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Firstly, a traveling vibration model of the occupant-wheelchair system for wheelchair robots running on random roads was created. Secondly, the analytic formula of the occupant RMS (root mean square) acceleration was deduced. Moreover, the dynamic coefficient [Formula: see text] was proposed and its influence laws were revealed. Finally, the cushion system optimal damping ratio was calculated based on [Formula: see text]. The results show that the [Formula: see text] value is only determined by the parameters of the occupant-wheelchair system. The smaller the [Formula: see text] value is, the better the dynamic comfort is for wheelchair robots running on random roads. By minimizing [Formula: see text], the occupant-wheelchair system can achieve a statistically optimal dynamic comfort effect. <\/jats:p>","DOI":"10.1142\/s1793962318500447","type":"journal-article","created":{"date-parts":[[2018,6,21]],"date-time":"2018-06-21T03:28:39Z","timestamp":1529551719000},"page":"1850044","source":"Crossref","is-referenced-by-count":0,"title":["Modeling and analytic optimization of dynamic comfort for wheelchair robots undergoing random roads"],"prefix":"10.1142","volume":"09","author":[{"given":"Leilei","family":"Zhao","sequence":"first","affiliation":[{"name":"School of Automation, Beijing University of Posts and Telecommunications, Beijing, P. R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuewei","family":"Yu","sequence":"additional","affiliation":[{"name":"School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo, P. R. 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