Geometric contact characteristics and sensitivity analysis of variable hyperbolic circular-arc-tooth-trace cylindrical gear with error theory consideredYongqiao WEI, Zeyu LI, Yongping LIU, Rui GUO, Dong YANG, Lan LUO and Zhongmin CHENJNWPU, 40 3 (2022) 679-689DOI: https://doi.org/10.1051/jnwpu/20224030679