Markus Grebenstein

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| this paper outlines the 2nd generation of multisensory hand design at DLR. The results of the use of DLR's Hand I were analyzed and enabled in addition to the big e orts made in grasping technology to design the next generation of dextrous robot hands. An open skeleton structure for better maintenance with semi shell housings and the new automatically(More)
Research on surgical robotics demands systems for evaluating scientific approaches. Such systems can be divided into dedicated and versatile systems. Dedicated systems are designed for a single surgical task or technique, whereas versatile systems are designed to be expandable and useful in multiple surgical applications. Versatile systems are often based(More)
In this article, we gave an overview on the DLR activities related to two approaches for the realization of soft robotics: actively torque-controlled LWRs and VSA. On the basis of our experience with torque-controlled robots, we presented an analysis on expected advantages and also disadvantages of VSA actuators. Furthermore, two VSA joint designs motivated(More)
Variable Impedance Actuators (VIA) have received increasing attention in recent years as many novel applications involving interactions with an unknown and dynamic environment including humans require actuators with dynamics that are not well-achieved by classical stiff actuators. This paper presents an overview of the different VIAs developed and proposes(More)
The paper describes recent design and development efforts in DLR's robotics lab towards a new generation of ultra-light weight robots with articulated hands. The design of fully sensorized joints with complete state feedback and the underlying mechanisms are outlined. The second light-weight arm generation is available now, as well as the second generation(More)
The DLR Hand Arm System is a highly dynamic and fully integrated mechatronic system which uses an anthropomorphic design. It exhibits impressive robustness by using a complete variable stiffness actuation paradigm. It aims at reaching the human archetype in most of its performances and its design. The methodology consists in understanding the human(More)
The impressive manipulation capabilities of the human hand are undoubtedly related to the thumb opposition. Such a versatility is highly desirable in the context of humanoid robots, in particular when performing object manipulation. Biomechanical data, surgery procedures and rehabilitation surveys represent an excellent base from which a robotic design can(More)
An anthropomorphic hand arm system using variable stiffness actuation has been developed at DLR. It is aimed to reach its human archetype regarding size, weight and performance. The main focus of our development is put on robustness, dynamic performance and dexterity. Therefore, a paradigm change from impedance controlled, but mechanically stiff joints to(More)
A novel approach to antagonism in robotic systems is introduced and investigated as the basis for an unequalled, highly anthropomorphic hand–arm system currently being developed. This hand–arm system, consisting of a 19-d.o.f. hand and a 7-d.o.f. flexible arm, will be based on antagonistic principles in order to study and mimic the human musculoskeletal(More)