TY - GEN
T1 - Optimization of gait trajectory of bipedal walking on inclined plane with pitch and roll using genetic algorithm
AU - Yu, H. F.
AU - Fung, E. H. K.
AU - Jing, X. J.
PY - 2012/11
Y1 - 2012/11
N2 - This paper adopts Genetic Algorithm Optimized Fourier Series Formulation (GAOFSF) [1] to achieve stable walking on inclined plane with pitch and roll angle. The first section presents the physical configuration of bipedal robot. Also, kinematic model and inverse dynamic model are derived by Denavit-Hartenberg notation and iterative Newton-Euler dynamic algorithm respectively. Both of them consider the period of single support phase (SSP) only. Then, the formulae of the proposed trajectories which are represented by Truncated Fourier Series (TFS) are given. Moreover, the control objectives of genetic algorithm (GA) which are ZMP trajectories, strike velocity, desired step length and desired average trunk velocity are shown in the third section. Besides, the objective functions and constraints are clearly stated. In the final section, the performance of the proposed trajectories is analyzed based on the preset requirements. The optimized trajectory is found to be satisfactory since it can fulfill all the preset requirements. Copyright © 2012 by ASME.
AB - This paper adopts Genetic Algorithm Optimized Fourier Series Formulation (GAOFSF) [1] to achieve stable walking on inclined plane with pitch and roll angle. The first section presents the physical configuration of bipedal robot. Also, kinematic model and inverse dynamic model are derived by Denavit-Hartenberg notation and iterative Newton-Euler dynamic algorithm respectively. Both of them consider the period of single support phase (SSP) only. Then, the formulae of the proposed trajectories which are represented by Truncated Fourier Series (TFS) are given. Moreover, the control objectives of genetic algorithm (GA) which are ZMP trajectories, strike velocity, desired step length and desired average trunk velocity are shown in the third section. Besides, the objective functions and constraints are clearly stated. In the final section, the performance of the proposed trajectories is analyzed based on the preset requirements. The optimized trajectory is found to be satisfactory since it can fulfill all the preset requirements. Copyright © 2012 by ASME.
UR - https://www.scopus.com/pages/publications/84887281325
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84887281325&origin=recordpage
U2 - 10.1115/IMECE2012-85998
DO - 10.1115/IMECE2012-85998
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 978-0-7918-4520-2
VL - 4
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 239
EP - 247
BT - ASME 2012 International Mechanical Engineering Congress and Exposition
PB - American Society of Mechanical Engineers
T2 - ASME 2012 International Mechanical Engineering Congress and Exposition (IMECE 2012)
Y2 - 9 November 2012 through 15 November 2012
ER -