Dynamic force analysis of a six-link planar mechanism Yertugan Umbetkulov, Yerlan Yeleukulov, Alfiya Atalykova, Gulbarshyn Smailova, Gulmira Iskakova, Algazy Zhauyt and Gulama-Garip Alisher Ibrayev MATEC Web Conf., 251 (2018) 04028 Published online: 14 December 2018 DOI: 10.1051/matecconf/201825104028