摘要
以盘式制动器为研究对象,基于PRO-E、HyperMesh等软件建立其有限元模型。通过求解计算,对盘式制动器的钳体、制动盘行了强度分析和模态分析。分析结果表明:钳体、制动盘等零部件满足强度设计要求;制动盘的8、9阶固有频率与钳体的4阶固有频率非常接近,易产生共振,引起制动器尖叫。针对制动器尖叫问题,对制动盘的厚度进行了优化分析。优化结果表明,适当的改变制动盘厚度,可避免制动盘与钳体发生共振,并且能够改变盘的振型大小,改善盘式制动器的稳定性。
The softwares of PRO-E and HyperMesh are used to establish the finite element model of a disc brake. Through calculation, the analysis of strength and modal of the caliper and the brake disc are carried out respective- ly. The analysis results show that both the caliper and the brake disc can meet the strength design requirements. In addition, the brake disc with the natural frequencies of 8th and 9th orders and the caliper with the natural frequen- cy of 4th order are very close. Therefore, there is resonance which causes brake scream. According to the brake squeal, the thickness of brake disc is optimized. The optimization results show that, when the thickness of brake disc is changed, resonance can be avoided and the mode of vibration and its size and eventually the stability of disc brake can be improved.
出处
《机械科学与技术》
CSCD
北大核心
2014年第4期583-587,共5页
Mechanical Science and Technology for Aerospace Engineering
关键词
盘式制动器
有限元分析
HYPERMESH
brakes
calculations
computer simulation
computer software
design
disc brake
finite element a- nalysis
finite element method
HyperMesh software
mesh generation
natural frequencies
optimiza- tion
resonance
strength design
