钻探用泥浆泵曲轴的模态分析 - 煤田地质与勘探.pdf

第38 卷 第3 期 煤田地质与勘探 Vol. 38 No.3 2010 年6 月 COAL GEOLOGY EXPLORATION Jun. 2010 文章编号: 1001-1986(2010)03-0073-03 钻探用泥浆泵曲轴的模态分析 1 1,3 1 2 白稳乐 ，姚宁平 ，杜小山 ，李 兵 (1. 煤炭科学研究总院西安研究院, 陕西 西安710054； 2. 西安交通大学机械制造系统工程国家重点实验室, 陕西 西安 710049; 3. 中国地质大学工程学院, 湖北 武汉 430074) : 利用有限元分析软件ANSYS 在泥浆泵设计阶段对曲轴进行动态特性分析，研究模拟曲轴实 际工况时的振动特性。设计了轴承刚度测试实验装置，用以模拟曲轴轴承支撑边界条件；建立了 弹簧组轴系有限元模型，提取了系统前 4 阶固有频率和振型，为钻探用泥浆泵曲轴的设计和优化 提供理论依据。 ：泥浆泵；曲轴；轴承刚度；ANSYS 软件；模态分析 ：P634 ：A DOI: 10.3969/j.issn.1001-1986.2010.03.017 Modal analysis for crankshaft of drilling mud pump 1 1,3 1 2 BAI Wenle , YAO Ningping , DU Xiaoshan , LI Bing (1. Xi an Branch, China Coal Research Institute, Xi an 710054, China; 2State Key Laboratory for Manufacturing System, Xi an Jiaotong University, Xi an 710049, China; 3. Engineering Faculty, China University of Geosciences, Wuhan 430074, China) Abstract: To study the vibration characteristics of mimic crankshaft in working mode,we used finite element analysis software ANSYS to analyze the dynamic characteristics of crankshaft in the design stage of the mud pump. In order to simulate the crankshaft bearing support boundary condition accurately, we designed an experimental device of the bearing stiffness. Then the spring shafting finite element model was built, and we got the first 4 natu- ral frequencies and mode shapes, which supplied theories for designation and optimization of the mud pump crankshaft in drilling. Key words: mud pump; crankshaf