In this paper we have investigated the possibility of using parallel manipulator architectures for leg design in legged walking robots as inspired from the leg human muscular system. Proposed kinematic designs are pre...
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In this paper we have investigated the possibility of using parallel manipulator architectures for leg design in legged walking robots as inspired from the leg human muscular system. Proposed kinematic designs are presented with their basic features and performance with the aim to identify a solution with cost-oriented user-friendly characteristics as a leg module for biped robots but also for multi-legged walking machines.
In this study, cable-based manipulators are proposed for application in rehabilitation therapies. Cable-based manipulators show good features that are very useful when the system has to interact with humans. In partic...
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In this study, cable-based manipulators are proposed for application in rehabilitation therapies. Cable-based manipulators show good features that are very useful when the system has to interact with humans. In particular, they can be used to aid motion or as monitoring/training systems in rehabilitation therapies. Modelling and simulation of both active and passive cable-based parallel manipulators are presented for an application to help older people, patients or disabled people in the sit-to-stand transfer and as a monitoring/training system. Experimental results are presented by using built prototypes.
In this paper design criteria for manipulators are discussed and formulated for a multi-objective optimization problem. Optimality aspects are identified as suitable for numerical computations in a kinematic design pr...
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Many robotic hands have few configurations to achieve versatile grasp modes or the proper grasp force wrench, which is necessary for stable grasp. In this paper, design considerations are reported for improving the gr...
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ISBN:
(纸本)9781424425020
Many robotic hands have few configurations to achieve versatile grasp modes or the proper grasp force wrench, which is necessary for stable grasp. In this paper, design considerations are reported for improving the grasping capabilities of a low-cost and easy-operation three-finger robotic hand. A special planetary gear mechanism has been designed to adjust the position and orientation of two fingers. This novel solution significantly improves the flexibility of a robotic hand in terms of sizes and shapes of objects which can be grasped. Furthermore, both pinching and enveloping grasp configurations can be achieved similarly to human hands. Simulations are performed in Adams environment to show effectiveness of the proposed mechanism design in terms of both kinematic and dynamic performance.
This paper presents the operation strategy for a hexapod walking machine that has been designed and built at LARM in Cassino with low-cost easy-operation features. Special care has been addressed in proposing an archi...
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In this paper a workspace analysis has been presented for serial RRP manipulators. The cross-section boundary curve of this kind of manipulators can be described by a 8-th order polynomial of radial and axial reaches ...
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ISBN:
(纸本)3901249850
In this paper a workspace analysis has been presented for serial RRP manipulators. The cross-section boundary curve of this kind of manipulators can be described by a 8-th order polynomial of radial and axial reaches in Cartesian Space. Special cases are studied in order to illustrate different designs of RRP manipulators and the effect of some design parameters on the position workspace. An analysis of an industrial RRP manipulator is presented as a case of study.
Stiffness can be considered of primary importance in order to guarantee the successful use of any robotic system for a given task. Therefore, this paper proposes procedures for carrying out both numerical and experime...
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Stiffness can be considered of primary importance in order to guarantee the successful use of any robotic system for a given task. Therefore, this paper proposes procedures for carrying out both numerical and experimental estimations of stiffness performance for multibody robotic systems. The numerical procedure is based on models with lumped parameters for deriving the Cartesian stiffness matrix. The experimental procedure for the evaluation stiffness performance is based on a new measuring system named as Milli-CATRASYS (Milli Cassino tracking system) and on a trilateration technique
This paper illustrates design and simulation results for a new low-cost humanoid robot that has been named as CALUMA (CAssino Low-cost hUMAnoid robot). A 3D-CAD model of CALUMA has been developed in order to check the...
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This paper illustrates design and simulation results for a new low-cost humanoid robot that has been named as CALUMA (CAssino Low-cost hUMAnoid robot). A 3D-CAD model of CALUMA has been developed in order to check the design feasibility, possible component interferences and kinematic behaviour. A dynamic simulation in ADAMS environment has been carried out for CALUMA walking movements. Preliminary results of dynamic simulation have shown a falling down of CALUMA. Successful simulations of the robot walking movement have been obtained after carrying out some enhancements in the design of CALUMA
In this paper a performance analysis is presented for a low-cost parallel manipulator with 4 driven cables. Kinematics, statics, and a method for monitoring and verifying positive cable tensions are presented. A proto...
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In this paper a performance analysis is presented for a low-cost parallel manipulator with 4 driven cables. Kinematics, statics, and a method for monitoring and verifying positive cable tensions are presented. A prototype has been built and tests have carried out to verify the feasibility of the system design and its operation. Experimental tests have been carried out for monitoring the cables' tension for a spatial application of the manipulator
In this paper, CaPaMan2bis (Cassino parallel manipulator version 2bis) has been analysed as trunk subsystem in CALUMA (Cassino low-cost humanoid) robot. Dynamic simulations have been developed for an operation of CaPa...
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In this paper, CaPaMan2bis (Cassino parallel manipulator version 2bis) has been analysed as trunk subsystem in CALUMA (Cassino low-cost humanoid) robot. Dynamic simulations have been developed for an operation of CaPaMan2bis as trunk module of CALUMA has been checked. Specifically, simulations for walking and grasping have been carried out to evaluate CALUMA performance. Simulations have given results that confirm the feasibility of the proposed design. The dynamic simulations have been also used for studying the movement characteristics of CaPaMan2bis parallel manipulator in a humanoid robot structure. Improvements have been illustrated for the trunk sub-system as suggested by simulation results
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