| Summary: | 碩士 === 國立臺北科技大學 === 自動化科技研究所 === 103 === In this study, we focus on developing a CBCT simulator which can perform the CT and Tomosynthesis tasks. For the studied CBCT simulator, its controller is based on the BECKHOFF TwinCAT 3.0 with EtherCAT and one cable technology. Based on the demands of F Company, the deformation of the detector should be less than 1 degree. To achieve the structure strength requirement with the limit space, the cross roller guide way is used to support the platform with triple moving stages. To simulate the CAE analysis of the proposed CBCT simulator, the cross roller guide way (CRGW) is simplified to a theoretical model with five degree-of-freedom. To obtain the stiffness of the CRGW, the past literature assume that the horizontal stiffness is equal to the vertical one. However, the experimental results show that this assumption is not proper for actual situation. Based on the comparison between the theoretical model and the experimental result, we found that the actual horizontal spring-damper stiffness is 1.35 times of the vertical one. Afterward, this result is applied to the CAE analysis to obtain the actual simulation of the whole simulator.
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