Hello dear colleagues,
I am looking for a elastic actuator for a robotic arm. It should be able to contribute 1/3rd in lifting the arm with the motor as the motor contributes 2/3rd. It should also ensure safe landing of the arm instead of free fall and also during emergency situations like, if the motor's program is bugged and it actuates in the wrong direction then also the actuator should ensure safe landing. My intial ideas were a spring and damper syste, torsional spring alone but there are some restrictions with them so, please suggest something.
Hello Asad, I hope you did find a solution to your problem already, as you asked your question more than 1 month ago. If whenever you still need suggestions, I joined a little paper I wrote some weeks ago, as an homework for my university (I'm currently a second year master student in robotics). This paper aims to make a state-of-the-art of the different research and work published about snake-like robots and continuum manipulators, designed for different applications.
I don't know if it could help you, but you will find few references and examples of passiv and elastic actuation strategies (like the use of "smart materials") chosen when designing continuum manipulators for medical, industrial or military purposes.
Hope it could be useful, good luck in your project anyway and happy new year !
Arthur.
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