Relevant bibliographies by topics / Robot manipulateur flexible

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Robot manipulateur flexible'

Author: Grafiati
Published: 4 June 2021
Last updated: 18 February 2022

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Journal articles on the topic "Robot manipulateur flexible"

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Mu, Hui Jin. "Study on Variable Structure Vibration Control for Flexible Manipulator." Advanced Materials Research 875-877 (February 2014): 1961–66. http://dx.doi.org/10.4028/www.scientific.net/amr.875-877.1961.

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In recent years, modeling and control of flexible space robots are extensively researched. Compared with traditional rigid robots, flexible robots have low energy consumption, wide operating space, high carrying capacity and other characteristics. However, due to its special structure, the robot arm will get deformation and vibration in motion, which brings a lot of problems to the positioning and tracking control of flexible space robots. Therefore, directing at the dynamics modeling and control issues of the free-floating flexible dual-arm space robots, this article carries out in-depth study. This paper first studies the elastic deformation and vibration of the flexible space manipulator and the robust control problem of the system trajectory tracking for free-floating flexible dual-arm space robots.
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Liu, Yue, Guo Hua Gao, Hao Wang, Ya Nan Qin, and Mei Juan Lian. "Innovative Design and Simulation of a Four-Wire Flexible Manipulator." Advanced Materials Research 971-973 (June 2014): 544–47. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.544.

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With the progress of science and technology, people's desire to improve the work efficiency became stronger and stronger. The demand for applied robots is sharply growing. Compared with the traditional rigid robot, the flexible mechanical structure has the advantages of compact and maneuverable. Thusly, this paper follows the direction of low-cost flexible structure, came up with a four-wire flexible manipulator and completed the prototyping research. This manipulator consists of flexible picking paw, flexible picking arm and control system three mainly parts, can be used in various fields.
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Fuchiwaki, Ohmi, and Hisayuki Aoyama. "Micromanipulation by Miniature Robots in a SEM Vacuum Chamber." Journal of Robotics and Mechatronics 14, no. 3 (June 20, 2002): 221–26. http://dx.doi.org/10.20965/jrm.2002.p0221.

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In this paper, we describe flexible micromanipulation organized by insect size robots in scanning electron microscopy. Small robots composed of piezo elements and electromagnets move in the SEM chamber with submicron resolution. They manipulate small objects in cooperation with each other. As a basic operation, one small robot, which has a sliding microtable transports samples at the SEM focus point precisely and this sliding table can be also positioned by the other small robot's manipulation. This two-robot cooperation provides x-y accurate positioning at any location within the chamber. On the sample table, a small robot with a micromanipulator handles small objects for picking up and putting down. The operator controls each robot easily with real-time monitoring of SEM images. This cooperation of small robots in SEM provides flexible, accurate microprocessing performance with low cost.
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Nakamura, Taro, Yuki Akamatsu, and Yuta Kusaka. "Development of Soft Manipulator with Variable Rheological Joints and Pneumatic Sensor for Collision with Environment." Journal of Robotics and Mechatronics 20, no. 4 (August 20, 2008): 634–40. http://dx.doi.org/10.20965/jrm.2008.p0634.

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Recently, as robots and humans have increasingly come to share common space, especially in the fields of medical and home automation, it has become necessary to consider the frequent physical collision of robots and environments (e.g. humans). However, many robot joints employ actuators with high-ratio gear trains, and therefore, when this type of robot comes into contact with a human, physical pain may be caused. This study deals with the development of a manipulator using a smart flexible joint employing ER fluid and a pneumatic cushion that has a sensor function. In addition, position control and collision experiments were performed with the developed manipulator. The experimental results demonstrate the effectiveness of the manipulator.
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Xiong, Gen Liang, Hai Chu Chen, Rui Hua Zhang, and Fa Yun Liang. "Control of Human-Robot Interaction Flexible Joint Lightweight Manipulator Based Joint Torque Sensors." Advanced Materials Research 403-408 (November 2011): 5022–29. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.5022.

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Recently, flexible joint lightweight robots are widely used in a variety of mobile robots or mechanical platforms, playing a more and more important role in the areas of space exploration, military reconnaissance, counter-terrorism, defusing, as well as home service. From the viewpoint of lightweight robot applications, there exist many different tasks under changing working conditions, either working in dangerous and unknown complex environment or closely contacting with human beings. Therefore, for a safe operation and high reliability, lightweight robots need not only high-precision position control but also compliance control, such that no injury on the robot and operated object will occur when interacting with the unknown environments. In order to make the manipulator contacts the environment compliantly, and reduces the instantaneous impact when collision occurs. This paper presented an interaction impedance control strategy for manipulator based on joint torque sensor, and combined with the trajectory regeneration with force feedback. Experiment was performed on a 5-DOF flexible joint lightweight manipulator. The experiment results of tapping on an egg showed the manipulator contacts the object compliantly and reduces collision impact, so the proposed approach was effectiveness and validity.
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Zhou, Xue Feng, Li Jiang, Chuan Wu Cai, and Hai Fei Zhu. "RMRS: A Reconfigurable Modular Robot System and its Applications." Advanced Materials Research 569 (September 2012): 466–71. http://dx.doi.org/10.4028/www.scientific.net/amr.569.466.

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Modules have been widely used in development of various robots including reconfigurable robots. To build robots flexibly and quickly with low costs, we have developed two basic joint modules and several functional modules including grippers, suckers and wheels/feet as end-effectors. In this paper, we introduce the development of these modules, and present several novel robots built using them. Specifically, we show how to use them to set up a manipulator, a 6-DoF biped walking robot, a wheeled mobile robot, a biped tree-climbing robot, and a biped wall-climbing robot. It has been shown that a few modules can easily spawn a variety of novel robots with modular methodology.
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Sekiguchi, Yuta, Yo Kobayashi, Yu Tomono, Hiroki Watanabe, Kazutaka Toyoda, Kozo Konishi, Morimasa Tomikawa, et al. "Development of a Tool Manipulator Driven by a Flexible Shaft for Single-Port Endoscopic Surgery." Journal of Robotics and Mechatronics 23, no. 6 (December 20, 2011): 1115–24. http://dx.doi.org/10.20965/jrm.2011.p1115.

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Recently, a robotic system was developed to assist in Single-Port Endoscopic Surgery (SPS). However, the existing system required a manual operation of vision and viewpoint, hindering the surgical task. We proposed a surgical endoscopic robot for SPS with a dynamic vision control, the endoscopic view being manipulated by a master controller. The prototype robot consists of a manipulator for vision control, and dual tool tissue manipulators (gripping: five DOFs; cautery: three DOFs) can be attached at the tip of the sheath manipulator. In particular, this paper focuses on the details of the mechanism and control scheme of the tool manipulator. The experimental results show that our manipulator exhibits a response with a precision of less than 0.15 mm and a time delay of less than 31 ms, when the input frequency is 1.0 Hz.
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Du, Yanfeng, and Cong Wang. "Dynamic Coupling and Control of Flexible Space Robots." International Journal of Structural Stability and Dynamics 20, no. 09 (August 2020): 2050103. http://dx.doi.org/10.1142/s0219455420501035.

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The dynamic modeling and coupling effect of a space robot are complex when the flexible manipulator and solar panels are considered. This paper investigates the dynamic coupling effect and control of a flexible space robot with flexible manipulators and flexible panels. The equations of motion are derived for the robot model both of the rigid-flexible type and flexible-flexible type. The flexible space robot dynamic model is verified by comparison with the results generated by the ADAMS software, for which good agreement has been obtained. The dynamic coupling matrix of the flexible space robot is derived based on the dynamic model. The effects of the central rigid body mass and the joints angle on the dynamic coupling are analyzed. A control method is proposed to manipulate the flexible space robot based on the system dynamic model. The multiple-impulse robust (MIR) input shaper is used to suppress the vibration of flexible structures in the proposed controller. Appropriate design parameter and frequency scaling factor are selected for the MIR input shaper to suppress the flexible vibration. The flexible space robot control is conducted to illustrate the effect of the proposed controller. It is shown that the proposed control method can realize the desired joints manipulation, while suppressing the vibration of the flexible manipulators and flexible panels.
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Subudhi, Bidyadhar, Subhakanta Ranasingh, and Ajaha Swain. "Evolutionary computation approaches to tip position controller design for a two-link flexible manipulator." Archives of Control Sciences 21, no. 3 (January 1, 2011): 269–85. http://dx.doi.org/10.2478/v10170-010-0043-2.

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Evolutionary computation approaches to tip position controller design for a two-link flexible manipulator Controlling multi-link flexible robots is very difficult compared rigid ones due to inter-link coupling, nonlinear dynamics, distributed link flexure and under-actuation. Hence, while designing controllers for such systems the controllers should be equipped with optimal gain parameters. Evolutionary Computing (EC) approaches such as Genetic Algorithm (GA), Bacteria Foraging Optimization (BFO) are popular in achieving global parameter optimizations. In this paper we exploit these EC techniques in achieving optimal PD controller for controlling the tip position of a two-link flexible robot. Performance analysis of the EC tuned PD controllers applied to a two-link flexible robot system has been discussed with number of simulation results.
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Kanarachos, A., M. Sfantsikopoulos, and P. Vionis. "A Splines–Based Control Method for Robot Manipulators." Robotica 7, no. 3 (July 1989): 213–21. http://dx.doi.org/10.1017/s026357470000607x.

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SUMMARYIn this paper, a new splines–based control method for robot manipulators is presented and discussed. The above method can be effectively used for path planning and control of rigid and flexible robots. The computational simplicity of the proposed algorithm, together with its flexibility and its high–level intelligence built in, can be considered as promising tools for achieving the goals of modem robot manipulator design.
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Dissertations / Theses on the topic "Robot manipulateur flexible"

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Solatges, Thomas. "Modélisation, conception et commande de robots manipulateurs flexibles. Application au lancement et à la récupération de drones à voilure fixe depuis un navire faisant route." Thesis, Toulouse, ISAE, 2018. http://www.theses.fr/2018ESAE0012/document.

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Les robots manipulateurs sont généralement des machines rigides, conçues pour que leurflexibilité ne perturbe pas leurs mouvements. En effet, des flexibilités mécaniques importantesdans la structure d’un système introduisent des degrés de liberté supplémentaires dont le comportementest complexe et difficile à maîtriser. Cependant, la réduction de la masse d’un systèmeest bénéfique du point de vue des coûts, de la performance énergétique, de la sécurité et des performancesdynamiques. Afin de faciliter l’accès aux nombreux avantages d’une structure légèremalgré la présence de fortes flexibilités, cette thèse porte sur la modélisation, la conception et lacommande de robots manipulateurs flexibles. Elle est motivée par le projet YAKA, dont l’applicationest le lancement et la récupération de drones à voilure fixe depuis un navire faisant route.Cette application nécessite une importante dynamique sur un vaste espace de travail, bien au-delàdes spécifications des robots rigides classiques. Les outils de modélisation, de conception et decommande proposés prennent en compte la flexibilité des segments et des articulations, pour unnombre quelconque de degrés de liberté et de segments flexibles. Le modèle dynamique flexibleest obtenu par le formalisme de Lagrange, les poutres flexibles sont représentées par le modèled’Euler-Bernoulli. Le schéma de commande proposé se décompose en une inversion de modèledynamique rigide et un bloc de précommande par Input Shaping adapté aux robots manipulateursflexibles. Les outils de conception proposés permettent de baser le processus de conceptionsur des performances prédites du système complet muni de ses actionneurs et de son contrôleuravec une simulation réaliste. Les validations expérimentales effectuées sur le robot YAKA permettentde valider la pertinence de la démarche suivie. Les résultats du projet YAKA confirment lafaisabilité de la mise en oeuvre d’un robot flexible de grande envergure et à forte dynamique dansun contexte industriel, en particulier pour le lancement et la récupération d’un drone à voilurefixe depuis un navire faisant route
Robot manipulators are generally stiff machines, designed in a way that flexibility does not affecttheir movements. Indeed, significant flexibility introduces additional degrees of freedom witha complex behavior. However, reducing the mass of a system allows for costs, performance, andsafety improvements. In order to allow those benefits despite important flexibility, this thesis focuseson modeling, design and control of flexible robot manipulators. It is motivated by the YAKAproject, which aims at developing a robot to launch and recover fixed wing UAVs from a movingship. It implies reaching very high dynamics on a large workspace, way beyond the specificationsof common rigid robots. The proposed tools for modeling, design and control allow for taking intoaccount both joint and link flexibility, for any number of degrees of freedom and flexible links.The elastodynamic model is obtained with Lagrange principle, each flexible link being representedwith one ormany Euler-Bernouilli beams. The proposed control scheme uses a nonlinear rigiddynamic inversion and extends classical Input Shaping techniques to flexible robot manipulators.The proposed design tools allow for performance prediction of the system including its actuatorsand controllers thanks to a realistic simulation. Experiments conducted with the YAKA robot validatedthe proposed approach. The results of the YAKA project confirmed the feasibility of usinga large scale, highly dynamic flexible robot in an industrial context, in particular for UAVs launchand recovery operations from amoving ship
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Wang, Ke. "Modélisation d'un robot manipulateur en vue de la commande robuste en force utilisé en soudage FSW." Thesis, Paris, ENSAM, 2016. http://www.theses.fr/2016ENAM0003/document.

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Le travail présenté dans cette thèse concerne la modélisation et la commande robuste en force de robots manipulateurs industriels à articulations flexibles utilisés pour le procédé FSW. Afin de réduire les temps de calcul et l'occupation de la mémoire, une approche basée sur la méthode par intervalle est proposée en vue de la simplification des modèles dynamiques des robots industriels, et contribue à identifier les paramètres d'inertie qui sont négligeables. Des études de cas sur trois types de trajectoires de test et l’analyse des couples moteurs ont démontré l'efficacité et les bonnes performances de la méthode de simplification. Ensuite, la modélisation dynamique et l'identification des paramètres du procédé FSW ont été effectuées. Les paramètres des modèles linéaires et non-linéaires de forces axiales sont identifiés. Sur la base de la modélisation du procédé FSW qui considère simultanément la cinématique du système complet, le modèle de déplacement du robot rigide, les flexibilités des articulations et le modèle dynamique de la force axiale, un contrôleur robuste en force est obtenu par la méthode de réglage fréquentielle. En outre, un simulateur du procédé FSW robotique est développé et les résultats de simulation montrent les bonnes performances du contrôleur en force. L'oscillation de la force axiale dans le procédé FSW peut être simulée en utilisant un modèle de perturbation de la position verticale de référence
The work presented in this thesis focuses on the modeling and robust force control of flexible joints industrial robot manipulators used for FSW process. In order to reduce computation time and memory occupation, a novel interval-based approach for dynamic model simplification of industrial robots is proposed, which applies to arbitrary trajectories of whole robot workspace and contributes to obtaining negligible inertia parameters. Cases studies have been carried out on three kinds of test trajectories and torques analysis of robot dynamic equation, demonstrating the effectiveness and good performance of the simplification method. Then, the dynamic modeling and identification of robotic FSW process is performed, and the parameters of linear and nonlinear dynamic axial force process models are identified by using the plunge depth and its derivative. On the basis of the modeling of robotic FSW process which simultaneously considers the complete kinematics, the rigid robot displacement model, the joint flexibility and the dynamic axial force process model, a robust force controller can be obtained by using the frequency response approach. Besides, a simulator of robotic FSW process is developed and simulation results show good performance of the force controller. The oscillation of axial force in FSW process can be simulated when a disturbance model of initial vertical reference position is proposed and used in the simulation
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Tsakalotos, Orestis I. "Active control of flexible structures and manipulators." Thesis, University of Newcastle Upon Tyne, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316255.

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Davies, J. B. C. "A flexible three dimensional motion generator." Thesis, Heriot-Watt University, 1996. http://hdl.handle.net/10399/1173.

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Shao, Zilong. "Identification et commande des robots manipulateurs à bas prix." Thesis, Ecole centrale de Lille, 2016. http://www.theses.fr/2016ECLI0001/document.

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Contrairement aux robots manipulateurs industriels qui sont de taille énorme et de prix élevé, beaucoup de robots manipulateurs à bas prix sont déjà entrés dans le marché, avec une petite taille, un poids léger, ce type de robots est plus accessible pour les particuliers. Cependant, limité par le coût de revient, des accessoires (matériaux, actuateurs, contrôleurs, etc) adoptés sont aussi limités, cela conduit souvent à la performance moins robuste au niveau de contrôle. Cette thèses se concentre sur la conception de contrôleur pour améliorer la performance des robots manipulateurs à bas prix. D'abord, pour des robots manipulateurs rigides, la modélisation dynamique en lien avec le système d'actualisation est établie, qui forme une équation différentielle avec paramètres constants et perturbation. Une méthode d'identification des paramètres en utilisant des observateurs et une commande adaptative sont proposées, et des résultats de simulation et d'expérimentation sont donnés. Ensuite, pour le cas d'articulation flexibles, pour simplifier, le modèle 1DOF est pris en compte. Premièrement, avec la mesure de la vitesse de lien, une méthode d'identification et une loi deux-étages adaptative sont proposées à condition que la position statique de lien puisse également être mesurée, des résultats de simulation sont donnés. Deuxièmement, en utilisant des mesures d'accélération de lien, une méthode d'identification et la même loi deux-étages adaptative sont proposées, cette idée est généralisée à l'identification et au contrôle de systèmes linéaires avec mesures de dérivées d'ordre élevé, des résultat de simulation sont présentés. Pour la mise en œuvre, des capteurs inertiels (gyroscopes et accéléromètres) sont utilisés et des résultats expérimentaux sont présentés
Unlike industrial robot manipulators which are huge in size and of high price, many low-cost robot manipulators have already entered the market, with small size and light weight, this type of robots are more accessible to the public. However, limited by the cost, the components adopted (materials, actuators, controllers, etc.) are also limited, this often leads to less robust control performance. This thesis focuses on the controller design to improve the performance for such kind low-cost robot manipulators. To start with, for rigid case, dynamic modeling considering the actuator system is established, which forms a differential equation with constant parameters and disturbance, a method to identify the model parameters using observers and then an adaptive controller are proposed, simulation and experimental results are given. Then, in case of flexible joints, for simplicity, a single-link case model is considered. Firstly, link velocity measurement is assumed to provide link information, and an identification method and a two-stage adaptive control low are proposed provided that the static link position can also be measured, simulation result is given. Secondly, by using link acceleration measurement, an identification method and the same two-stage adaptive control low areproposed, this idea is generalized to identification and control of linear system using high-order derivative measurements, simulation result is presented. For implementation, inertial sensors (gyro and accelerometer) are used and experimental result is presented
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Fraser, Anthony. "Perturbation techniques in the dynamics and control of flexible manipulators." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329872.

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Holden, Ray Lanier. "A braced end effector for a flexible robot manipulator." Thesis, Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/16736.

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Mackay, Andrew Stuart. "A flexible robot control system for subsea manipulator applications." Thesis, University of Liverpool, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260371.

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George, Lynnane E. "Active vibration control of a flexible base manipulator." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/17115.

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Halalchi, Houssem. "Commande linéaire à paramètres variants des robots manipulateurs flexibles." Phd thesis, Université de Strasbourg, 2012. http://tel.archives-ouvertes.fr/tel-00762367.

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Les robots flexibles sont de plus en plus utilisés dans les applications pratiques. Ces robots sont caractérisés par une conception mécanique légère, réduisant ainsi leur encombrement, leur consommation d'énergie et améliorant leur sécurité. Cependant, la présence de vibrations transitoires rend difficile un contrôle précis de la trajectoire de ces systèmes. Cette thèse est précisément consacrée à l'asservissement en position des manipulateurs flexibles dans les espaces articulaire et opérationnel. Des méthodes de commande avancées, basées sur des outils de la commande robuste et de l'optimisation convexe, ont été proposées. Ces méthodes font en particulier appel à la théorie des systèmes linéaires à paramètres variants (LPV) et aux inégalités matricielles linéaires (LMI). En comparaison avec des lois de commande non-linéaires disponibles dans la littérature, les lois de commande LPV proposées permettent de considérerdes contraintes de performance et de robustesse de manière simple et systématique. L'accent est porté dans notre travail sur la gestion appropriée de la dépendance paramétrique du modèle LPV, en particulier les dépendances polynomiale et rationnelle. Des simulations numériques effectuées dans des conditions réalistes, ont permis d'observer une meilleure robustesse de la commande LPV par rapport à la commande non-linéaire par inversion de modèle face aux bruits de mesure, aux excitations de haute fréquence et aux incertitudes de modèle.
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Books on the topic "Robot manipulateur flexible"

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Morris, A. S. Quadratic optimal control of a two-flexible-link robot manipulator. Sheffield: University, Dept. of Control Engineering, 1995.

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P. Th. L. M. van Woerkom. Equivalent flexibility modelling for the recursive simulation of robot manipulator dynamics. Amsterdam: National Aerospace Laboratory, 1989.

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Morris, A. S. Static and dynamic modelling of a two-flexible-link robot manipulator. Sheffield: University, Dept. of Control Engineering, 1995.

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Malachowski, M. J. Beam rider for an articulated robot manipulator (ARM): Accurate positioning of long flexible manipulators. [Cleveland, Ohio]: National Aeronautics and Space Administration, [Lewis Research Center, 1990.

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Morris, A. S. Multi-mode modelling of a flexible link robot manipulator by A.S. Morris and A. Madani. Sheffield: University, Dept. of Control Engineering, 1995.

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United States. National Aeronautics and Space Administration., ed. A vision-based end-point control for a two-link flexible manipulator: A thesis presented to the academic faculty. [Atlanta, Ga.]: Georgia Institute of Technology, School of Mechanical Engineering, 1991.

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United States. National Aeronautics and Space Administration., ed. A vision-based end-point control for a two-link flexible manipulator: A thesis presented to the academic faculty. [Atlanta, Ga.]: Georgia Institute of Technology, School of Mechanical Engineering, 1991.

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United States. National Aeronautics and Space Administration., ed. A vision-based end-point control for a two-link flexible manipulator: A thesis presented to the academic faculty. [Atlanta, Ga.]: Georgia Institute of Technology, School of Mechanical Engineering, 1991.

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Book chapters on the topic "Robot manipulateur flexible"

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Shaheed, M. H., Abul K. M. Azad, and M. O. Tokhi. "Intelligent Modelling of Flexible Manipulator Systems." In Climbing and Walking Robots, 607–14. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/3-540-26415-9_73.

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Kordasz, Marta, Rafał Madoński, Mateusz Przybyła, and Piotr Sauer. "Active Disturbance Rejection Control for a Flexible-Joint Manipulator." In Robot Motion and Control 2011, 247–56. London: Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2343-9_21.

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Boucetta, Rahma, and Mohamed Naceur Abdelkrim. "Neural Network Modeling of a Flexible Manipulator Robot." In Computer Information Systems and Industrial Management, 395–404. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-33260-9_34.

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Siddique, M. N. H., M. A. Hossain, and M. O. Tokhi. "BNN-based Fuzzy Logic Controller for Flexible-link Manipulator." In Climbing and Walking Robots, 575–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/3-540-26415-9_69.

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Boyer, F., N. Glandais, and W. Khalil. "Jacobian of a Flexible Manipulator Undergoing Large Elastic Displacements." In Advances in Robot Kinematics: Analysis and Control, 501–10. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-015-9064-8_51.

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di Castri, Carmelo, and Arcangelo Messina. "Modeling Effects on Free Vibration of a Two-Link Flexible Manipulator." In ROMANSY 18 Robot Design, Dynamics and Control, 99–107. Vienna: Springer Vienna, 2010. http://dx.doi.org/10.1007/978-3-7091-0277-0_11.

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Hossain, M. A., M. N. H. Siddique, M. O. Tokhi, and M. S. Alam. "Design Constraints in Implementing Real-time Algorithms for a Flexible Manipulator System." In Climbing and Walking Robots, 583–90. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/3-540-26415-9_70.

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Eberhard, Peter, and Fatemeh Ansarieshlaghi. "Nonlinear Position Control of a Very Flexible Parallel Robot Manipulator." In Multibody Dynamics 2019, 155–62. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-23132-3_19.

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Ansarieshlaghi, Fatemeh, and Peter Eberhard. "Adaptive Interaction Control of a Very Flexible Parallel Robot Manipulator." In Informatics in Control, Automation and Robotics, 133–50. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-63193-2_8.

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Tomori, Hiroki, Tomohiro Koyama, Hiromitsu Nishikata, Akinori Hayasaka, and Ikumi Suzuki. "Developing a Flexible Segment Unit for Redundant-DOF Manipulator Using Bending Type Pneumatic Artificial Muscle." In ROMANSY 23 - Robot Design, Dynamics and Control, 272–79. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58380-4_33.

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Conference papers on the topic "Robot manipulateur flexible"

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Yu, Yue-Qing, and Ji-Yun Yang. "Dynamics and Motion Control of Flexible Manipulators With Multi-Degree of Kinematic Redundancy." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84160.

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The dynamics and motion control of flexible robot manipulators is an advanced topic in the study of robotics. The precise tracking of the end-effector trajectory of flexible robots can be improved by the self-motion of redundant manipulators. The flexible manipulator with single-degree of kinematic redundancy has been considered only at present. This study addresses on the dynamics and motion control of flexible robots with multi-degree of kinematic redundancy. Compared with the robot with one-degree of redundancy, the optimal motion programming of a flexible robot manipulator with two-degree of redundancy has been obtained successfully based on pseudo-inverse solution. The numerical results of planar three-link and four-link flexible manipulators show the advantage of multi-degree of redundancy in improving the kinematic and dynamic performances of flexible robot manipulators.
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Giberti, Hermes, Simone Cinquemani, and Stefano Ambrosetti. "Improving Trajectory Tracking Performance of a 2 DOF Parallel Kinematic Manipulator With Flexible Links." In ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/esda2012-82546.

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Flexible-link robots are an important class of manipulators which uses lightweight arms for assembly, civil infrastructure, bridge/vehicle systems and large-scale space structures. The wide spread of these systems in various application areas has ensured that the modeling of flexible elements and the control of vibration have received a great deal of attention in recent years. In this work it is analyzed a two DOF parallel robot with two flexible links used for pick and place operations, developing a control strategy based on piezoelectric actuators and strain gauges or accelerometers embedded in the links. The analysis of the robot behaviour and the development of the controller, have been carried out on an electromechanical model built in Matlab® and co-simulated with the multibody flexible model built in Adams®. Results show positive confirmation of the study and encourage future tests on the real manipulator to validate the multibody model and the control strategy.
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Yu, Liangyao, Sheng Zheng, Jinghu Chang, and Xiaoxue Liu. "Pedal Actuator of Driver Robot Based on Flexible Manipulator." In ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/detc2017-68100.

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In most testing scenarios, driver robot can improve the testing accuracy and reduce the testing time when it replaces human driver. In this paper, an innovative pedal actuator of driver robot based on flexible manipulator is designed. This pedal actuator of driver robot can save the driver cabin space by changing the shape of manipulator according to different vehicle models, so that the human driver can sit in the cabin, together with the driver robot, monitor the testing process and take over the driver robot when necessary. The proposed pedal actuator of driver robot is composed of a flexible manipulator and end effector. The end effector which is respected to generate 500N pressure in maximum is based on ball screw pairs actuated by DC motor. The flexible manipulator is designed referring to 2-DOF universal joints. The designed prism shells around joint can improve rigidity of flexible manipulator under the condition of small size. Modular link design is used and every module has 2 degrees of freedoms. Its reaching range can be adjusted by increasing or decreasing the amount of modules. A three dimensional model has been constructed and the working principle of flexible manipulator is demonstrated in this paper. Simplified kinematics model of flexible manipulator is established, and the homogeneous coordinate transformation matrix and Denavit-Hartenberg convention are used to derive the kinematics equations. And the rotation angle of prism shell which is directly related to the servo motor angle is used to express the bending angle of the universal joint in the kinematics equations, so that it becomes straightforward and simple to solve the forward kinematics problem and control the manipulator.
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Qin, Jinna, François Léonard, and Gabriel Abba. "Non-Linear Observer-Based Control of Flexible-Joint Manipulators Used in Machine Processing." In ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/esda2012-82048.

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This paper proposes to use a non-linear observer to build the state and the external force of flexible manipulator robots during their machining (composite materials) processes or Friction Stir Welding (FSW) processes. These two different processes have a problem in common: the flexibility of the robot can not be neglected, that is to say, the errors due to the deformation of the links should be taken into account. However, in most industrial robots, the real positions and velocities of each link are not measured, so in this study, an observer is proposed to reconstruct the real angular positions and velocities of links by using the measured angular positions and the velocities of actuators. A simulation by Matlab/Simulink has been carried out with a 2 axis Robot during its machining processes: the proposed observer showed great performances in estimating the state of the robot (position and velocity). Then, in order to improve the tracking accuracy in the tool frame, the state of the external force along the forward direction (x) and its normal direction (y) are required, while they are also not measured by our robot. A disturbance observer has been added to reconstruct the processing force. A good precision during the proposed processes have been obtained using the latter. This study contributes to solve the problem from the point of view of accuracies during the machining processes.
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Karimzadeh, A., and G. R. Vossoughi. "Impedance Control of a Two Degree-of-Freedom Flexible Link Manipulator Using Singular Perturbation and Sliding Mode Control Theory." In ASME 7th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2004. http://dx.doi.org/10.1115/esda2004-58443.

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In this article, impedance control of a two link flexible link manipulators is addressed. The concept of impedance control of flexible link robots is rather new and is being addressed for the first time. Impedance Control provides a universal approach to the control of flexible robots — in both constrained and unconstrained maneuvers. The initial part of the paper concerns the use Hamilton’s principle to derive the mathematical equations governing the dynamics of joint angles, vibration of the flexible links and the constraining forces. The approximate elastic deformations are then derived by means of the Assumed-Mode-Method (AMM). Using the singular perturbation method, the dynamic of the manipulator is decomposed to the fast and the slow subsystems. The slow dynamic corresponds to the rigid manipulator and fast dynamic is due to vibrations of flexible links. The sliding mode control (SMC) theory has been used as the means to achieve the 2nd order target impedance for the slow dynamics. A controller based on state feedback is also designed to stabilize the fast dynamics. The composite controller is constructed by using the slow and fast controllers. Simulation results for a 2 DOF robot in which only the 2nd link is flexible confirm that the controller performs remarkably well under various simulation conditions.
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George, Lynnane E., and Wayne J. Book. "Inertial Vibration Damping Control for a Flexible Base Manipulator." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33533.

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A rigid (micro) robot mounted serially to the tip of a long, flexible (macro) manipulator is often used to increase reach capability, but flexibility in the macromanipulator can interfere with positioning accuracy. A rigid manipulator attached to a flexible but unactuated base was used to study a scheme to achieve positioning of the micromanipulator combined with enhanced vibration damping of the base. Inertial interaction forces and torques acting between the robot and its base were modeled and studied to determine how to use them to damp the vibration. One issue is that there are locations in the workspace where the rigid robot loses its ability to create interactions in one or more degrees of freedom. These “inertial singularities” are functions of the rigid robot’s joint variables. A performance index was developed to predict the ability of the rigid robot to damp vibration and will help ensure the robot is operating in joint space configurations favorable for inertial damping. When the performance index is used along with the appropriate choice of feedback gains, the inertia effects, or those directly due to accelerating the robot’s links, have the greatest influence on the interactions. By commanding the robot link’s accelerations out of phase with the base velocity, vibration energy will be removed from the system. This signal is then added to the rigid robot’s position control signal. Simulations of a rigid three degree of freedom anthropomorphic robot mounted on a flexible base were developed and show the effectiveness of the control scheme. In addition, experimental results demonstrating two degree of freedom vibration damping are included.
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Kövecses, J., R. G. Fenton, and W. L. Cleghorn. "The Dynamic Effects of Robotic Grasping Considering Flexible Joints." In ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0715.

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Abstract In this paper the dynamics of an important and frequently used robotic working process is investigated. The robot manipulator approaches, suddenly grasps and lifts a three dimensional object which is travelling on a conveyor. The spatial robot manipulator has two rigid links, rigid rotors and flexible joints. In order to model the joint flexibility, one-degree of freedom torsional springs have been used. The effects of continuous and discontinuous constraint equations are analysed. Simulation results are presented.
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Shigang, Yue. "Optimal Configurations for Flexible Redundant Robot Manipulators." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/mech-5996.

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Abstract The significant effect of initial configurations of flexible redundant robot manipulators is analyzed in the paper. It is found that the endpoint vibrations of a flexible redundant manipulator are quite different while performing the same endpoint trajectory starting from different initial configurations. Thus an optimal initial configuration with lower vibrations is found based on analysis before the manipulator starts to move. Only small and acceptable vibrations can be stimulated if the flexible redundant manipulator starts to move from the optimal configuration. Lots of computer time can be saved compared with optimal joint planning method. The method can be used in real-time control.
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Chen, Gang, and Zhaodan Kong. "Correct-by-Construction Approach for Self-Evolvable Robots." In ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/detc2017-68049.

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The paper presents a new formal way of modeling and designing reconfigurable robots, in which case the robots are allowed to reconfigure not only structurally but also functionally. We call such kind of robots “self-evolvable”, which have the potential to be more flexible to be used in a wider range of tasks, in a wider range of environments, and with a wider range of users. To accommodate such a concept, i.e., allowing a self-evovable robot to be configured and reconfigured, we present a series of formal constructs, e.g., structural reconfigurable grammar and functional reconfigurable grammar. Furthermore, we present a correct-by-construction strategy, which, given the description of a workspace, the formula specifying a task, and a set of available modules, is capable of constructing during the design phase a robot that is guaranteed to perform the task satisfactorily. We use a planar multi-link manipulator as an example throughout the paper to demonstrate the proposed modeling and designing procedures.
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Patel, Aditya, Rohan Neelgund, Archana Wathore, Jaywant P. Kolhe, M. M. Kuber, and S. E. Talole. "Robust Control of Flexible Joint Robot Manipulator." In 2006 IEEE International Conference on Industrial Technology. IEEE, 2006. http://dx.doi.org/10.1109/icit.2006.372236.

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