Based-restraining interval extension improved truncation algorithm for response analysis of uncertain mechanical systems. Issue 6 (22nd February 2021)

• Record Type: Journal Article
• Authors: Yu, Xueguang; Liu, Xintian; Wang, Xu; Wang, Xiaolan
• Is Part Of: Engineering computations. Volume 38:Issue 6(2021)
• Page Start: 2833
• Page End: 2849
• Publication Date: 2021-02-22
• Subjects: Uncertainty analysis -- Interval extension -- Variable correlation -- Truncation algorithm; Computer-aided engineering -- Periodicals; Computer graphics -- Periodicals; 620.00285
• DOI: 10.1108/EC-08-2020-0440
• Languages: English
• ISSNs: 0264-4401

Abstract

Abstract : Purpose: This study aims to propose an improved affine interval truncation algorithm to restrain interval extension for interval function. Design/methodology/approach: To reduce the occurrence times of related variables in interval function, the processing method of interval operation sequence is proposed. Findings: The interval variable is evenly divided into several subintervals based on correlation analysis of interval variables. The interval function value is modified by the interval truncation method to restrain larger estimation of interval operation results. Originality/value: Through several uncertain displacement response engineering examples, the effectiveness and applicability of the proposed algorithm are verified by comparing with interval method and optimization algorithm.