基于瞬态温升仿真的列车制动盘结构研究
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摘要
运用ANSYS建立高速列车制动盘有限元模型,基于移动热源法对不同结构参数制动盘进行温度场仿真,对比分析散热筋形状、直径、疏密和制动盘盘体厚度对制动盘温度场的影响规律。结果表明:制动过程中,制动盘温度呈现先快速上升后缓慢下降的趋势,最高温度位于制动盘表面摩擦接触区域;采用长方柱状散热筋相比圆柱状能降低制动盘最高温度5.3%;制动盘最高温度与散热筋直径呈接近线性关系,与盘体厚度呈近似抛物线关系;增加摩擦接触区域对应的散热筋数量可以降低制动盘最高温度。最后基于仿真结果进行回归分析,拟合出制动盘最高温度函数模型,为制动盘优化设计提供了依据。
It builds the finite element model of high-speed train brake disc in ANSYS. Based on the moving heat method,it analyzes the temperature field of the brake disc with different structure parameters. Comparing the influence of radiating rib shape,diameter,density,thickness of the brake disc,it show: the brake disc temperature is a fast rise and slow downward trend during braking process,with the highest temperature in the friction contact area of brake disc surface. The brake disc with rectangular ribs can reduce the maximum temperature by 5. 3% with that of cylindrical ribs,the diameter of the ribs is approximately linear with the maximum temperature of the brake disc,while the thickness of the disc is in a parabolic relation. Increasing the number of the radiating rib in the friction contact area can reduce the maximum temperature of the brake disc. Based on the simulation results,it proposes the regression analysis to fit the maximum temperature function model of the brake disc,provides a reference for the optimization design of the brake disc.
It builds the finite element model of high-speed train brake disc in ANSYS. Based on the moving heat method,it analyzes the temperature field of the brake disc with different structure parameters. Comparing the influence of radiating rib shape,diameter,density,thickness of the brake disc,it show: the brake disc temperature is a fast rise and slow downward trend during braking process,with the highest temperature in the friction contact area of brake disc surface. The brake disc with rectangular ribs can reduce the maximum temperature by 5. 3% with that of cylindrical ribs,the diameter of the ribs is approximately linear with the maximum temperature of the brake disc,while the thickness of the disc is in a parabolic relation. Increasing the number of the radiating rib in the friction contact area can reduce the maximum temperature of the brake disc. Based on the simulation results,it proposes the regression analysis to fit the maximum temperature function model of the brake disc,provides a reference for the optimization design of the brake disc.
引文
[1]BAO Jiusheng,LIU Jinge,YIN Yan,et al.Characterization and experiments on the friction catastrophe behaviors of brake material during emergency braking[J].Engineering Failure Analysis,2015,55(2):55-62.
[2]SHAHZAMANIAN M M,SAHARI B B,BAYAT M,et al.Finite element analysis of thermoelastic contact problem in functionally graded axisymmetric brake disks[J].Composite Structures,2010,92(7):1591-1602.
[3]JIANG L,JIANG Y L,LIANG Y U,et al.Thermal analysis for brake disks of Si C/6061 Al alloy co-continuous composite for CRH3 during emergency braking considering airflow cooling[J].Transactions of Nonferrous Metals Society of China,2012,22(11):2783-2791.
[4]张翔峻.基于运用环境的制动盘结构参数研究[D].上海:同济大学,2014.
[5]孙连伟.盘式制动器摩擦副热力场应力场耦合分析[J].机械设计与制造,2016(3):90-94.
[6]张建辉,张兵,闫先朝.基于移动热源的盘式制动器三维瞬态温度场仿真分析[J].湖北汽车工业学院学报,2015,29(1):17-21.
[7]赵海燕,张海泉,汤晓华,等.快速列车盘型制动热过程有限元分析[J].清华大学学报(自然科学版),2005,45(5):589-592.
[8]杨源.制动盘尺寸对盘面温度场及应力场的影响[D].大连:大连交通大学,2015.
[9]ALNAQI A A,BARTON D C,BROOKS P C.Reduced scale thermal characterization of automotive disc brake[J].Applied Thermal Engineering,2015,75(3):658-668.
[10]张明远,于金朋,张继旺,等.牵引变压器悬挂刚度采用响应面法的优化设计[J].噪声与振动控制,2015,35(1):127-131.
[11]SCHENDERA C.SPSS回归分析[M].北京:电子工业出版社,2015.
[2]SHAHZAMANIAN M M,SAHARI B B,BAYAT M,et al.Finite element analysis of thermoelastic contact problem in functionally graded axisymmetric brake disks[J].Composite Structures,2010,92(7):1591-1602.
[3]JIANG L,JIANG Y L,LIANG Y U,et al.Thermal analysis for brake disks of Si C/6061 Al alloy co-continuous composite for CRH3 during emergency braking considering airflow cooling[J].Transactions of Nonferrous Metals Society of China,2012,22(11):2783-2791.
[4]张翔峻.基于运用环境的制动盘结构参数研究[D].上海:同济大学,2014.
[5]孙连伟.盘式制动器摩擦副热力场应力场耦合分析[J].机械设计与制造,2016(3):90-94.
[6]张建辉,张兵,闫先朝.基于移动热源的盘式制动器三维瞬态温度场仿真分析[J].湖北汽车工业学院学报,2015,29(1):17-21.
[7]赵海燕,张海泉,汤晓华,等.快速列车盘型制动热过程有限元分析[J].清华大学学报(自然科学版),2005,45(5):589-592.
[8]杨源.制动盘尺寸对盘面温度场及应力场的影响[D].大连:大连交通大学,2015.
[9]ALNAQI A A,BARTON D C,BROOKS P C.Reduced scale thermal characterization of automotive disc brake[J].Applied Thermal Engineering,2015,75(3):658-668.
[10]张明远,于金朋,张继旺,等.牵引变压器悬挂刚度采用响应面法的优化设计[J].噪声与振动控制,2015,35(1):127-131.
[11]SCHENDERA C.SPSS回归分析[M].北京:电子工业出版社,2015.