A wrench-sensitive touch pad based on a parallel structure
Cita com:
hdl:2117/14081
Tipus de documentText en actes de congrés
Data publicació2008
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
Many different robotic in-parallel structures have been conceived as six-component force sensors. In general, they perform well for most applications but, when accuracy is a must, two main limitations arise. First, in most designs, the legs are connected to the base and the platform through ball-and-socket joints. Although the dry friction in each of these joints can be individually neglected, the integrated effect of twelve such elements becomes noticeable. Second, dynamical measurements might not be very accurate because the natural resonance frequency of the used structures is quite low even for relatively small dimensions. This dynamical response can be obviously modified with a proper mechanical design, but this increases the complexity of the sensor. This paper discusses the design and implementation of a touch pad based on a 6-axis force sensor and shows how the above limitations degrade its behavior. Moreover, it is shown how using a tensegrity structure both problems could be alleviated because ball-and-socket joints can be substituted by point contacts and the resonance frequency of the structure can be controlled by adjusting the static tensions of the tendons.
CitacióFrigola, R. [et al.]. A wrench-sensitive touch pad based on a parallel structure. A: IEEE International Conference on Robotics and Automation. "2008 IEEE International Conference on Robotics and Automation". Pasadena, California: 2008, p. 3449-3459.
Col·leccions
- Departament de Resistència de Materials i Estructures a l'Enginyeria - Ponències/Comunicacions de congressos [337]
- Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial - Ponències/Comunicacions de congressos [1.490]
- REMM - Recerca en Estructures i Mecànica de Materials - Ponències/Comunicacions de congressos [38]
- ROBiri - Grup de Percepció i Manipulació Robotitzada de l'IRI - Ponències/Comunicacions de congressos [249]
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
988-A-Wrench-Se ... n-a-Parallel-Structure.pdf | 1,126Mb | Visualitza/Obre |