An Efficient Reliability-Based Method for Simulating Sheet Crown in CVC Mills
(Room 102A)
09 May 17
10:30 AM
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11:00 AM
Tracks:
Cold Mill Modeling
An efficient reliability-based method is introduced to predict strip thickness profile and contact force distributions in rolling mills with non-symmetric roll stack configurations. Application of the method is illustrated using continuously variable crown (CVC) roll shifting. The method contains a simplified, mixed finite element approach that accommodates the non-linear, anti-symmetric CVC contact conditions. Reliability analysis is illustrated using random variables that include strip dimensions, mechanical properties, and control actuator preset positions. The example study shows an interesting result, in that the probability of achieving the target strip profile varies between 68.3% and 99.7%, depending on the mill actuator preset positions.