Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics最新文献_第10页

Smart transparent protein biomaterial with tunable water-responsiveness properties 具有可调水响应特性的智能透明蛋白质生物材料

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-27 DOI: 10.1117/12.2658754

Kyle Printon, Xiao Hu

引用次数: 0

Development of an underwater robot with undulation propulsion 波浪推进水下机器人的研制

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-27 DOI: 10.1117/12.2658708

G. Bianchi, Lorenzo Maffi, S. Cinquemani

引用次数: 1

Analysis of an anchoring muscle for pipe crawling robot 管道爬行机器人的锚定肌肉分析

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-27 DOI: 10.1117/12.2658008

Frank Cianciarulo, Jacek Garbulinski, J. Chambers, Thomas E. Pillsbury, Norman M. Wereley, A. Cross, Deepak Trivedi

{"title":"Analysis of an anchoring muscle for pipe crawling robot","authors":"Frank Cianciarulo, Jacek Garbulinski, J. Chambers, Thomas E. Pillsbury, Norman M. Wereley, A. Cross, Deepak Trivedi","doi":"10.1117/12.2658008","DOIUrl":"https://doi.org/10.1117/12.2658008","url":null,"abstract":"Pneumatic artificial muscles (PAMs) consist of an elastomeric bladder wrapped in a Kevlar braid. When inflated, PAMs expand radially and contract axially, producing large axial forces. PAMs are often utilized for their high specific work and specific power, as well as their ability to produce large axial displacements. Although the axial behavior of PAMs is well understood, the radial behavior has remained under-utilized and is poorly understood. Radial expansion in large diameter (over 2 inches) PAMs has recently been used in worm-like robots to create anchoring forces that allow for a peristaltic wave which creates locomotion through acrylic pipes. By radially expanding, the PAM presses itself into the pipe, creating an anchor point. The previously anchored PAM then deflates, which propels the robot forward. Modeling of the radial expansion forces and anchoring was desired to determine the pressurization required for proper anchoring before slipping occurs due to the combined robot and payload weight. Modeling was performed using a force balance approach to capture the effects that bladder strain and applied axial load has on the anchoring force. Radial expansion testing was performed to validate the model. Force due to anchoring was recorded using force transducers attached to sections of acrylic pipe using an MTS servo-hydraulic testing machine. Data from the test was compared to the predicted anchoring force.","PeriodicalId":89272,"journal":{"name":"Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics","volume":"8 1","pages":"1248108 - 1248108-11"},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75456359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Whiffling-inspired gapped wings alter trim and mitigate gusts 吹口哨启发的缺口机翼改变装饰和减轻阵风

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-27 DOI: 10.1117/12.2658539

Piper Sigrest, D. Inman

{"title":"Whiffling-inspired gapped wings alter trim and mitigate gusts","authors":"Piper Sigrest, D. Inman","doi":"10.1117/12.2658539","DOIUrl":"https://doi.org/10.1117/12.2658539","url":null,"abstract":"Some species of birds are known to whiffle, or fly inverted, in order to rapidly lose altitude, move laterally, or respond to gusts and atmospheric disturbances. Recently, gaps inspired by the bio-mechanics of whiffling have been found to change the forces and moments of an uncrewed aerial vehicle (UAV) wing. These novel gapped wings have been studied in terms of rapid descent and roll control. However, their potential as gust alleviation devices and overall impact on aircraft dynamics remained unknown. Here, we analytically determined the trim state, free response, and gust response of aircraft with varying gapped wings. The gaps shifted the aerodynamic center of the wing forward but in general beneficially decreased the wing’s overall contribution to the aircraft pitching moment. This effect resulted in a steeper glide angle and higher velocity at trim. The gaps also reduced the phugoid mode by decreasing its natural frequency and increasing damping. However, all of the aircraft could require a controller for the short period mode due to a higher natural frequency. Finally, we showed that the gapped wings improved the aircrafts’ response to transverse and streamwise gusts by increasing damping and reducing the maximum amplitude of oscillations. Despite some practical design challenges associated with the gapped wings, they ultimately benefited the aircraft’s dynamic response and effectively mitigated gusts. Thus, the gapped wings could be a suitable control surface for gust alleviation.","PeriodicalId":89272,"journal":{"name":"Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics","volume":"4 1","pages":"1248109 - 1248109-21"},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88750568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Printing structurally colored photonic materials 印刷结构彩色光子材料

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-27 DOI: 10.1117/12.2653332

P. Yazhgur, N. Muller, S. Aeby, A. Aguilar Uribe, F. Scheffold

引用次数: 0

The poor man’s trough: a bench top, motor-free method to 3D Langmuir-Blodgett films 穷人的槽:一个台式，无电机的方法3D朗缪尔-布洛杰特电影

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-27 DOI: 10.1117/12.2672441

Sophie Weiss, F. Rodriguez, Ji Feng, L. Vuong

引用次数: 0

Bio-inspired light radiating, air circulating, and expanding mechanisms 生物启发光辐射，空气循环和膨胀机制

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-27 DOI: 10.1117/12.2658493

Lilie G. U. Boizumault, T. Lenau, Ella J. Smoraczewska Harris, Gizem Simsek

{"title":"Bio-inspired light radiating, air circulating, and expanding mechanisms","authors":"Lilie G. U. Boizumault, T. Lenau, Ella J. Smoraczewska Harris, Gizem Simsek","doi":"10.1117/12.2658493","DOIUrl":"https://doi.org/10.1117/12.2658493","url":null,"abstract":"This paper explores how Biologically Inspired Design (BID) can be applied in the development of medical devices through a concrete case study. Nature has been developing, over the last 3.8 billion years, the most efficient mechanisms to fulfil a function and overcome challenges. Based on this giant innovation database, BID has received an exponential increase of interest since the 1950s and has led to innovative solutions in a vast variety of fields. The present study is motivated by a medical device which should be designed for insertion in a cavity, followed by a significant expansion inside the cavity. Once expanded, the device should be able to radiate light for disinfection purposes, while simultaneously allowing air replacement in the cavity. Finally, the device should contract to its original size before being extracted from the cavity. In order to propose radically new ideas for designing such a device, BID is applied to a range of functions namely i) how to expand an object after insertion in a cavity, ii) how to promote air circulation in the cavity, iii) how to radiate light to all surfaces in the cavity and finally iv) how to contract the object again. This paper presents and discusses the BID process as well as the outcomes of this study. 25 biological strategies have been identified throughout the project, 7 ideas were generated and 4 more detailed concepts and physical mock-ups emerged from these ideas. 2 of them were considered interesting for further development, which indicates a good efficacy of the process. The whole study lasted 32 working days, suggesting a high efficiency of the BID process.","PeriodicalId":89272,"journal":{"name":"Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics","volume":"60 1","pages":"1248104 - 1248104-12"},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91431631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biologically inspired design 生物启发设计

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-27 DOI: 10.1117/12.2666175

A. Lakhtakia

引用次数: 0

Fabrication of optical hydrophobic metasurfaces resembling the surface structure of Peruvian lily flower petals 类似秘鲁百合花瓣表面结构的光学疏水超表面的制备

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-27 DOI: 10.1117/12.2644519

M. Mazloumi, Yazan Bdour, C. Escobedo, R. G. Sabat

引用次数: 0

Experimental study of the hydrodynamic interaction between a fish and an actively pitching airfoil 鱼与主动俯仰翼型水动力相互作用的实验研究

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-27 DOI: 10.1117/12.2658455

Rishita Das, S. Peterson, M. Porfiri

{"title":"Experimental study of the hydrodynamic interaction between a fish and an actively pitching airfoil","authors":"Rishita Das, S. Peterson, M. Porfiri","doi":"10.1117/12.2658455","DOIUrl":"https://doi.org/10.1117/12.2658455","url":null,"abstract":"The phenomenon of fish schooling - coordinated swimming of fish in polarized groups of specific spatial formations - is commonly observed in several species of fish. Fish schooling may even provide hydrodynamic advantages reducing the overall swimming cost of the group. To date, the role of hydrodynamics in coordinated swimming is not completely understood as it is difficult to separately study the role of hydrodynamic interaction from other forms of interaction between the fish. Here, we propose a statistical methodology based on information theoretic tools and flow velocity measurements, that can potentially tease out the hydrodynamic interaction pathways from visual and tactile ones. To avoid experimental confounds from bidirectional interactions and objectively understand cause-and-effect relationships, we design a robotic platform that mimics the behavior of two fish swimming in-line in a controlled setup inside a water channel. We examine the response of a flag to the fish-like unsteady wake generated by an actively pitching airfoil located upstream. We systematically quantify the passive hydrodynamic effect by studying the flapping motion of the flag located downstream of the airfoil in response to both periodic pitching and less predictable, random startling motion of the upstream airfoil. The study integrates experimental biomimetics with information theory to establish a deeper understanding of hydrodynamics in fish schooling.","PeriodicalId":89272,"journal":{"name":"Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics","volume":"4 1","pages":"124810A - 124810A-7"},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72551134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0