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Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing最新文献

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Method of Preventing Unstable Vibration Caused by Time Delays in Contact Rotating Systems 防止接触旋转系统时滞引起的不稳定振动的方法
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-12-15 DOI: 10.1299/JSMEC.49.973
N. Sowa, T. Kondou, H. Mori, M. Choi
{"title":"Method of Preventing Unstable Vibration Caused by Time Delays in Contact Rotating Systems","authors":"N. Sowa, T. Kondou, H. Mori, M. Choi","doi":"10.1299/JSMEC.49.973","DOIUrl":"https://doi.org/10.1299/JSMEC.49.973","url":null,"abstract":"In the field of mechanical engineering, a large number of systems exhibit time delays caused by, for example, viscoelastic deformation, plastic deformation, cutting, grinding, and wear. These time delays often cause unstable vibrations during the operation of these systems. Such phenomena occur as the chattering of machine tools and as the pattern formation phenomena in contact rotating systems. In the present report, the authors investigate the property of a new stability analysis developed for unstable vibration in contact rotating systems and apply it to a system with a time delay of one half of a rotation period. As a typical example, a prevention method used to change the structural design is formulated for two- and three-DOF systems. The validity of the present method is confirmed by the results of numerical computations.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123787259","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: 9
Location-Driven Image Retrieval for Images Collected by a Mobile Robot 移动机器人采集图像的位置驱动图像检索
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-12-15 DOI: 10.1299/JSMEC.49.1058
Kanji Tanaka, M. Hirayama, N. Okada, E. Kondo
{"title":"Location-Driven Image Retrieval for Images Collected by a Mobile Robot","authors":"Kanji Tanaka, M. Hirayama, N. Okada, E. Kondo","doi":"10.1299/JSMEC.49.1058","DOIUrl":"https://doi.org/10.1299/JSMEC.49.1058","url":null,"abstract":"Mobile robot teleoperation is a method for a human user to interact with a mobile robot over time and distance. Successful teleoperation depends on how well images taken by the mobile robot are visualized to the user. To enhance the efficiency and flexibility of the visualization, an image retrieval system on such a robot’s image database would be very useful. The main difference of the robot’s image database from standard image databases is that various relevant images exist due to variety of viewing conditions. The main contribution of this paper is to propose an efficient retrieval approach, named location-driven approach, utilizing correlation between visual features and real world locations of images. Combining the location-driven approach with the conventional feature-driven approach, our goal can be viewed as finding an optimal classifier between relevant and irrelevant feature-location pairs. An active learning technique based on support vector machine is extended for this aim.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129575189","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: 3
A Study on Robot-Human System with Consideration of Individual Preferences : 2nd Report, Multimodal Human-Machine Interface for Object-Handing Robot System 考虑个体偏好的机器人-人系统研究:第二报告，多模态人机界面的物体处理机器人系统
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-12-15 DOI: 10.1299/jsmec.49.1033
M. Jindai, S. Shibata, Tomonori Yamamoto, Tomio Watanabe
{"title":"A Study on Robot-Human System with Consideration of Individual Preferences : 2nd Report, Multimodal Human-Machine Interface for Object-Handing Robot System","authors":"M. Jindai, S. Shibata, Tomonori Yamamoto, Tomio Watanabe","doi":"10.1299/jsmec.49.1033","DOIUrl":"https://doi.org/10.1299/jsmec.49.1033","url":null,"abstract":"In this study, we propose an object-handing robot system with a multimodal human-machine interface which is composed of speech recognition and image processing units. Using this multimodal human-machine interface, the cooperator can order the object-handing robot system using voice commands and hand gestures. In this robot system, the motion parameters of the robot, which are maximum velocity, velocity profile peak and handing position, can be adjusted by the voice commands or the hand gestures in order to realize the most appropriate motion of the robot. Furthermore, the cooperator can order the handing of objects using voice commands along with hand gestures. In these voice commands, the cooperator can use adverbs. This permits the cooperator to realize efficient adjustments, because the adjustment value of each motion parameters is determined by adverbs. In particular, adjustment values corresponding to adverbs are estimated by fuzzy inference in order to take into consideration the ambiguities of human speech.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130832619","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: 8
A Study on the Development of the Off-Line Software for Regulating the 6 D.O.F Circular Fixator 六自由度圆固定器离线调节软件的开发研究
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-12-15 DOI: 10.1299/JSMEC.49.1123
Bum-Seok Park, I. Choi, Jin-Woo Kim, Seung-Yeol Lee, Chang-Soo Han
{"title":"A Study on the Development of the Off-Line Software for Regulating the 6 D.O.F Circular Fixator","authors":"Bum-Seok Park, I. Choi, Jin-Woo Kim, Seung-Yeol Lee, Chang-Soo Han","doi":"10.1299/JSMEC.49.1123","DOIUrl":"https://doi.org/10.1299/JSMEC.49.1123","url":null,"abstract":"","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"46 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132045934","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
Stability Analysis of a Pipe Conveying Periodically Pulsating Fluid Using Finite Element Method 周期脉动流体输送管道的有限元稳定性分析
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-12-15 DOI: 10.1299/JSMEC.49.1116
W. Jeong, Y. Seo, S. Jeong, Seong-Hyeon Lee, W. Yoo
{"title":"Stability Analysis of a Pipe Conveying Periodically Pulsating Fluid Using Finite Element Method","authors":"W. Jeong, Y. Seo, S. Jeong, Seong-Hyeon Lee, W. Yoo","doi":"10.1299/JSMEC.49.1116","DOIUrl":"https://doi.org/10.1299/JSMEC.49.1116","url":null,"abstract":"It is well known that the constant velocity of the fluid in a pipe which makes the lowest natural frequency zero is called critical velocity. The pipe becomes unstable when the fluid in a pipe is faster than the critical velocity. If the velocity of the fluid in a pipe varies with time, however, the instability of a pipe will occur even though the mean velocity of the fluid is below the critical velocity. In this paper, a new method for the stability analysis of a pipe conveying fluid which pulsates periodically is presented. The finite element model is formulated to solve the governing equation numerically. The coupled effects of several harmonic components in the velocity of fluid to a pipe is discussed. A new unstable region is shown in this paper which will not appear in the stability analysis of single pulsating frequency. The results of the stability analysis presented in this paper are verified by the time domain anlysis.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130176176","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
Magnetic Suspension Actuator Control in Ball and Beam System Demonstration 磁悬浮作动器在球梁系统中的控制演示
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-12-15 DOI: 10.1299/JSMEC.49.1018
Chin E. Lin, C. C. Ker, R. Wang
{"title":"Magnetic Suspension Actuator Control in Ball and Beam System Demonstration","authors":"Chin E. Lin, C. C. Ker, R. Wang","doi":"10.1299/JSMEC.49.1018","DOIUrl":"https://doi.org/10.1299/JSMEC.49.1018","url":null,"abstract":"This paper presents a backstepping control implementation on magnetic suspension actuators to demonstrate a ball and beam system performance. A magnetic suspension actuator is located on side of the beam for up and down operation to control the ball position. Characteristics on the magnetic suspension actuator are studied from the design concept to construct a ball and beam system. The mathematical model of the system was derived via the Lagrangian function. The magnetic force as a function of position and coil current was measured and modeled by a quadratic function. A control law was developed following backstepping control procedures. To implement this ball and beam system, a linear feedback sensor and control circuit is designed and fabricated using a single chip microprocessor with basic electronic circuits as the control kernel. The ball and beam system is tested on both static and dynamic performance, especially in oscillatory stabilization and sinusoidal tracking.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129441196","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: 2
5-Axis Control Tool Path Generation Using Curved Surface Interpolation 基于曲面插值的五轴控制刀具轨迹生成
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-12-15 DOI: 10.1299/JSMEC.49.1209
Masatoshi Morikawa, T. Ishida, K. Teramoto, Y. Takeuchi
{"title":"5-Axis Control Tool Path Generation Using Curved Surface Interpolation","authors":"Masatoshi Morikawa, T. Ishida, K. Teramoto, Y. Takeuchi","doi":"10.1299/JSMEC.49.1209","DOIUrl":"https://doi.org/10.1299/JSMEC.49.1209","url":null,"abstract":"In 5-axis control machining, it is important to reduce the processing time of generating interference-free tool path between a tool and a workpiece. Thus, the paper describes a method to determine interference-free tool posture, based on not every cutting point but every path. The system generates a ruled surface between an offset curve from cutting points and a parametric curve on an interference surface. Rotation of the ruled surface by moving control points on it allows a boundary tool locus, which does not interfere with a workpiece. Tool postures corresponding to a cutting point curve are rapidly determined by appropriately selecting the curve within the area surrounded by two ruled surfaces. The effectiveness of the proposed method is demonstrated by making a cutting experiment of an impeller.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123022595","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: 11
Application of Neural Networks to MRAC for the Nonlinear Magnetic Levitation System 神经网络在非线性磁悬浮系统MRAC中的应用
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-12-15 DOI: 10.1299/JSMEC.49.1073
A. Trisanto, M. Yasser, A. Haggag, Jianming Lu, T. Yahagi
{"title":"Application of Neural Networks to MRAC for the Nonlinear Magnetic Levitation System","authors":"A. Trisanto, M. Yasser, A. Haggag, Jianming Lu, T. Yahagi","doi":"10.1299/JSMEC.49.1073","DOIUrl":"https://doi.org/10.1299/JSMEC.49.1073","url":null,"abstract":"This paper investigates the application of neural networks (NNs) to conventional model reference adaptive control (MRAC) for controlling the real plant of the nonlinear magnetic levitation system. In the conventional MRAC scheme, the controller is designed to realize the plant output convergence to the reference model output based on the assumption that the plant can be linearized. This scheme is effective for controlling a linear plant with unknown parameters in the ideal case. However, it may not be assured to succeed in controlling a nonlinear plant with unknown structures in the real case. We incorporate a neural network in the MRAC to overcome this problem. The control input is given by the sum of the output of the adaptive controller and the output of the NN. The NN is used to compensate for the nonlinearity of the plant that is not taken into consideration in the conventional MRAC. We developed an efficient method for calculating the sensitivity of the plant that is utilized in the NN to perform the backpropagation algorithm very efficiently. The plant of the magnetic levitation system has inherent strong nonlinearities due to the natural properties of the magnetic fields and uncertainties. Therefore, to confirm the effectiveness of our proposed controller, we implemented our proposed controller in real time on an experimental test bed of a magnetic levitation system. Finally, experimental results verified that the proposed control strategy has the advantages of tracking desired output perfectly and reducing the error.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115788838","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: 4
Consideration on Elastic Vibration Control of a Magnetically Levitated Thin Steel Plate Using Sliding Mode Control 基于滑模控制的磁悬浮薄钢板弹性振动控制研究
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-12-15 DOI: 10.1299/JSMEC.49.983
S. Hasegawa, Y. Oshinoya, K. Ishibashi
{"title":"Consideration on Elastic Vibration Control of a Magnetically Levitated Thin Steel Plate Using Sliding Mode Control","authors":"S. Hasegawa, Y. Oshinoya, K. Ishibashi","doi":"10.1299/JSMEC.49.983","DOIUrl":"https://doi.org/10.1299/JSMEC.49.983","url":null,"abstract":"We have proposed a magnetic levitation control system for a sheet steel and confirmed the realization by a digital control experiment. However, because of the strong nonlineality of the attractive force of the electromagnet and the various uncertainties in the circuit current such as changes in the resistance due to heat generation of the electromagnet, stability of levitation has not been sufficiently ensured. In this study, we aim to develop a noncontact support system for thin steel plates with high robustness using sliding mode control, which is tolerant to factors such as disturbances within control signals and external forces affecting the system. As a result, it was verified that the suppressive effect of the sliding mode control on disturbances is sufficient, and that the application of the continuous model provides the construction of a system with robustness to the disturbance of the external forces.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127002134","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: 14
Functional Based Adaptive and Fuzzy Sliding Controller for Non-Autonomous Active Suspension System 基于功能的非自主主动悬架系统自适应模糊滑动控制器
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-12-15 DOI: 10.1299/JSMEC.49.1027
Shiuh-Jer Huang, Hung-Yi Chen
{"title":"Functional Based Adaptive and Fuzzy Sliding Controller for Non-Autonomous Active Suspension System","authors":"Shiuh-Jer Huang, Hung-Yi Chen","doi":"10.1299/JSMEC.49.1027","DOIUrl":"https://doi.org/10.1299/JSMEC.49.1027","url":null,"abstract":"In this paper, an adaptive sliding controller is developed for controlling a vehicle active suspension system. The functional approximation technique is employed to substitute the unknown non-autonomous functions of the suspension system and release the model-based requirement of sliding mode control algorithm. In order to improve the control performance and reduce the implementation problem, a fuzzy strategy with online learning ability is added to compensate the functional approximation error. The update laws of the functional approximation coefficients and the fuzzy tuning parameters are derived from the Lyapunov theorem to guarantee the system stability. The proposed controller is implemented on a quarter-car hydraulic actuating active suspension system test-rig. The experimental results show that the proposed controller suppresses the oscillation amplitude of the suspension system effectively.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"2023 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123925448","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: 3
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