Pub Date : 2016-08-25DOI: 10.1109/ICMAE.2016.7549610
Li Wei, Sukhan Lee
The dead-reckoning techniques such as visual and wheel odometry for Rover localization is proved to be effective on short to medium-range traverses. However the accumulated error would lead to a degraded performance in a long range travel. In this paper, a global localization algorithm is proposed to deal with the long-range rover localization in lunar/planetary environment. This algorithm is designed to localize a rover by matching 3D peak features extracted from rover imagery with their correspondences extracted from simulated imagery based on digital elevation map. We present a method to represent peak's 3D shape by a multivariate distribution, and match it with other peaks using hotelling's t-square test. After matching, Bayesian network is applied to estimate the position of the rover using matched corresponding peaks. Devon island dataset is used for testing and evaluating the proposed method, as well as comparing it with VIPER. Test results show that proposed method provides an accurate localization in an absolute frame of reference, and achieves a better result than VIPER system.
{"title":"3D peak based long range rover localization","authors":"Li Wei, Sukhan Lee","doi":"10.1109/ICMAE.2016.7549610","DOIUrl":"https://doi.org/10.1109/ICMAE.2016.7549610","url":null,"abstract":"The dead-reckoning techniques such as visual and wheel odometry for Rover localization is proved to be effective on short to medium-range traverses. However the accumulated error would lead to a degraded performance in a long range travel. In this paper, a global localization algorithm is proposed to deal with the long-range rover localization in lunar/planetary environment. This algorithm is designed to localize a rover by matching 3D peak features extracted from rover imagery with their correspondences extracted from simulated imagery based on digital elevation map. We present a method to represent peak's 3D shape by a multivariate distribution, and match it with other peaks using hotelling's t-square test. After matching, Bayesian network is applied to estimate the position of the rover using matched corresponding peaks. Devon island dataset is used for testing and evaluating the proposed method, as well as comparing it with VIPER. Test results show that proposed method provides an accurate localization in an absolute frame of reference, and achieves a better result than VIPER system.","PeriodicalId":371629,"journal":{"name":"2016 7th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114087060","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}
Pub Date : 2016-08-25DOI: 10.1109/ICMAE.2016.7549529
Fu Xiao-yan, Dong Yan, Xudong Jiang, Li Xi-wen
In the casting process of thermosetting explosives, mixing slurry usually appears particulate matter stack and substances uneven contact, which may result in porosity and shrinkage defects in the products. To solve this problem, vibratory technique was introduced to the casting equipment. Based on mechanical vibration theory, the motion characteristics of the vibration casting equipment in single degree freedom vibration were obtained. Through ADAMS software, the equipment's motion characteristics were simulated and analyzed. Additionally vibration displacement amplitudes in vertical direction of the vibrating object (including vertical vibration, tilt vibration and rocking vibration) under conditions of vibration state at different exciting force's frequencies and amplitudes have been acquired, which were very close to theoretical results of the single degree freedom force at different frequencies and amplitudes.
{"title":"Dynamic analysis of vibration casting equipment","authors":"Fu Xiao-yan, Dong Yan, Xudong Jiang, Li Xi-wen","doi":"10.1109/ICMAE.2016.7549529","DOIUrl":"https://doi.org/10.1109/ICMAE.2016.7549529","url":null,"abstract":"In the casting process of thermosetting explosives, mixing slurry usually appears particulate matter stack and substances uneven contact, which may result in porosity and shrinkage defects in the products. To solve this problem, vibratory technique was introduced to the casting equipment. Based on mechanical vibration theory, the motion characteristics of the vibration casting equipment in single degree freedom vibration were obtained. Through ADAMS software, the equipment's motion characteristics were simulated and analyzed. Additionally vibration displacement amplitudes in vertical direction of the vibrating object (including vertical vibration, tilt vibration and rocking vibration) under conditions of vibration state at different exciting force's frequencies and amplitudes have been acquired, which were very close to theoretical results of the single degree freedom force at different frequencies and amplitudes.","PeriodicalId":371629,"journal":{"name":"2016 7th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116252894","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}
Pub Date : 2016-08-25DOI: 10.1109/ICMAE.2016.7549585
A. Ramprakash, T. Muruganandam
The present paper experimentally investigates the flow field characteristics, starting and a unstarting process of a high-speed air inlet, when the cowl is opened from the fully closed condition at three different cowl rotation rates. High-Speed schlieren image synchronized with the pressure data is used to better understand the changes in internal flow behavior of the inlet. By employing a simple variable geometry inlet, inlet starting is realized even at low free stream Mach number by movement of separation bubble inside the inlet and attachment of cowl lip shock in the cowl lip. Separation bubble formed at the cowl hinge junction and in the expansion corner majorly alters the internal shock structure. As cowl moves further up the separation bubble at the cowl hinge location grows leading to aerodynamic blockage and resulting in inlet unstart. For the present inlet model, unstart is detected earlier by two pressure ports, one located in the throat and another in the middle of the isolator compared to other ports and hence helps in preventing inlet to unstart by sending signals to the feedback system.
{"title":"Experimental study on internal flowfield characteristics and start-unstart behaviour in a two-dimensional variable geometry inlet","authors":"A. Ramprakash, T. Muruganandam","doi":"10.1109/ICMAE.2016.7549585","DOIUrl":"https://doi.org/10.1109/ICMAE.2016.7549585","url":null,"abstract":"The present paper experimentally investigates the flow field characteristics, starting and a unstarting process of a high-speed air inlet, when the cowl is opened from the fully closed condition at three different cowl rotation rates. High-Speed schlieren image synchronized with the pressure data is used to better understand the changes in internal flow behavior of the inlet. By employing a simple variable geometry inlet, inlet starting is realized even at low free stream Mach number by movement of separation bubble inside the inlet and attachment of cowl lip shock in the cowl lip. Separation bubble formed at the cowl hinge junction and in the expansion corner majorly alters the internal shock structure. As cowl moves further up the separation bubble at the cowl hinge location grows leading to aerodynamic blockage and resulting in inlet unstart. For the present inlet model, unstart is detected earlier by two pressure ports, one located in the throat and another in the middle of the isolator compared to other ports and hence helps in preventing inlet to unstart by sending signals to the feedback system.","PeriodicalId":371629,"journal":{"name":"2016 7th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116292592","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}
Pub Date : 2016-08-25DOI: 10.1109/ICMAE.2016.7549581
Abdurrhman A. Alroqi, Weiji Wang
Pre-spinning the wheel is the proposed solution to the elimination of aircraft landing smoke caused by high tire tread temperature during touchdown. In this paper, a case study of the aircraft's main landing gear has been simulated for a single wheel, using a coupled structural - thermal transient analysis in ANSYS to estimate the tire tread temperature for a typical landing and for when wheels are pre-spun, in order to validate the technique of pre-spinning the wheel; and to calculate how much pre-rotation is enough to avoid aircraft landing smoke.
{"title":"The prevention of aircraft tires overheating by pre-rotating the wheels","authors":"Abdurrhman A. Alroqi, Weiji Wang","doi":"10.1109/ICMAE.2016.7549581","DOIUrl":"https://doi.org/10.1109/ICMAE.2016.7549581","url":null,"abstract":"Pre-spinning the wheel is the proposed solution to the elimination of aircraft landing smoke caused by high tire tread temperature during touchdown. In this paper, a case study of the aircraft's main landing gear has been simulated for a single wheel, using a coupled structural - thermal transient analysis in ANSYS to estimate the tire tread temperature for a typical landing and for when wheels are pre-spun, in order to validate the technique of pre-spinning the wheel; and to calculate how much pre-rotation is enough to avoid aircraft landing smoke.","PeriodicalId":371629,"journal":{"name":"2016 7th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134312447","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}
Pub Date : 2016-08-25DOI: 10.1109/ICMAE.2016.7549549
Cheng-Yang Chang, Tsung-Lin Chen
This paper proposed a new design of the dual-axis control input, dual-axis position measurement piezoelectric gyroscope. Using piezoelectric actuation/ sensing to implement this gyroscope can be much more difficult than the conventional gyroscope, which equips only single-axis control input and dual-axis position measurement. This is because multiple mode shapes may exist in the flexure deformation, which complicates the relation between flexure deformation and the proof mass position. This paper solves this multiple-mode-shape problem by designing the location and dimensions of the electrodes such that the piezoelectric force would not excite multiple mode shapes and the voltage output of the sensing electrodes responds only to specific mode shapes. The proposed design achieves a sensitivity of 8 μv/deg/sec for the angular rate sensing and a quadrature error of 0.007%. The low quadrature error could be one of the advantages of sensing the position of the proof mass via sensing the specific deformed shape of the flexure.
{"title":"Design and simulation of a new dual-axis control input piezoelectric gyroscope","authors":"Cheng-Yang Chang, Tsung-Lin Chen","doi":"10.1109/ICMAE.2016.7549549","DOIUrl":"https://doi.org/10.1109/ICMAE.2016.7549549","url":null,"abstract":"This paper proposed a new design of the dual-axis control input, dual-axis position measurement piezoelectric gyroscope. Using piezoelectric actuation/ sensing to implement this gyroscope can be much more difficult than the conventional gyroscope, which equips only single-axis control input and dual-axis position measurement. This is because multiple mode shapes may exist in the flexure deformation, which complicates the relation between flexure deformation and the proof mass position. This paper solves this multiple-mode-shape problem by designing the location and dimensions of the electrodes such that the piezoelectric force would not excite multiple mode shapes and the voltage output of the sensing electrodes responds only to specific mode shapes. The proposed design achieves a sensitivity of 8 μv/deg/sec for the angular rate sensing and a quadrature error of 0.007%. The low quadrature error could be one of the advantages of sensing the position of the proof mass via sensing the specific deformed shape of the flexure.","PeriodicalId":371629,"journal":{"name":"2016 7th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131604309","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}
Pub Date : 2016-08-25DOI: 10.1109/ICMAE.2016.7549522
G. Lebon, A. Kao, C. Tonry, K. Pericleous
The space industry requires strong lightweight alloys to decrease launching costs and to increase the reliability of components. One promising technique is the application of ultrasound to a solidifying melt, which has been demonstrated to enhance the thermo-physical qualities of the treated sample through grain refinement. The underlying mechanism is through acoustic cavitation; however, it is not well understood how cavitating bubbles disrupt the microstructure. Further understanding of the fundamentals of ultrasonic melt processing is required to optimize treatment parameters, thus enabling the efficient production of lighter, stronger alloys at an industrial scale. To achieve this goal and investigate the effect of cavitating bubbles on the solidification front, we present a high-order micro-scale acoustic cavitation model. This model is applied to the interaction between cavitating bubbles and a needle dendrite of succinonitrile 1 wt. % camphor organic transparent alloy for which high-speed digital imaging is available in the literature.
{"title":"Coupling acoustic cavitation and solidification in the modeling of light alloy melt ultrasonic treatment","authors":"G. Lebon, A. Kao, C. Tonry, K. Pericleous","doi":"10.1109/ICMAE.2016.7549522","DOIUrl":"https://doi.org/10.1109/ICMAE.2016.7549522","url":null,"abstract":"The space industry requires strong lightweight alloys to decrease launching costs and to increase the reliability of components. One promising technique is the application of ultrasound to a solidifying melt, which has been demonstrated to enhance the thermo-physical qualities of the treated sample through grain refinement. The underlying mechanism is through acoustic cavitation; however, it is not well understood how cavitating bubbles disrupt the microstructure. Further understanding of the fundamentals of ultrasonic melt processing is required to optimize treatment parameters, thus enabling the efficient production of lighter, stronger alloys at an industrial scale. To achieve this goal and investigate the effect of cavitating bubbles on the solidification front, we present a high-order micro-scale acoustic cavitation model. This model is applied to the interaction between cavitating bubbles and a needle dendrite of succinonitrile 1 wt. % camphor organic transparent alloy for which high-speed digital imaging is available in the literature.","PeriodicalId":371629,"journal":{"name":"2016 7th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115187008","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}
Pub Date : 2016-08-25DOI: 10.1109/ICMAE.2016.7549536
Likun Ren, Weimin Lv
This paper proposes a novel methodology of rolling bearings remaining useful life (RUL) estimation based on sparse representation theory. By analyzing the inner relationships among monitored data, three particular properties of remaining useful life estimation tasks are concluded as the key prior knowledge: monotonicity and continuity of RUL evaluation show the relationships of monitored data and the evaluated RUL; similarity of adjacent monitored data lays the foundation of data driven RUL evaluation methodologies. These properties are then integrated into dictionary learning and sparse coding of sparse representation progress to build a remaining useful life estimation model. In the dictionary learning step, monotonicity and similarity are integrated through a matrix operator to learn more effective and concise dictionary; in the sparse coding step, new sparse model is proposed involving continuity and similarity. In the last step, the life ratio of training set to testing set is calculated through a Hough voting with sparse codes acquired from sparse coding step. With this ratio, the useful life of testing set can be calculated. So, the RUL of the testing set can be evaluated through useful life subtracting the running duration. Experiments are conducted on the ball bearing data provided by FEMTO-ST Institute and the results show the efficiency of our methodologies.
{"title":"Remaining useful life estimation of rolling bearings based on sparse representation","authors":"Likun Ren, Weimin Lv","doi":"10.1109/ICMAE.2016.7549536","DOIUrl":"https://doi.org/10.1109/ICMAE.2016.7549536","url":null,"abstract":"This paper proposes a novel methodology of rolling bearings remaining useful life (RUL) estimation based on sparse representation theory. By analyzing the inner relationships among monitored data, three particular properties of remaining useful life estimation tasks are concluded as the key prior knowledge: monotonicity and continuity of RUL evaluation show the relationships of monitored data and the evaluated RUL; similarity of adjacent monitored data lays the foundation of data driven RUL evaluation methodologies. These properties are then integrated into dictionary learning and sparse coding of sparse representation progress to build a remaining useful life estimation model. In the dictionary learning step, monotonicity and similarity are integrated through a matrix operator to learn more effective and concise dictionary; in the sparse coding step, new sparse model is proposed involving continuity and similarity. In the last step, the life ratio of training set to testing set is calculated through a Hough voting with sparse codes acquired from sparse coding step. With this ratio, the useful life of testing set can be calculated. So, the RUL of the testing set can be evaluated through useful life subtracting the running duration. Experiments are conducted on the ball bearing data provided by FEMTO-ST Institute and the results show the efficiency of our methodologies.","PeriodicalId":371629,"journal":{"name":"2016 7th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"2012 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127383066","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}
Pub Date : 2016-08-25DOI: 10.1109/ICMAE.2016.7549603
Saijal Kizhakke Kodakkattu, ML Joy, K. Nair
Helicopters are one of the most useful classes of flying vehicles because of the vertical take-off, landing and hovering capability, but suffers from severe vibration mainly from the rotor. Trailing-edge flaps are one of the successful techniques to reduce vibration in helicopter rotor. In this study, attempt is made to find an optimum Flap Peak Deflection Angle (FPDA) in reducing rotor hub vibration with minimum penalty in flap power requirement. Result show that the optimum design point at FPDA=±60 gives a vibration reduction of about 88% compared to FPDA=±20, but at the cost of increased flap power requirement.
{"title":"Optimal trailing-edge flaps in helicopter for vibration reduction at various peak deflections of the flaps","authors":"Saijal Kizhakke Kodakkattu, ML Joy, K. Nair","doi":"10.1109/ICMAE.2016.7549603","DOIUrl":"https://doi.org/10.1109/ICMAE.2016.7549603","url":null,"abstract":"Helicopters are one of the most useful classes of flying vehicles because of the vertical take-off, landing and hovering capability, but suffers from severe vibration mainly from the rotor. Trailing-edge flaps are one of the successful techniques to reduce vibration in helicopter rotor. In this study, attempt is made to find an optimum Flap Peak Deflection Angle (FPDA) in reducing rotor hub vibration with minimum penalty in flap power requirement. Result show that the optimum design point at FPDA=±60 gives a vibration reduction of about 88% compared to FPDA=±20, but at the cost of increased flap power requirement.","PeriodicalId":371629,"journal":{"name":"2016 7th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132140049","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}
Pub Date : 2016-08-25DOI: 10.1109/ICMAE.2016.7549591
I. McAndrew, E. Navarro, Orin L. Godsey
Unmanned Aerial Vehicles are typically low-cost and frequently have aerofoils sections that are symmetrical as these are more economical to manufacture. Low speeds are possible and stability acceptable and lift can still be generated providing the angle of incident is greater than zero. The research presented here is with a focus on how susceptible if the leading edge is damaged or has debris resulting from operating on grass or on airfields in non-standard conditions.
{"title":"Symmetrical aerofoils and the influences of damage or debris for Unmanned Aerial Vehicles","authors":"I. McAndrew, E. Navarro, Orin L. Godsey","doi":"10.1109/ICMAE.2016.7549591","DOIUrl":"https://doi.org/10.1109/ICMAE.2016.7549591","url":null,"abstract":"Unmanned Aerial Vehicles are typically low-cost and frequently have aerofoils sections that are symmetrical as these are more economical to manufacture. Low speeds are possible and stability acceptable and lift can still be generated providing the angle of incident is greater than zero. The research presented here is with a focus on how susceptible if the leading edge is damaged or has debris resulting from operating on grass or on airfields in non-standard conditions.","PeriodicalId":371629,"journal":{"name":"2016 7th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127838334","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}
Pub Date : 2016-08-25DOI: 10.1109/ICMAE.2016.7549569
Yoshizumi Ito, Minoru Watanabe, A. Ogiwara
Currently, space systems require highly radiation tolerant memory. If memory with high radiation tolerance were available, then shielding of embedded systems for use in space could be reduced or removed, thereby greatly decreasing the weight of such space embedded systems. This study examines the radiation-hardened characteristics of a holographic memory. Using a cobalt 60 gamma radiation source, radiation experiments were conducted for a photopolymer holographic memory. Results show that the holographic memory can function correctly at a 100 Mrad total-ionizing dose. The radiation tolerance of the holographic memory is over 300 times higher than that of an electrically erasable programmable read-only memory (EEPROM). Moreover, this paper shows a demonstration applied for an optically reconfigurable gate array. The configuration procedure could be executed by using the radiation-damaged holographic memory.
{"title":"Demonstrating a holographic memory having 100 Mrad total-ionizing-dose tolerance","authors":"Yoshizumi Ito, Minoru Watanabe, A. Ogiwara","doi":"10.1109/ICMAE.2016.7549569","DOIUrl":"https://doi.org/10.1109/ICMAE.2016.7549569","url":null,"abstract":"Currently, space systems require highly radiation tolerant memory. If memory with high radiation tolerance were available, then shielding of embedded systems for use in space could be reduced or removed, thereby greatly decreasing the weight of such space embedded systems. This study examines the radiation-hardened characteristics of a holographic memory. Using a cobalt 60 gamma radiation source, radiation experiments were conducted for a photopolymer holographic memory. Results show that the holographic memory can function correctly at a 100 Mrad total-ionizing dose. The radiation tolerance of the holographic memory is over 300 times higher than that of an electrically erasable programmable read-only memory (EEPROM). Moreover, this paper shows a demonstration applied for an optically reconfigurable gate array. The configuration procedure could be executed by using the radiation-damaged holographic memory.","PeriodicalId":371629,"journal":{"name":"2016 7th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"2016 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114572739","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}
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