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in order to analyze the guide beam output displacement of the right-angle flexure hinge symmetrical four-bar mechanism, a half beam model was established based on the special structural characteristics and deformation characteristics. The formula of guiding displace were derived using approximate beam deflection curve equation. The finite element analysis of the model was carried out by ANSYS, it analyzed the cause of the theoretical value and simulation value for different reasons.

The design of lifting device for a large-scale dynamic sculpture at tourist district was introduced. According to its own characteristics of lift device, the "back-to-back" style of rack and pinion for the lift system was designed. It was used the finite element analysis software to analyze the strength of the rack and pinion which is a key part of the lift device. According to the stress of dedendum for the pinion is too bad, it was proposed that increased the radius of the fillet for dedendum.