... of coal bulk material and important factors, combined with Box Behnken design test, the improved dynamic model of scraper conveyor running resistance is established. A test bench of scraper conveyor running resistance is established to compare and analyze the running resistance calculated by the improved...

..., and provide the basis for operation and line maintenance. Design/methodology/approach The wheel wear test data of heavy-haul freight vehicles were analyzed. Then a heavy-haul freight vehicle dynamic model was established. The line parameters influencing wheel wear in heavy-haul freight vehicles were also...

... Publishing Limited 2022 Emerald Publishing Limited Licensed re-use rights only Rolling element Cageless bearing Skidding Discontinuous collision Dynamic model Yanling Zhao can be contacted at: ztgsci1118@163.com 02 12 2021 04 03 2022 26 04 2022 11 06 2022 19...

.... Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-02-2020-0059/ Jingfang Liu can be contacted at: jfliu@bjut.edu.cn Dynamic model Pressure distribution Aerostatic slider Oscillation Pressure variation...

...-z_aj Before building the dynamic model of bearing, some coordinate systems are defined as follows: Many researchers and engineers have reported that, with cage structure broken, the dynamic characteristics of the bearing would become more complex compared to that of the bearing...

... in the new dynamic model. Design/methodology/approach The new model is based on the second kind of Lagrange equation. In this model, the closed hydrostatic guideway is supported by 12 pads, and each oil pad is equivalent to a nonlinear spring-damper system. The equivalent spring coefficient and damper...