改进Halton序列在回转体检测采样点分布中的应用

The Application of Improved Halton Sequence in Sampling Points Distribution of Rotational Parts Inspection

随着国家经济的高速发展,在航空、航天、国防、造船、机械等领域对回转体零件的需求日益增加,零件产品的质量保证和质量检验作为生产制造环节中的重要环节,受到了广泛的重视。在回转体测量过程中,采样点的数量及分布直接决定了回转体的测量精度和结果。在Halton序列的基础上,利用Von Neumann-Kakutani变换和线性加扰的方法对Halton序列进行随机化和置乱化,获得了改进Halton序列模型。根据改进Halton序列来确定测量点的分布情况,并进行了相应的实验验证。实验结果表明,应用改进Halton序列进行测量点布置后的测量精度高于测量机自身软件的布点策略。

With the rapid development of the national economy,the increasing demand for rotational parts in the field of aviation,aerospace,defense,shipbuilding and so on,in the manufaeturing process,product quality assurance and quality inspection is playing an important role received wide attention.In the revolving part measuring process,the number and distribution of point sampling directly determines the precision of the measurement and the result of solid of revolution.On the basis of Halton sequence,using the Von Neumann-Kakutani transformation and linear scrambling method for randomized and scrambling,it obtains the improved Halton sequence.According to the improved Halton sequence,it determines the distribution of sample points,and the corresponding experiment were carried out.The experimental results show that the measurement precision of applying the improved Hahon sequence to determine measurement points distribution is higher than the measurement precision of applying the strategy of CMM software.