摘要
平面度、垂直度误差是检验几何产品互换性的重要参考指标,对使用性能检测及产品品质的评价有着重大影响.最小二乘法虽然使用广泛,却只能适用于对测量精度需求度不高的应用场合.为使平面度、垂直度误差评定值精准度更高,依据新一代产品几何技术规范与验证为框架,采用最小区域法,建立平面度、垂直度误差评定数学模型.运用一种根据粒子早熟收敛程度进行自适应调整权重的PSO算法与fmincon函数混合寻优的方法实现对平面度、垂直度误差的优化与评定.通过测量箱体尺寸数据分析计算,对比文献数据结果进行验证,证明了该评定方法的有效性及评定结果精确性.
Flatness and verticality errors are important reference indicators for testing the interchangeability of geometric products,which have a significant impact on performance testing and product quality evaluation.Although the least squares method is widely used,it can only be applied to applications where the measurement accuracy is not required.In order to improve the accuracy of flatness and verticality error evaluation,a mathematical model for flatness and verticality error evaluation was established based on the framework of new generation product geometry specification and verification by using the minimum area method.In this paper,a mixed optimization method of PSO algorithm and fmincon function is used to optimize and evaluate the flatness and verticality errors according to the degree of premature convergence of particles.The validity and accuracy of the evaluation method are proved by analyzing and calculating the measurement box size data and comparing the results of literature data.
作者
许家赫
陈岳坪
XU Jiahe;CHEN Yueping(School of Mechanical and Traffic Engineering,Guangxi University of Science and Technology,Liuzhou 545006,China)
出处
《广西科技大学学报》
2019年第4期105-109,共5页
Journal of Guangxi University of Science and Technology
基金
国家自然科学基金项目（51565006,51765007）
广西自然科学基金项目（2016GXNSFAA380111,2018GXNSFAA050085)
2016年广西高校高水平创新团队及卓越学者计划资助项目（桂教人[2016]42号）
广西科技大学创新团队支持计划资助项目（科大科研发[2017]64号）资助
