陈雪,李明哲,付文智,龚学鹏.多点成形冲头动态接触压力仿真分析[J].农业机械学报,2010,41(10):223-226.
.Simulation on Dynamic Contact Forces of Punches in Multi-point Forming Process[J].Transactions of the Chinese Society for Agricultural Machinery,2010,41(10):223-226.
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多点成形冲头动态接触压力仿真分析   [下载全文]
Simulation on Dynamic Contact Forces of Punches in Multi-point Forming Process   [Download Pdf][in English]
  
DOI:10.3969/j.issn.1000-1298.[year].[issue].[sequence]
中文关键词:  多点成形  冲头  接触压力  数值模拟
基金项目:
陈雪  李明哲  付文智  龚学鹏
吉林大学
中文摘要:采用弹塑性有限元法,建立多点模具复杂多接触面的力学模型,对不同材料、不同厚度和不同曲率半径的球形件多点对压成形过程进行数值模拟,分析了冲头最大接触压力的变化过程及其影响因素。结果表明:材料的弹性模量和屈服强度越大,成形件的板厚和变形量越大,所需的成形力就越大,所以冲头的接触压力就越大。
Key Words:
Abstract:A mechanics model of multi-point die that contained complicate multi-contact surfaces was built by elastic-plastic finite element method, different materials with different thickness and deformations of spherical surface parts were simulated during the forming process, the variation histories of maximal contact forces of punches and their correlative factor were analyzed. The results indicated that the contact forces of punches became larger and larger along with the increase forming forces, when the elastic modulus and yield strength of material were bigger, the thickness and deformations of parts were also bigger. 

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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