摘要
针对传统复合材料飞行器仪器支架稳定性测试方法存在精准度低的问题,提出了一种复合材料飞行器仪器支架稳定性智能测试方法。基于工作的安全程度及效率,计算出支架构件的最大等效应力,以获取支架失效的主要条件。采用蒙特·卡罗方法计算出不同工作环境下的载荷差异,根据"浴盆曲线"得出稳定性变化阶段,分析稳定性指标与实际数值间的关系,完成复合材料飞行器仪器支架稳定性智能测试方法设计。实验结果表明,所设计智能测试方法与原有方法相比,测试结果与实际更为接近,准确度远高于原有方法。
In view of the low accuracy of the traditional test method for the stability of composite aircraft instrument support,an intelligent test method for the stability of composite aircraft instrument support is presented.Based on the work safety degree and the working efficiency,the maximum equivalent stress of the bracket member is calculated,and the main conditions for the failure of the bracket are obtained.The Monte Carlo method is used to calculate the load difference under different working conditions.Aaccording to"the bathtub curve",the stability change phase is obtained,the relationship between stability index and the actual value is analyzed to complete the intelligent test of the stability of the composite aircraft instrument support.The experimental results show that,the test result of the intelligent test method designed is closer to the reality than the original method,and the accuracy is much higher than the original method.
作者
谢贺年
王俊玲
XIE Henian;WANG Junling(Xi'an Aeronautical Polytechnic Institute,Xi'an.710089,China;AVIC XI'AN Aircraft Industry(Group)Company LTD,Xi'an 710089,China)
出处
《自动化与仪器仪表》
2020年第6期116-119,共4页
Automation & Instrumentation
基金
基金大类基于SolidWords虚拟模型库在机械制图课程教学改革中的研究与实践(No.15Z14)。
关键词
复合材料
飞行器
稳定性
测试方法
composite materials
aircraft
stability
test method
