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During an elevator emergency stop device operation, a large deceleration is generated at the elevator cage. Passengers in the elevator cage sometimes get injured, because they suffer impact force from the elevator emergency stop device. (Refer to [1] and [2].) Therefore, the authors focused on the passengers' safety in elevators and proposed an emergency stop device with a spring and a magnetic rheological...
This work deals with the modeling and simulation of the fretting hysteresis loop. Fretting represents a relative cyclic motion between two surfaces, having a non-uniform distribution of local relative displacement at their contact. Fretting damage is a complex contact phenomenon leading to crack initiation and/or material removal. The shape of the fretting hysteresis loop (loop-like variation of the...
This paper describes a novel design of robot arm and its experimental verification. The proposed robot arm has a bi-articular driving mechanism. The bi-articular driving mechanism drives both shoulder and elbow joints simultaneously like a bi-articular muscles of animals. The mechanism is built by timing belt and pulleys. The proposed robot arm mimics human upper arm with 3 DC motors working as three...
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