基于多工况的重载压裂车车架静动态强度分析  

The Strength Analysis of Heavy Fracturing Truck under Multi-conditions

作　　者：肖柳胜 刘健 袁艳艳 马晓伟 吴汉川[2] 

机构地区：[1]中国石油大学,山东青岛266580 [2]江汉石油管理局第四机械厂,湖北荆州434000

出　　处：《西华大学学报（自然科学版）》2015年第2期64-68,共5页Journal of Xihua University:Natural Science Edition

基　　金：国家科技重大专项3000型成套压裂装备研制及应用示范工程资助项目(2011ZX05048-06HZ)

摘　　要：压裂车在道路行驶和压裂工况下承受较多的载荷类型,包括弯曲载荷、扭转载荷、纵向载荷和侧向载荷等。为真实计算压裂车多工况下的车架强度,建立车架有限元模型,分析其在满载弯曲、紧急制动、紧急转弯、满载扭转、大泵中压冲击、大泵高压冲击等6种工况下的载荷情况,并用有限元法求出载荷下车架上的应力云图和变形云图。根据分析结果可知:道路行驶中车架应力最大的是扭转工况,为275 MPa;压裂工况下车架应力最大的是大泵高压冲击工况,为307 MPa。此结果通过试验得到了验证,为压裂车车架结构强度的改进提供依据。When driven on road, fracturing truck bear more load types, such as bending load, torsional load, vertical and lateral loads, etc. In order to calculate the frame strength of fracturing truck in real condition, the truck frame finite element model is set up to analyze the stress in six kinds of load conditions such as full load bending, emergency braking, laterally jinking, full torsion load, pump shocking with middle pressure and high pressure. The finite element method is utilized to calculate the stress and deformation distribution. The results of analysis and experiments show that the largest driving stress is equal to 275 MPa and appears in torsion con- ditions, and the maximum fracturing stress is equal to 307 MPa and occurs in pump shocking condition with high pressure. It provides the basis to improve structural strength of fracturing truck.

关 键 词：压裂车 静动态 车架强度 数值仿真 多工况 

分 类 号：TE934[石油与天然气工程—石油机械设备]