摘要
为保证大变形结构试验扣重的准确性,提出一种大变形结构强度试验扣重方法,设计一种滑轮组加载系统扣重装置,以实现试验状态及非试验期间结构重力的精准扣除。滑轮组由动滑轮和定滑轮组成,保证结构大变形下扣重装置始终保持水平状态,确保扣重载荷的力线方向;利用力控作动筒可有效克服滑轮组摩擦力的影响,确保大变形下扣重载荷施加的精准性。以某型飞机扰流板静强度试验为研究对象,采用所提的试验扣重方法完成试验。试验结果满足要求,验证了该扣重方法的可行性、有效性。
In order to ensure the accuracy of weight deduction for large-deformation structure tests, a heavy-deformation structure strength test deduction technology was proposed, and a pulley block loading system deduction device was designed, which could realize the precise deduction of the structural weight during the test state and during the non-test period. The pulley block was composed of a movable pulley and a fixed pulley to ensure that the deduction device always remains horizontal under large structural deformations, ensuring the direction of the force line of the deduction load;the force control actuator effectively overcomes the influence of the friction force of the pulley block to ensure deduction under large deformation. Taking the static strength test of a certain type of aircraft spoiler as the research object, in the test, a brand-new test deduction method was used, and the test was successfully completed. The test results meet the test requirements and the feasibility and effectiveness of the buckle method is verified.
作者
张柁
宋鹏飞
贺谦
任鹏
ZHANG Tuo;SONG Pengfei;HE Qian;REN Peng(Aviation Technology Key Laboratory of Full Scale Aircraft Structure Static and Fatigue Test,Aircraft Strength ResearchInstitute,Xi'an Shaanxi 710065,China)
出处
《机床与液压》
北大核心
2022年第22期58-62,共5页
Machine Tool & Hydraulics
基金
航空科学基金(2016ZD23017)。
关键词
强度试验
试验扣重
大变形
Strength test
Test deduction
Large deformation
