首页|碳纤维磁浮车体强度及无损检测技术研究

碳纤维磁浮车体强度及无损检测技术研究

扫码查看
碳纤维磁浮车体结构复杂,在服役过程中承受复杂载荷的作用,为评估碳纤维磁浮车体的强度特性,提出了碳纤维复合材料强度和超声相控阵无损测试方案.首先对车体进行了整车无损检测,检测车体在制造工艺和装配过程中产生的初始缺陷.然后对车体进行了强度试验,验证车体的结构强度是否满足设计要求,每个强度试验工况后对结构异响区域、应力异常区域和高应力区域进行了超声相控阵无损检测,确认试验过程中的车体状态.最后对车体再次进行了整车无损检测,确认车体完成强度试验后的车体状态.测试结果表明,碳纤维磁浮车体结构满足强度要求,无损检测结果满足评定准则要求.所提出的碳纤维复合材料强度及超声相控阵无损测试方法,可以有效满足碳纤维磁浮车体静强度测试.
Research on Strength and Nondestructive Testing Technology of Carbon Fiber Maglev Carbody
The carbon fiber maglev carbody has complex structurally that are subject to complex loads in service.In order to evaluate the strength characteristics of the carbon fiber maglev carbody,this paper proposes a carbon fiber composite strength and ultrasonic phased array nondestructive testing program.Firstly,the entire carbody is subjected to nondestructive testing to detect the initial defects generated in the manufacturing process and assembly process of the carbody.Then the strength test is conducted on the carbody to verify whether the structural strength of the carbody meets the design requirements,and ultrasonic phased array nondestructive testing is conducted on the abnormal structure area,the stress abnormal area and the high stress area after each strength test condition to confirm the status of the carbody during the test.Finally,the whole carbody is again subjected to nondestructive testing to confirm the carbody status after the strength test is completed.The test results show that the carbon fiber maglev carbody structure meets the strength requirements,and the nondestructive testing results meet the requirements of the evaluation guidelines.The proposed carbon fiber composite strength and ultrasonic phased array nondestructive testing method can effectively meet the static strength test of carbon fiber maglev carbody.

maglevcar carbodycarbon fiber compositecarbody strengthultrasonic phased arraynondestructive testing

刘鑫、黄金宝、蔡世超、康兴东

展开 >

中车青岛四方车辆研究所有限公司,山东青岛 266031

中车唐山机车车辆有限公司,河北唐山 063035

磁浮车体 碳纤维复合材料 车体强度 超声相控阵 无损检测

国家重点研发计划

2018YFB1201901

2024

铁道车辆
青岛四方车辆研究所有限公司

铁道车辆

影响因子:0.232
ISSN:1002-7602
年,卷(期):2024.62(2)
  • 10