Abstract: An integrated pylon structure for a propulsion system is suitable for one end to be connected to an aircraft wing and the other end to be connected to an aircraft engine. The pylon structure includes a pylon box section (110) formed from an upper and a lower bean, a frame (100) and a side wall panel. The pylon structure has a thrust reverser hood connection structure, provided on the side wall and connected with a nacelle thrust reverser hood having a front fixed hood (301) and a rear movable hood (302). A guide rail allows the rear movable hood to slide and open relative to the pylon box section. The engine thrust reverser hood is directly connected to the side wall of the pylon box section and a guide rail on the side wall guides the opening of the thrust reverser hood.

Abstract: An integrated pylon structure for a propulsion system is suitable for one end to be connected to an aircraft wing and the other end to be connected to an aircraft engine. The pylon structure includes a pylon box section (110) formed from an upper and a lower bean, a frame (100) and a side wall panel. The pylon structure has a thrust reverser hood connection structure, provided on the side wall and connected with a nacelle thrust reverser hood having a front fixed hood (301) and a rear movable hood (302). A guide rail allows the rear movable hood to slide and open relative to the pylon box section. The engine thrust reverser hood is directly connected to the side wall of the pylon box section and a guide rail on the side wall guides the opening of the thrust reverser hood.

Abstract: A fastener model representation device in a fastener aid design system includes at least one fastener model with an information storage module that stores three-dimensional information of the fastener model. The information storage module stores related information of the fastener model such as a name, an identification number, weight, coordinates and materials of the fastener model, and can include at least one of installation standards, connected parts, amendment information, heat treatment, detail parameters and mechanical properties of the fastener model. The related information and the naming information are shared by the fasteners of the same class in a manner of a digital dictionary. The three-dimensional information is stored in a local storage area of the fastener model and may be directly accessed, thereby providing a user with various graphic representations and statistical information of the fastener model.