摘要
本交给出了对称应变花主应变贴片偏位误差的分析式．确证任意角度中间对称应变花贴片低位误差与贴片方位用无关，同时也与应变片相互间夹角无关；而贴片偏位误差仅与应变场主应变之比值及贴片方位不准确造成的与基线的偏差角有关．
This paper dedues analysis formulae of positional error of main strainof smpmetric straingage rosettes in sticking straingage. It has been proofed that the positional error of sytnmetric straingage rosettes inthe middle of arbitrary angle has nothingto do with azimuth of sticking straingage and mutual included angle of straingage. andthen the positional error only has something to do with ratio of main strain in the mainstrain field and positional error of datum line with inaccurate orientation in stickingstraingage.
关键词
应变花
偏位误差
贴片
实验应力分析
straingage rosettes
positional error
sticking straingage
