RT Journal T1 Inverse Displacement Analysis of a Hyper-redundant Elephant’s Trunk Robot A1 Yongjie Zhao*, Lei Jin, Peng Zhang, Jianyuan Li PB Journal of Bionic Engineering FD 2018-03-10 YR 2018 JF Journal of Bionic Engineering JO Journal of Bionic Engineering VO 15 IS 2 SP 397 DO https://doi.org/10.1007/s42235-018-0030-z K1 inverse displacement analysis; hyper-redundant; bionic robot; elephant’s trunk robot; 3UPS-PRU parallel mechanism;backbone curve LK {http://jbe.jlu.edu.cn/EN/article/article_599.shtml}