Research On Design Method Of Hydraulic Manifold Blocks Based On Dynamic Flow Path Feature

Hydraulic manifold blocks (HMB) are the key components of the integratedhydraulic system, the design of which is the bottleneck for the design of integratedhydraulic system because of complexities of external layout of hydraulic valves andinternal connection of oil routes. In this thesis, the concept of dynamic flow pathfeature (DFPF) is proposed and hierarchical model is constructed, based on analysisof the characteristics of design and manufacturing of HMB. Topological optimizationof DFPF of HMB based on Genetic Algorithm is put forward further. Finally theprototype software of HMB design is developed and its feasibility is illustrated. Themain contents of the thesis are as follows:1. Design methodologies of HMB and feature technology are reviewed, based onwhich, the structures and main contents of the thesis are presented.2. To solve the problems of conventional historical parametrical feature modeltechnology, a novel feature modeling method– modeling of dynamic flow pathfeature (DFPF) is provided, and hierarchical model and object-oriented model arebuilt.3. Topological optimization method of flow path of HMB is systematically studied.The mathematical model of DFPF topological optimization is given, and theprocess of topological optimization based on generic algorithm is provided, sothat the connection plan of flow path can be automaticallyconstructed.4. The design tactic of connection plan of flow path is introduced, which is mainlyautomatically built, as well as edited by designer in the manner of human-computer interface. It is mixed into the design process of HMB.5. On basis of above theory and methodologies, the prototype software of HMBdesign based on DFPF is developed. And its feasibility is illustrated with anexample.