摘要
针对拉杆转子动力学分析中所采用的传统弹簧–阻尼单元建立轮盘间结合面模型的不足,发展了一种基于虚拟各项同性材料的拉杆转子结合面动力学模型。考虑轮盘间结合面的影响,采用该方法对某模型拉杆转子在不同轮盘预紧压力条件下的固有振动特性进行分析,计算得到前4阶固有频率与试验值的误差均小于5%,模态振型与测试结果吻合良好。
In allusion to defect of traditional spring-damp element building wheel disc junction model in dynamics analysis on rod fastening rotor,a kind of dynamics model for junction surface of rod fastening rotor based on virtual isotropic material was built.Considering affect of wheel disc junction surface,this method was used for analyzing natural vibration characteristic of some rod fastening rotor under the condition of stretch pressure of different wheel discs.By means of calculating,error between the first four natural frequency and the experimental value was worked out which was less than5% and the modal vibration type was identical to the testing result.
出处
《广东电力》
2015年第7期1-5,共5页
Guangdong Electric Power
基金
南方电网公司科技项目(K-GD2013-0492)
关键词
拉杆转子
界面
虚拟材料
等效线性化
固有振动
rod fastening rotor
interface
virtual material
equivalent linear
natural vibration
