The application of parametric modeling method of Pro/E in the modular dougong is researched,and the disassembly and assembly operation of the dougong is implemented through the collision detection by the coordinate me...The application of parametric modeling method of Pro/E in the modular dougong is researched,and the disassembly and assembly operation of the dougong is implemented through the collision detection by the coordinate method in VRML. Direct interaction of VRML scene at the Web is implemented by using Java Script to manipulate VRML Object DOM.展开更多
Tolerance analysis of a planetary reducer is conducted. By focusing the serially-arranged parts in the central line and setting an appropriate dimension as a “gap”, worst-case tolerance analysis method and statistic...Tolerance analysis of a planetary reducer is conducted. By focusing the serially-arranged parts in the central line and setting an appropriate dimension as a “gap”, worst-case tolerance analysis method and statistical （RSS） tolerance analysis are used, and then a tolerance-analyzing tool CE/TOL is introduced. The acceptable value range of the “gap” is from 1.5 mm to 3.5 mm. While worst-case analysis rejects the design, RSS accepts it by a more realistic result with the law of probability accounted. With the help of CE/TOL and CAD software Pro/E, all components＇ dimensions and tolerances are assigned and modified, and more detailed and more comprehensible results are gives out.展开更多
Three-link reducers are widely used in petrochemical, mining and other fields for their high transmission ratio, high capacity and high transmission efficiency. Tooth racks are the key components of a three-link gearr...Three-link reducers are widely used in petrochemical, mining and other fields for their high transmission ratio, high capacity and high transmission efficiency. Tooth racks are the key components of a three-link gearreducer. In this paper, in order to obtain the fairly accurate link board stress distribution, we use the PRO/E software to establish the 3D models, carry out theoretical analysis of the link board overall stress and analyze the stress of the tooth rack with ANSYS software.展开更多
文摘The application of parametric modeling method of Pro/E in the modular dougong is researched,and the disassembly and assembly operation of the dougong is implemented through the collision detection by the coordinate method in VRML. Direct interaction of VRML scene at the Web is implemented by using Java Script to manipulate VRML Object DOM.
文摘Tolerance analysis of a planetary reducer is conducted. By focusing the serially-arranged parts in the central line and setting an appropriate dimension as a “gap”, worst-case tolerance analysis method and statistical （RSS） tolerance analysis are used, and then a tolerance-analyzing tool CE/TOL is introduced. The acceptable value range of the “gap” is from 1.5 mm to 3.5 mm. While worst-case analysis rejects the design, RSS accepts it by a more realistic result with the law of probability accounted. With the help of CE/TOL and CAD software Pro/E, all components＇ dimensions and tolerances are assigned and modified, and more detailed and more comprehensible results are gives out.
文摘Three-link reducers are widely used in petrochemical, mining and other fields for their high transmission ratio, high capacity and high transmission efficiency. Tooth racks are the key components of a three-link gearreducer. In this paper, in order to obtain the fairly accurate link board stress distribution, we use the PRO/E software to establish the 3D models, carry out theoretical analysis of the link board overall stress and analyze the stress of the tooth rack with ANSYS software.
