface coating is effective in reducing the separation bubble and displacing the separation bubble downstream. The coating facilitates a reduction in noise (e.g., aerodynamic noise) and vibrations due to the reduction in the size of the separation bubble.
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