现代机械工程(英文)最新文献_第9页

FE Dynamic Analysis Using Moving Support Element on Multi-Span Beams Subjected to Support Motions 支承运动下多跨梁的动支承单元有限元动力分析

现代机械工程(英文) Pub Date : 2015-11-11 DOI: 10.4236/MME.2015.54011

Yong-woo Kim, S. Lee

引用次数: 1

An Environmental Control System for ALS Patient Using Finger Movement 肌萎缩性侧索硬化症患者手指运动环境控制系统

现代机械工程(英文) Pub Date : 2015-11-11 DOI: 10.4236/MME.2015.54012

Chao Zhang, Masatomo Shibata, K. Takashima, Jiangli Yu, T. Ishimatsu, Joel Palomino

引用次数: 0

Pipe Inspection System by Guide Wave Using a Long Distance Waveguide 利用长距离波导的导波管道检测系统

现代机械工程(英文) Pub Date : 2015-11-11 DOI: 10.4236/MME.2015.54014

R. Murayama, Kenshi Matsumoto, K. Ushitani, Makiko Makiko

引用次数: 4

Improvement of a Joystick Controller for Electric Wheelchair User 电动轮椅操纵杆控制器的改进

现代机械工程(英文) Pub Date : 2015-11-11 DOI: 10.4236/MME.2015.54013

Masatomo Shibata, Chao Zhang, T. Ishimatsu, Motohiro Tanaka, Joel Palomino

{"title":"Improvement of a Joystick Controller for Electric Wheelchair User","authors":"Masatomo Shibata, Chao Zhang, T. Ishimatsu, Motohiro Tanaka, Joel Palomino","doi":"10.4236/MME.2015.54013","DOIUrl":"https://doi.org/10.4236/MME.2015.54013","url":null,"abstract":"The electric wheelchair is an effective machine for people with lower limb disability. The user controls the wheelchair by a joystick that helps the user to navigate the wheelchair along the desired path. Suppose the user on the wheelchair wants to operate the computer for his jobs or enjoyment, it is preferable for the user to be able to operate the computer without transferring from the wheelchair to a computer desk. Of course, some computer input devices are available for wheelchairs. One reasonable idea is to use the familiar joystick on the wheelchair as a computer input device. In this paper a joystick controller is proposed, which enables the user on the wheelchair to operate the computer settled on a nearby table. The proposed joystick controller can be achieved by mounting the sensor unit on the joystick without any modification of the conventional wheelchair controller. The principle of the sensing unit is to measure the inclination angle and the direction of the joystick with an acceleration and gyro sensor. Then the sensing unit sends the control data to the computer via an infrared or wireless signal. This proposal is based on a request done by the wheelchair users.","PeriodicalId":69007,"journal":{"name":"现代机械工程(英文)","volume":"5 1","pages":"132-138"},"PeriodicalIF":0.0,"publicationDate":"2015-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70497490","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: 10

Studying the Preheating Effect on Certain Mechanical Properties of the Coating Layer by Vacuum Ion Plasma Coating 研究了预热对真空离子等离子体涂层某些力学性能的影响

现代机械工程(英文) Pub Date : 2015-11-11 DOI: 10.4236/MME.2015.54010

Abdul Majeed

引用次数: 0

Application of Null Space Based Behavior Control to the Swarm Robot’s Control 基于零空间行为控制在群体机器人控制中的应用

现代机械工程(英文) Pub Date : 2015-07-10 DOI: 10.4236/MME.2015.53009

L. T. Nga, L. Lan

引用次数: 0

Pillow-Type Computer Input Device for Serious Spinal Cord Injury 枕式严重脊髓损伤计算机输入装置

现代机械工程(英文) Pub Date : 2015-07-10 DOI: 10.4236/MME.2015.53006

Jiangli Yu, T. Ishimatsu, Chao Zhang, L. Murray, Motohiro Tanaka

引用次数: 2

Assessment of Wind Energy Potential as a Power Generation Source in the Azraq South, Northeast Badia, Jordan 约旦巴迪亚东北部阿兹拉克南部风能发电潜力评估

现代机械工程(英文) Pub Date : 2015-07-10 DOI: 10.4236/MME.2015.53008

Omar Al-Nhoud, Mohammad H. Al-Smairan

{"title":"Assessment of Wind Energy Potential as a Power Generation Source in the Azraq South, Northeast Badia, Jordan","authors":"Omar Al-Nhoud, Mohammad H. Al-Smairan","doi":"10.4236/MME.2015.53008","DOIUrl":"https://doi.org/10.4236/MME.2015.53008","url":null,"abstract":"Due to several climate changes caused by greenhouse gases and to increasing need for clean energy sources, more attention has been grew to renewable energy sources and wind energy is one of the most promising energy source in the future. The current paper presents an investigation of the wind power potential in Azraq south area, a remote location in the Northeast Badia of Jordan using real wind speed data. Also, other wind characteristics with the help of one method of meteorological and Weibull are assessed to evaluate of which at a height of 10 m above ground level and in open area. Long term data (1991-2001) period measured mean wind speed data measured at 10 m height was analyzed. Based on these data, the highest and the lowest wind power potential are in July and December, respectively. Also, it was indicated that the shape and scale parameters for Azraq south varied over a wide range. The monthly values of Weibull shape parameter k ranged from 1.05 to 4.2 with a mean value of 3.06. While the monthly values of the Weibull scale parameter c were in the range of m/s, with a mean value of 4.57 m/s. It was also concluded that the site studied was not suitable for electric wind application in large-scale. It was found that the wind potential of the region could be adequate for non-grid connected electrical and mechanical applications, such as wind generators, battery charging and water pumping as well as agricultural applications.","PeriodicalId":69007,"journal":{"name":"现代机械工程(英文)","volume":"5 1","pages":"87-96"},"PeriodicalIF":0.0,"publicationDate":"2015-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70497248","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: 15

Whirl Interaction of a Drill Bit with the Bore-Hole Bottom 钻头与井底的旋转相互作用

现代机械工程(英文) Pub Date : 2015-07-10 DOI: 10.4236/MME.2015.53005

N. Musa, V. Gulyayev, L. Shevchuk, Hasan Aldabas

{"title":"Whirl Interaction of a Drill Bit with the Bore-Hole Bottom","authors":"N. Musa, V. Gulyayev, L. Shevchuk, Hasan Aldabas","doi":"10.4236/MME.2015.53005","DOIUrl":"https://doi.org/10.4236/MME.2015.53005","url":null,"abstract":"This paper deals with the theoretic simulation of a drill bit whirling under conditions of its contact interaction with the bore-hole bottom rock plane. The bit is considered to be an absolutely rigid ellipsoidal body with uneven surface. It is attached to the lower end of a rotating elastic drill string. In the perturbed state, the bit can roll without sliding on the bore-hole bottom, performing whirling vibrations (the model of dynamic equilibrium with pure rolling when maximum cohesive force does not exceed the ultimate Coulombic friction). To describe these motions, a nonholonomic dynamic model is proposed, constitutive partial differential equations are deduced. With their use, the whirling vibrations of oblong and oblate ellipsoidal bits are analyzed, the functions of cohesive (frictional) forces are calculated. It is shown that the system of elastic drill string and ellipsoidal bit can acquire stable or unstable whirl modes with approaching critical Eulerian values by the parameters of axial force, torque and angular velocity. The analogy of the found modes of motions with ones of the Celtic stones is established. It is shown that the ellipsoidal bits can stop their whirling vibrations and change directions of their circumferential motions in the same manner as the ellipsoidal Celtic stones do. As this takes place, the trajectories of the oblate ellipsoidal bits are characterized by more complicated paths and irregularities.","PeriodicalId":69007,"journal":{"name":"现代机械工程(英文)","volume":"05 1","pages":"41-60"},"PeriodicalIF":0.0,"publicationDate":"2015-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70497591","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

Adaptive Real-Coded Genetic Algorithm for Identifying Motor Systems 运动系统识别的自适应实编码遗传算法

现代机械工程(英文) Pub Date : 2015-07-10 DOI: 10.4236/MME.2015.53007

R. Fung, C. Lin

引用次数: 4