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International Standard Serial Number:
ISSN 1001-4551
Sponsor:
Zhejiang University;
Zhejiang Machinery and Electrical Group
Edited by:
Editorial of Journal of Mechanical & Electrical Engineering
Chief Editor:
ZHAO Qun
Vice Chief Editor:
TANG ren-zhong,
LUO Xiang-yang
Tel:
86-571-87041360,87239525
Fax:
86-571-87239571
Add:
No.9 Gaoguannong,Daxue Road,Hangzhou,China
P.C:
310009
E-mail:
meem_contribute@163.com
Abstract: Aiming at the national double carbon policy and the demand for lightweight axial piston motors with oblique axis, a lightweight design method of the piston motor housing was proposed, which took the housing of the piston motor as the research object,and was combined with dynamic characteristic analysis, strength analysis and topology optimization from the aspects of material and structure. Firstly, the AMESim was used to analyze the dynamic characteristics of the inclined-axis axial piston motor, and obtain the internal pressure load excitation of the inclined-axis axial piston motor as the boundary condition for the force analysis of the motor housing. Then, the aluminum alloy ZL205A was selected as the housing,the ABAQUS was used to analyze the strength of the lightweight material shell to verify the feasibility,and the TOSCA optimization module of ABAQUS was used to carry out a parameter-free topology optimization analysis of the shell. Finally, according to the optimal material distribution map of the optimization iteration, the model was structurally improved and verified by strength analysis. The research results show that the mass of the motor housing is reduced from 9.07 kg to 3.38 kg under the condition that the structural design requirements of the motor housing are met, which is 62.7% lower than that of the motor housing before optimization. By comparing the results before and after optimization, the feasibility of the scheme is verified, and the lightweight design of the oblique-axis axial piston motor is realized.
Key words: engineering vehicle; hydraulic motor drive; variable displacement piston pump; dynamic characteristic analysis; strength analysis; topology optimization; TOSCA optimization module
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