Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics最新文献_第7页

Active deployment of ultra-thin composite booms with piezoelectric actuation 压电驱动的超薄复合臂架主动展开

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-28 DOI: 10.1117/12.2658004

Jacob G. Daye, Andrew Lee

{"title":"Active deployment of ultra-thin composite booms with piezoelectric actuation","authors":"Jacob G. Daye, Andrew Lee","doi":"10.1117/12.2658004","DOIUrl":"https://doi.org/10.1117/12.2658004","url":null,"abstract":"The efficacy of using piezoelectric actuators to initiate the dynamic deployment of bistable composite tape springs is evaluated in this paper. Ultra-thin composite booms such as tape springs and their cross-sectional variants have seen increased popularity in spacecraft structures due to enabling the precise deployment of flexible solar arrays, sails, reflectors, and antennas. They can elastically transition between the deployed “extended” position and the stowed “coiled” position while retaining superior stiffness, thermal properties, mass efficiency, and compactness when compared to thin-shelled metal booms and rigid articulated columns. Bistability in the coiled and extended states allows the boom to exhibit more controllable self-deployment and become reconfigurable, which could allow spacecraft to relocate, redeploy, and adapt to changing environmental conditions or mission objectives. Deployment systems commonly include motors and mechanical restraints that significantly contribute to mechanical complexity and spacecraft weight. Since bistable booms do not rely on elastic instability of packaging to initiate motion, a non-intrusive and lightweight actuation mechanism is needed to trigger deployment. This paper experimentally demonstrates how a Macro Fiber Composite (MFC) actuator can statically and dynamically excite a stowed composite tape spring to initiate unrolling into its extended state.","PeriodicalId":89272,"journal":{"name":"Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics","volume":"93 1","pages":"124830F - 124830F-10"},"PeriodicalIF":0.0,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85922406","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

Nylon-11 nanowires embedded in flexible substrates for piezoelectric transducers 尼龙-11纳米线嵌入压电换能器的柔性衬底

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-28 DOI: 10.1117/12.2658570

Niccolo Lemonis, R. Toonen, Kye-Shin Lee

引用次数: 0

Resonator positioning for enlarged bandgap in mechanical metastructure with finite resonators 有限谐振器机械元结构中放大带隙的谐振器定位

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-28 DOI: 10.1117/12.2656893

Bawoul Chung, A. Erturk, Jae-Hung Han

{"title":"Resonator positioning for enlarged bandgap in mechanical metastructure with finite resonators","authors":"Bawoul Chung, A. Erturk, Jae-Hung Han","doi":"10.1117/12.2656893","DOIUrl":"https://doi.org/10.1117/12.2656893","url":null,"abstract":"The positioning of resonators of locally resonant mechanical metastructure with finite resonators is presented to increase the bandgap. Based on the modal analysis solution of mechanical metastructure with finite resonators, the bandgap change according to aperiodic positioning of finite resonators under the fixed mass ratio of main structure to resonators is observed. By utilizing the responses of the main structure with single resonator having various positions, resonator positions for effective vibration attenuation are selected. Mountain frequencies overlapping between resonators is considered from the main structure responses with single resonator, positions for the enlarged bandgap width are obtained. By increasing the number of resonators and positions, mass distribution effect is added in bandgap formation according to resonators’ position of resonators. Using these results, effective resonator positions and mass distribution for each mode of mechanical metastructure with finite resonators under limited mass ratio of main structure to resonators are proposed.","PeriodicalId":89272,"journal":{"name":"Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics","volume":"20 1","pages":"1248307 - 1248307-5"},"PeriodicalIF":0.0,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87752221","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

Improving diver-robot empathy with a haptic feedback smart glove 用触觉反馈智能手套改善潜水机器人的同理心

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-28 DOI: 10.1117/12.2658612

Antony Tang, D. Orbaugh, A. Bruns, M. H. Mahmoudinezhad, S. Rosset, Iain A. Anderson

{"title":"Improving diver-robot empathy with a haptic feedback smart glove","authors":"Antony Tang, D. Orbaugh, A. Bruns, M. H. Mahmoudinezhad, S. Rosset, Iain A. Anderson","doi":"10.1117/12.2658612","DOIUrl":"https://doi.org/10.1117/12.2658612","url":null,"abstract":"We have developed a diver-robot empathetic communication system that allows the diver to feel the disturbance around the robot and control the robot remotely using hand gestures. The underwater robot is embedded with soft dielectric elastomer (DE) sensors to sense the direction and amplitude of the disturbance around its surroundings, defined as the physical indentation of the eye sensors. The direction and intensity of the disturbance communicate to the user remotely via an array of vibrotactile actuators in the form of a bracelet. Wears of the glove will feel what the robot is going through, represented by different vibration intensities and patterns. The smart glove employs five dielectric elastomer sensors to capture finger motion and implements a machine-learning classifier in the onboard electronics to recognize gestures. Hence allowing the wearer to send commands in the form of hand gestures for correcting the underwater robot’s posture. The system will be tested in a user study to determine performance improvement over the traditional robotic control interface. Our work has demonstrated the capability of DE sensing for advanced human-machine interaction.","PeriodicalId":89272,"journal":{"name":"Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics","volume":"107 1","pages":"124820H - 124820H-7"},"PeriodicalIF":0.0,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73702834","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

Investigating open and closed dielectric elastomer structures for the development of a soft flexible and stretchable pressure sensor array for pressure injury prevention 研究开放和封闭介电弹性体结构，开发一种柔软、柔性和可拉伸的压力传感器阵列，用于预防压力伤害

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-28 DOI: 10.1117/12.2658489

J. Wyss, Ajishnu Roy, Dong Zhou, J. Y. Chow, B. Argun, H. Rajoria, M. Nogami, J. Zhao, A. Cowan, B. Shadgan, J. Madden

{"title":"Investigating open and closed dielectric elastomer structures for the development of a soft flexible and stretchable pressure sensor array for pressure injury prevention","authors":"J. Wyss, Ajishnu Roy, Dong Zhou, J. Y. Chow, B. Argun, H. Rajoria, M. Nogami, J. Zhao, A. Cowan, B. Shadgan, J. Madden","doi":"10.1117/12.2658489","DOIUrl":"https://doi.org/10.1117/12.2658489","url":null,"abstract":"A pressure injury is a complex chronic wound that forms when the delivery of oxygen and nutrients to soft tissue regions is compromised due to prolonged pressure, commonly over bony prominences, which results in local ischemia, cell death and potentially fatal infections. Its early diagnosis and prediction are challenging, despite technological advancements. It remains one of the most burdensome, costly and fatal secondary medical conditions, which affects millions of people annually. Here, we present a soft, flexible and stretchable pressure sensor array made out of silicone elastomer material, carbon black particles and stretchable, conductive, silver-plated fabric. Its working principle is based on capacitive sensing, where electrodes form an array of parallel plate-like capacitors that enable the detection of pressure due to the deformation of the dielectric layer. We explored a variety of different dielectric architectures consisting of pillar structures of various shapes that make it compressible and potentially increase sensitivity. The sensor array is designed to be shape-conformable, scalable in size and resolution, and able to detect and measure pressure within the desired pressure range for pressure injuries (0-200 mmHg) over short (≤15 minutes) and long periods (≥8 hours) with consistent accuracy and low repeatability error.","PeriodicalId":89272,"journal":{"name":"Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics","volume":"58 1","pages":"124820B - 124820B-8"},"PeriodicalIF":0.0,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74947251","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

Sensitive robust tactile fingertips and shape-morphing actuation for robotic grippers 灵敏稳健的触觉指尖和形状变形驱动的机器人抓手

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-28 DOI: 10.1117/12.2658596

Calum R. Briggs, Yanni Sporidis, Peter N. Vicars, Lenore Rasmussen, M. Popović, M. Bowers

{"title":"Sensitive robust tactile fingertips and shape-morphing actuation for robotic grippers","authors":"Calum R. Briggs, Yanni Sporidis, Peter N. Vicars, Lenore Rasmussen, M. Popović, M. Bowers","doi":"10.1117/12.2658596","DOIUrl":"https://doi.org/10.1117/12.2658596","url":null,"abstract":"Human grasp is gentle yet firm, with integrated tactile touch feedback. Current robotic sensing is mainly visual, which is useful up until the point of contact. To understand how an object is being gripped, tactile feedback is needed. Ras Labs makes Synthetic Muscle™, which is a class of electroactive polymer (EAP) based materials and actuators that sense pressure from gentle touch to high impact, controllably contract and expand at low voltage (battery levels), and attenuate force. EAP development towards sensing provided for fingertip-like sensors that were able to detect very light pressures to 0.005 N and with a wide pressure range over 45 N with high linearity. Algorithms, machine learning (ML), and artificial intelligence (AI) were integrated into these sensors for object and grip determination (position, grip force, any slip or wobble) and immediate correction for pick-and-place and other applications. High tack EAPs also have good adhesion to a variety of substances and had self-healing properties. Using these adhesive EAPs and other strategies, sensors and actuators were created where all components stay together. Synthetic Muscle™ was also being retrofitted as actuators into a partial human hand-like biomimetic gripper that focused on the pincer grip. The combination of EAP shape-morphing and sensing promises the potential for robotic grippers with human hand-like control and tactile sensing. This is expected to advance robotics, whether it is for agriculture, medical surgery, therapeutic or personal care, or in hazardous environments where humans cannot enter, as well as for collaborative robotics to allow humans and robots to intuitively work safely and effectively together.","PeriodicalId":89272,"journal":{"name":"Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics","volume":"49 1","pages":"1248209 - 1248209-9"},"PeriodicalIF":0.0,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73982554","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

Enhancement of a smart stretchable resistive heater textile using printed electronic coatings: towards application in automobile 用印刷电子涂层增强智能可拉伸电阻加热织物:面向汽车应用

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-28 DOI: 10.1117/12.2656929

Léopold Diatezo, M. Le, Christine Tonellato, Lluïsa Puig, J. Capsal, P. Cottinet

{"title":"Enhancement of a smart stretchable resistive heater textile using printed electronic coatings: towards application in automobile","authors":"Léopold Diatezo, M. Le, Christine Tonellato, Lluïsa Puig, J. Capsal, P. Cottinet","doi":"10.1117/12.2656929","DOIUrl":"https://doi.org/10.1117/12.2656929","url":null,"abstract":"Intelligent textiles are predicted to see a surprising development in the future. The consequence of this revived interest has been the growth of automobile industry and the improvement of innovative methods for the incorporation of electrical and thermal features into textiles materials. In the present work, the development of a smart stretchable heating device integrated into a car-seat headrest has been identified as a target application. The need for smart conductive materials is becoming increasingly apparent, but they still represent a great challenge for the heating textile area, particularly in additive manufacturing. Polymer-based composites reinforced with copper and carbon powders, attractive as advanced coatings, seems to be good solutions to this issue. Such composites are now acquainted as ideal materials for electronic device engineering and fabrication, thanks to their excellent electrical and thermal conductivities while maintaining suitable mechanical compliance. For easier process and integration, an extrusion 3D printer is employed to achieve thin films coated on the surface of the textile substrate. The developed heater device consists of two principal copper electrodes (so-called power bus), and one heating resistor made of carbon composites designed in different configurations. Finite element models (FEM) are developed to predict the heating behavior of the tested fabric substrates under different pattern suggestions. Experimental measurements via a thermal camera are in consistent with the numerical solutions. It is pointed out that the design optimization based on an adequate tuning of the pattern’s parameters allows to solve inevitable matters in terms of temperature regularity and overheating effect.","PeriodicalId":89272,"journal":{"name":"Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics","volume":"58 1","pages":"124830O - 124830O-11"},"PeriodicalIF":0.0,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74267379","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

Self-powered electronic mechanical metamaterials 自供电电子机械超材料

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-28 DOI: 10.1117/12.2652258

Qianyun Zhang, Kaveh Barri, Pengcheng Jiao, Jochen Mueller, Zhong Lin Wang, Amir H. Alavi

{"title":"Self-powered electronic mechanical metamaterials","authors":"Qianyun Zhang, Kaveh Barri, Pengcheng Jiao, Jochen Mueller, Zhong Lin Wang, Amir H. Alavi","doi":"10.1117/12.2652258","DOIUrl":"https://doi.org/10.1117/12.2652258","url":null,"abstract":"Active mechanical metamaterials have shown a glimpse of their capacity to create the foundation for intelligent matter. This study presents the concept of mechanical metamaterial electronics (meta-mechanotronics) to design intelligent matter with information processing capability. This advanced functionality is achieved by fusing the mechanical metamaterials, digital electronics and nano energy harvesting technologies. Electronic mechanical metamaterials explored under the meta-mechanotronics paradigm rely merely on their constituent components to perform self-powered mechanical-electrical-logic operations. A proof-of-concept digital unit cell is presented as the 2-bit building block for electronic mechanical metamaterials. The digital unit cell is rationally designed as a monostable origami-inspired metamaterial with twist buckling behavior and specific multi-motion properties to synthesize discrete mechanical configurations and realize digital logic gates. Experimental studies are performed to evaluate the digital computing performance of the designed mechanical metamaterial logic gate.","PeriodicalId":89272,"journal":{"name":"Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics","volume":"1 1","pages":"124830C - 124830C-6"},"PeriodicalIF":0.0,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79597168","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

Design and development of novel rotary actuation system based on shape memory alloy springs driven mechanism arranged in bipennate muscle architecture 基于形状记忆合金弹簧驱动机构的旋转驱动系统的设计与开发

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-28 DOI: 10.1117/12.2658471

Yashaswi Sinha, Kanhaiya Lal Chaurasiya, Y. A. Patel, Tanuj Gupta, B. Bhattacharya

{"title":"Design and development of novel rotary actuation system based on shape memory alloy springs driven mechanism arranged in bipennate muscle architecture","authors":"Yashaswi Sinha, Kanhaiya Lal Chaurasiya, Y. A. Patel, Tanuj Gupta, B. Bhattacharya","doi":"10.1117/12.2658471","DOIUrl":"https://doi.org/10.1117/12.2658471","url":null,"abstract":"Actuators regulate motion in manufacturing and industrial automation by applying an excitation force or torque. Conventional actuators do have their advantages; however, they have multiple components (prone to wear and tear), are expensive during maintenance, bulky, and suffer from backlashes. Therefore, smart-material-based actuators have been increasingly proposed to overcome such shortcomings. Shape memory alloy (SMA) is generally considered for such applications due to its high power-to-weight ratio, noise-free, energy-efficient operation, and facilitating miniaturization. The current research exploits the advantages of the pennate musculature with the properties of SMA to develop a bipennate SMA-based rotary actuator. Pennate muscle fibers are aligned obliquely to the muscle line of action, enabling fiber force to be coupled to macro-level muscle force, resulting in increased force output. The study presents an ergonomic-design-integration-framework of an SMA-driven rotary actuator. The lightweight gearless actuator has drivability without backlash, compatible with a rhombus-based-compliant power transmission system. An analytical model of the bipennate SMA-based rotary actuator has been developed and experimentally validated. The new actuator delivers at least twice the actuation torque (2.1 N-m) compared to the SMA-based rotary actuators reported in the literature. The actuator also delivers a high associated angular displacement ranging from 60°-70°. The actuator design parameters have been optimized by implementing a constrained gradient descent algorithm such that the output torque, stroke, and efficiency of the actuator system can be tailored as per the requirement and application. The actuator has varied applications, from healthcare devices to next-generation space robots.","PeriodicalId":89272,"journal":{"name":"Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics","volume":"48 1","pages":"124831K - 124831K-13"},"PeriodicalIF":0.0,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89853750","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

Driving power supply for an avionic piezoelectric deicing system 一种航空电子压电除冰系统驱动电源

Smart structures and materials. Nondestructive evaluation for health monitoring and diagnostics Pub Date : 2023-04-28 DOI: 10.1117/12.2657036

Modar Jomaa, D. Vasić, F. Costa, Pierre-Étienne Levy, Marwan Ali

引用次数: 0