The behavior modeling technology is introduced. A gearbox cabinet model is analyzed and optimized in this paper with Pro/Engineer behavioral modeling tool, the geometry of gearbox cabinet model is generated and controlled through the intelligent approach of knowledge capture and iterative solution, the optimum design results are obtained, and multi-objective design of the cabinet model is also analyzed in this paper.
This paper, combining with actual machining situation of CNC milling , put forward system architecture based 3D（three-dimensional）visual virtual machining environment. Based on key technologies including geometric modeling ，behavioral modeling technology and NC code analysis of simulation system of three-dimensional virtual CNC milling，it developed simulation system of CNC milling that can realize the function of operation and programming.
The variants of the division of the life cycle of a construction object at the stages adopted in the territory of the Russian Federation, as well as in other countries are considered. Particular attention is paid to the exemplary work plan – "RIBA plan of work", used in England. A feature of this document is its applicability in the information modeling of construction projects (Building information Modeling – BIM). The article presents a structural and logical scheme of the life cycle of a building object and a list of works that are performed using information modeling technology at various stages of the life cycle of the building. The place of information models in the process of determining the service life of the building is shown. On the basis of the considered sources of information, promising directions for the development of the life cycle management system of the construction object (Life Cycle Management) and the development of the regulatory framework in order to improve the use of information modeling in construction are given.