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An underactuated robotic finger is proposed and studied for capturing non-cooperative objects, featuring an underactuated rigid-mechanism that can brake residual motion of non-cooperative targets. The finger consists of three joints driven by two actuators, and a set of one-input-two-output planetary gears is introduced to realize force transmission by using the ring gear and the planetary carrier...
Different from the traditional using method of one-input-one-output in planetary gear reducer, a concept of one-input-two-output is proposed to drive an underactuated finger. A finger consisting of three degrees of freedom, is driven by two actuators. MP joint is driven by one actuator while PIP and DIP joints are driven by another actuator with power distribution by a planetary gear reducer. When...
Sip/1199Al composites for electronic packaging applications with high volume fraction of Si particles were fabricated by squeeze-casting technology. The microstructure observation showed that the composites were dense and Si particles distributed uniformly; The linear CTEs of Sip/1199 composites was between (8.1~12) times 10-6degC-1, and they were decreased with the increasing content of Si particles...
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