Reliability-based robust design for kinematic accuracy of a mechanism with axiomatic theory

Qui, Jiwei; Zhang, Jianguo; Ma, Yupeng; Feng, Jiazhen; Wang, Pidong

doi:10.1177/0954410017714005

Cited by 3 publications

(2 citation statements)

References 27 publications

(35 reference statements)

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“…Position sensitivity and deviation of target nodes are also obtained. Qui 27 et al presented a robust design method for motion mechanism, aiming at actualizing a reliability-based robust design framework for mechanism motion. Li 28 et al analyzed reliability and sensitivity of the lock mechanism of the aircraft landing gear door.…”

Section: Introductionmentioning

confidence: 99%

Moment-independent sensitivity analysis of a fold mechanism based on an active learning kriging method

Hu,

Liu,

Guo

et al. 2024

Proceedings of the Institution of Mechanical Engineers, Part G:

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The present article shows the reliability and sensitivity of a missile folding rudder calculated by MSC.ADAMS and MATLAB. For folding rudder, mass of the counterweight, maximum of the motive force, preloading force, and stiffness coefficients of the spring 1 and spring 2 are considered when calculating the reliability. Two methods, active learning kriging (ALK) and Monte Carlo simulation (MCS), are introduced to calculate the reliability. The results obtained by ALK and MCS are compared to ensure the accuracy of the reliability. Three failure modes are considered respectively in reliability calculation, including the unfolding time exceeding the specified value, the max load of the lock structure 1 or lock structure 2 exceeding the specified value. Moment-independent sensitivity index is introduced to assess the importance rank of each factor. Both cases with and without gap are discussed to explore the influence of gaps between sleeve and shaft. Comparison of two cases show that gaps could reduce reliability of the folding rudder. The influence of gaps cannot be neglected during the reliability calculated, especially for mechanism with several motion joints like the rudder folding. The works aim to provide valuable guidance for design and optimization of unfolding rudder. In addition, it is a beneficial trial for introducing reliability theory in weapon equipment field.

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Section: Introductionmentioning

confidence: 99%

Moment-independent sensitivity analysis of a fold mechanism based on an active learning kriging method

Hu,

Liu,

Guo

et al. 2024

Proceedings of the Institution of Mechanical Engineers, Part G:

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“…Wang et al 30 presented a new approach to efficiently carry out dynamic reliability analysis for RRDO. Qui et al 31 proposed a reliability-based robust design approach on the basis of axiomatic theory, aiming at actualizing a reliability-based robust design framework for mechanism motion.…”

Section: Introductionmentioning

confidence: 99%

A reliability-based robust design for structural components with a variable cross section under limited probabilistic information

Zhang

2017

Advances in Mechanical Engineering

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In engineering design, structural components with variable cross sections are extensively employed due to their excellent mechanical properties. From a strength and stiffness perspective, structural components with a uniform cross section are not always ideal. Therefore, to effectively utilize material, variable cross section structural components with excellent properties such as high strength and stiffness are employed in many practical engineering applications. As a multi-dimensional function is required to describe the state of a variable cross section structural component, determining the locations of its dangerous cross sections is very difficult. As a result, the development of a reliability-based design for a variable cross section structural component is a complex process. Therefore, strict theoretical derivations and reasonable quantitative research are required to understand the variation pattern of the reliability of the variable cross section structural component with the coordinates to determine the locations of its dangerous cross sections. This article presents a reliability sensitivity analysis with limited probabilistic information and a reliability-based robust design variable cross section structural component. Mathematical models for reliability sensitivity analysis and reliability-based robust design of variable cross section structural components with incomplete probabilistic information are established. Reliability sensitivity analysis and reliability-based robust design methods for variable cross section structural components with non-normally distributed parameters are proposed. The article provides the changing condition of the reliability with respect to the variable cross section, describes the change rule of reliability with respect to design parameters, and provides the multi-objective optimal design model based on reliability sensitivity. The reliability index obtained using the presented method is insensitive and therefore robust. Using a numerical example, the variation curves of the reliability index and reliability of a variable cross section structural component with coordinates of variable cross section are obtained. A reliability-based robust optimal design approach for variable cross section structural components for given design reliability index conditions is provided.

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Dynamic response errors and accuracy reliability for mechanism with multiple lubrication clearance joints

2022

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Reliability-based robust design for kinematic accuracy of a mechanism with axiomatic theory

Cited by 3 publications

References 27 publications

Moment-independent sensitivity analysis of a fold mechanism based on an active learning kriging method

Moment-independent sensitivity analysis of a fold mechanism based on an active learning kriging method

A reliability-based robust design for structural components with a variable cross section under limited probabilistic information

Dynamic response errors and accuracy reliability for mechanism with multiple lubrication clearance joints

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