光学精密工程2012，Vol.20Issue(2)：337-343,7.DOI:10.3788/OPE.20122002.0337
单热源作用下滚珠丝杠的温度场建模与热误差预测
Temperature model of ball screw and its thermal error prediction under single heat
摘要
Abstract
To quickly and accurately predict the thermal error of a ball screw, this paper focuses on the modeling of temperature field of the screw. A theoretical temperature model is achieved based on the heat conduction equation of the screw and the modified boundary value conditions and a parameter a' which is changed with the temperature are used to improve the model. Then, a model parameter identification process is proposed. The thermal error of the screw is predicted by the model and mechanical thermal deformation theory. Finally, experiments are performed to identify parameters and check up the effect of the model. Result shows that the maximum error between the predicted and the actual temperatures is 0. 8 ℃ and the maximum error between the predicted and the actual thermal errors is 3. 8 μm. It concludes that the temperature model accurately predicts the temperature distribution and the thermal error of the screw under a single heat.关键词
滚珠丝杠/温度场/热误差/单热源Key words
ball screw/ temperature field/ thermal error/single heat分类
机械制造引用本文复制引用
李醒飞,董成军,陈诚,吴腾飞,谭文斌..单热源作用下滚珠丝杠的温度场建模与热误差预测[J].光学精密工程,2012,20(2):337-343,7.基金项目
国家自然科学基金资助项目(No.50975206) （No.50975206）
