Modeling, Measurement and Control P23
Modeling, Measurement and Control P23
... the command and control of a vector such as position or force is not enough to control the interaction between systems (dynamic networks). The controller must also be able to command and control ... on position control and requires position commands and measurements to close the feedback loop. Force measurements are needed to effect the target impedance behavior. Position/force control methods ... force trajectory is commanded and force measurements are required to realize feedback control. 2. Impedance control, 6 uses the different relationships between acting forces and manipulator position...
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Modeling, Measurement and Control P18
... integration of structure and control design appears in Skelton 1,2 and Grigoriadis et al. 3 Bendsoe and others 4-7 optimize structures by beginning with a solid brick and deleting finite elements ... axially loaded compression members and tendon members that easily allow the unification of structure and control functions. Sensing and actuating functions can sense or control the tension or the length ... m} and {ρρ ρρ 11 , t 1ij , for i = 1, 2, …, n, j = 1, 2, …, m, and i < n when j = 1}. This section discusses the relationship between the q variables and the string and rod vectors t αβγ and...
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Modeling, Measurement and Control P21
... problems, increased reliability and improved thermal capacity are achieved. On the other hand, brushless motors require more complex and expensive control systems. Sensors and switching circuitry are ... cheap, robust, and reliable, and at the same time offer good torque characteristics. However, control of such motors is rather complicated. Advanced vector controllers are expensive and do not guarantee ... 21.3.1 and 21.3.2. The problem of control is strongly influenced by the choice of actuators. For instance, DC motors, stepper motors, and hydraulic actuators require different hardware and software...
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Modeling, Measurement and Control P24
... self-organizing, and generalization. Usually, learn- ing and control in neurocontrollers are performed simultaneously, and learning continues as long as perturbations are present in the robot under control and/ or ... sensors and are sent to both the teacher and the trainable controller. During control of the robot by the teacher, the control signals and the state variables of the robot are sampled and stored ... planning and stereovision for task planning can be formulated as optimization problems, while on the other hand, sensor/motor control, voluntary movement control, and cerebellar model articulation control...
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Modeling, Measurement and Control P26
... The control station consists of a TV monitor, and a control panel withjoysticks and pushbutton commands. Bi-directional radio links allow simultaneous transmission of1. Commands from the control ... desired (commanded) one. In this case, the above equation becomes (26.34)where uR and uL are left- and right-wheel control inputs. From (Equations 26.22 and 26.23) weobtain: (26.35) and (26.36)FIGURE ... issues from the standpoint of both linear and nonlinear control theories. We explain the difference between controllability in the linear system theory and controllability of mobile robots, having...
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Tài liệu Modeling, Measurement and Control P31 doc
... Processes and Their Monitoring and Control 8.1 Assembly Processes8.2 Monitoring and Control of Resistance Welding Process8.3 Monitoring and Control of Arc Welding ProcessesReferences 9 Control ... Monitoring and Control 6.5 Other Process Phenomena6.6 Future Direction and EffortsAcknowledgments References 7 Forming Processes: Monitoring and Control 7.1 Introduction: Process and Control ... TexasMECHANICALSYSTEMSDESIGNHANDBOOKTHE Modeling, Measurement, and Control This book contains information obtained from authentic and highly regarded sources. Reprinted material is quoted withpermission, and sources...
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Tài liệu Modeling, Measurement and Control P28 docx
... interconnected set of links and powered joints that support or move a wrist, a handor an end effector.• Wrist: a set of joints between the arm and the hand that allows the hand to be oriented tothe ... high positioning accuracy for precise assembly, fast and vibration-free motion for short cycletimes, and advanced control for path precision and controlled compliance. Figure 28.11 shows theprinciple ... requirements and cost and timeconstraints. Suppliers can be selected on the basis of price and on their ability to offer integratedservices during workcell planning, implementation, and operation....
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Tài liệu Modeling, Measurement and Control P29 doc
... guidance and control (absolute motion control) • Sensorimotor primitives defined as encapsulations of perception and motion that form domaingeneral blocks for fast task strategies (reactive motion control) The ... meals, pharmaceuticals, and documents along normal corridors.Clear and simple user interfaces, robust robot navigation, and ability to open doors and operateelevators by remote control make it a ... 28.27 Centralized and decentralized data storage and retrieval for car-type identification and robotprogram selection. (From Leondes, C.T., Mechatronic Systems Techniques and Applications,...
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Tài liệu Modeling, Measurement and Control P30 pptx
... refueled by a robot (left) and atouch-screen terminal for inserting credit card, entering refilling order and printing (right). (From Leondes, C.T.,Mechatronic Systems Techniques and Applications, Vol. ... station, the robot moves into the initial position. It emerges from theopening in the refueling island and approaches the filler flap. The robot remains flexible whendocked on, in other words, it can ... islandis guaranteed at all times. Figure 28.33 depicts a refilling station in operation since September 1995at Fraunhofer IPA.For more than 3 years, the robot has shown its reliability and...
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Tài liệu Modeling, Measurement and Control P1 pptx
... sequence of operations and processplanning, control of the machines and monitoring of the processes (on/off line), automation,networking and communication systems, and quality control of the production ... costs and lead times in allengineering design stages, improved quality and accuracy, minimization of errors and their dupli-cation, more efficient analysis tool, and accurate control and monitoring ... manage, and control the operations of a manufacturingsystem: computer-aided manufacturing (CAM) (Bedworth, Handerson, and Wolfe, 1991). In CAM,computers are either used directly to control and...
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