Computer Aided Design and Analyses of Gear Pump

Autor: Jia-You Lin, 林家有
Rok vydání: 2012
Druh dokumentu: 學位論文 ; thesis
Popis: 101
This thesis intends to perform the optimal analysis on helical gear pumps and fulfill their solid modeling parametrically and automatically using the computer aided design software, SolidWorks (SW). In this study, an optimization code is used to perform the optimal analysis of the gear pumps with their flow rate formulas. The design data together with tooth profile equations and the fine pump design recipe from optimization are served to parametrically and automatically to construct the component and assembly solid models using the automatic programming interface (API) of SW. Therefore, the object of excellent gear pump design and rapid solid model generation is attained. Firstly, an analytic flow rate formula is used to obtain the theoretical volume displacement of gear pumps. In addition, both the theoretic models of the pressurized and shear flow theories for the parallel plates are used to obtain the leakage and pressure of the carry over region in the pumps. Then, the optimal analysis basing on an optimization code of MOST is performed by combining the flow rate formulas and design constrains. Thus, the fine design recipe of the pump design behaving optimal flow displacement can be obtained. Next, the design data for the optimal pump designs are imported to SW for the CAD modeling using API function based on a C++ code. Accordingly, the solid models of the gear pumps can be automatically attained those include their helical gears, shafts, and pump housing. Besides, interface dialogs are offered to comfort the pump design parameter input to complete all design solid modeling and engineering drawings of parts, assembly of the pump by only a push of mouse button expectedly. Finally, the parameter analysis is performed. By assigning various deign parameters and constraints; the optimization analyses, solid models, and characterization of the gear pumps under variant design consideration are achieved.
Databáze: Networked Digital Library of Theses & Dissertations