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Abstract: As to the complexity in structure and shape of work house
and roll system in cross wedge mills, the new method is developed to
calculate the rigidity of cross wedge mill, which is called the coupling
method of 3-D elastic contact boundary element method with multi-bodies
and finite element method. The new method can update the existing
deforming separation calculating theory and corresponding methods of
material mechanics, elastic mechanics and finite element method. It gets
over the disadvantage of not inclusion of roll system in the traditional
calculation of rigidity. It has stronger synthesis and fewer hypotheses
in contact-type calculating model. This new method owns high calculation
rate, high calculation accuracy, etc.
Key words: Mill rigidity Boundary element method Finite element
method
CLC No: TF08
国家自然科学基金青年基金(50205004)和国家自然科学基金(50035010)资助项目. Received 20031120,
received in revised form 20040531
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