摘要
以低压铸造汽车轮毂为研究对象,对铸造充型过程数值模拟算法进行了研究改进。包括采用自适应压力迭代法提高了SOLA算法的迭代收敛速度;在计算中运用动态迭代搜索域减少了冗余的程序开销,提高了计算效率;采用精确算法与简化算法相结合的方法,在保证轮毂关键部位模拟精度的同时缩短了计算时间。
A study of optimization is made to the mold filling simulation on low pressure die casting for automobile wheel casting. A method named API short for Adaptive Pressure Iteration is adopted to accelerate the convergence of SOLA algorithm. A scheme of algorithm using dynamic search area for iteration is proposed to reduce redundant program expense and improve computing efficiency. A combination of accurate model and simplified model of filling simulation effectively speeds up the computing process under the condition of guaranteeing the simulating precision at key parts of wheel.
出处
《热加工工艺》
CSCD
北大核心
2005年第12期27-29,共3页
Hot Working Technology
关键词
低压铸造
汽车轮毂
充型模拟
low pressure die casting
automobile wheel casting
mold filling simulation
