Abstract
Rubber Tire-mounted Gantry (RTG) crances are running on the runways, which are sloped in the transverse direction and waved caused by the bearing of the frequent heavy tire loads. RTG structure has a wide projection area against wind during travelling. The runway unevenness and wind load becomes a disturbance to divert the straight travelling trajectory. And the angular offset of tire supporting plane to the RTG body also becomes a significant factor to affect the straight travelling performance. Herein this paper, the modeling of runway surface and wind load are introduced, and the relation of straight travelling trajectory of RTG with affections of runway unevenness, wind load, and angular offset of tire are studied by analysis with FEM.
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