| 热轧辊瞬态温度场快速仿真模型 |
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| 引用本文： | 杨利坡,王东城,于丙强,王英睿. 热轧辊瞬态温度场快速仿真模型[J]. 塑性工程学报, 2010, 17(1). DOI: 10.3969/j.issn.1007-2012.2010.01.027 |
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| 作者姓名： | 杨利坡 王东城 于丙强 王英睿 |
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| 作者单位： | 1. 燕山大学,轧制设备及成套技术教育部工程研究中心,亚稳材料制备技术与科学国家重点实验室,秦皇岛,066004
2. 宝山钢铁股份有限公司,热轧厂,上海,200941 |
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| 基金项目： | 国家自然科学基金资助项目，河北省重大自然科学基金资助项目 |
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| 摘 要： | 利用等效温度法和变步长差分法建立了轧辊瞬态温度场快速仿真模型。综合考虑水冷、空冷、轧辊与轧件接触热传导等动边界条件,利用等效温度模拟轧辊表面的瞬态温度变化;对轧辊内部单元划分不等距网格,沿轧辊高向(从表层到中心)以及沿轧辊横向(从中部到两端),逐渐增加单元步长,提高模型的计算精度和计算速度;基于台劳展开式推导瞬态热传导方程的变步长差分式,模拟非稳态轧制及停轧空冷时的轧辊瞬态温度变化情况。工业实际数据验证了仿真模型的正确性和可行性,实验结果与仿真结果吻合较好,适合工程在线快速计算,预报精度在±5℃以内。
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| 关 键 词： | 轧辊 温度场 差分 变步长 等效温度 |
Research on the quick simulation model for the transient temperature field of the hot roll |
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| YANG Li-po,WANG Dong-cheng,YU Bing-qiang,WANG Ying-rui. Research on the quick simulation model for the transient temperature field of the hot roll[J]. Journal of Plasticity Engineering, 2010, 17(1). DOI: 10.3969/j.issn.1007-2012.2010.01.027 |
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| Authors: | YANG Li-po WANG Dong-cheng YU Bing-qiang WANG Ying-rui |
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| Affiliation: | YANG Li-po WANG Dong-cheng YU Bing-qiang(Yanshan University,Engineering Research Center of Rolling Equipment , Complete Techology of Ministry of Education State Key Laboratory of Metastable Materials Science , Technology,Qinhuangdao 066004 China)WANG Ying-rui(Heavy Plate Project Section,Baoshan Iron , Steel Co.Ltd.,Shanghai 200941 China) |
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| Abstract: | Used the equivalent thermal method and the variable-step difference method,the fast simulation model of roll transient temperature field was established.Some important dynamic boundary conditions,such as water cooling,air cooling,contact heat conduction between the roll and the plate and so on,were comprehensively considered,transient temperature change on the roll surface could be simulated by the equivalent temperature.Unequal distance grids were divided in the roll interior,for instance,along the height ... |
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| Keywords: | roll temperature field difference variable-step equivalent temperature |
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