Kinematic trajectory accuracy reliability analysis for industrial robots considering intercorrelations among multi-point positioning errors

Zhang, Dequan; Shen, Shuoshuo; Wu, Jinhui; Wang, Fang; Han, Xu

doi:10.1016/j.ress.2022.108808

Cited by 33 publications

(4 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to improve the reliability of the algorithm, MATLAB simulation is used to verify the performance of relevant parameters, so as to verify the actual performance of the improved differential carry algorithm [29,30]. In the simulation test, the population (number of coordinate points) scale was set to M = 30, and the maximum number of iterations was set to N = 100, N = 300, and N = 600 respectively.…”

Section: Algorithm Tesementioning

confidence: 99%

Optimal Differential Control for Accurate Positioning of Medical Electronic Wristband

2024

Teh. vjesn.

View full text Add to dashboard Cite

In this paper, an improved differential evolution algorithm is proposed to improve the positioning accuracy of electronic wristband system. The wristband system is composed of STM32F103 microcontroller, Beidou positioning module, LORA communication module and so on. In the traditional differential evolution algorithm, premature convergence to local optimal will reduce the accuracy of the algorithm. To solve this problem, the method introduces the distance information between known and unknown points and between all unknown points in the fitness function and overall initialization. This reduces the premature convergence of the algorithm and improves the optimization ability of the algorithm. Experimental results using the CICDDoS2019 dataset show that the localization accuracy of the proposed algorithm is improved by 7.6% compared with traditional differential evolution. The method also has good stability. This provides an effective way to improve the positioning accuracy of the wristband, which can be used for applications such as patient monitoring.

show abstract

Section: Algorithm Tesementioning

confidence: 99%

Optimal Differential Control for Accurate Positioning of Medical Electronic Wristband

2024

Teh. vjesn.

View full text Add to dashboard Cite

show abstract

“…14,15 Zhang et al combined sparse grid technique, the saddlepoint approximation method and copula functions to determine the relationship between single-point three-coordinate orientation error and multi-point positioning accuracy on motion trajectory. 16 The above literature evaluates and analyzes the trajectory accuracy of the manipulator, but does not mention the impact of the selection of discrete feature points and measurement coordinate systems on the trajectory accuracy of the manipulator. Based on the approach of kinematic geometry, Wang et al proposes three types of invariant evaluation models for discrete error motion 17,18 ; The mechanism model of ball bar testing for a two-axis rotary table of 5-axis machining center is discussed by Wang, and eliminates the influence of the installation pose uncertainty on the measurement error.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on adaptive evaluation method of manipulator trajectory accuracy

Xiang,

Feng,

Zhou

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

In the evaluation of manipulator trajectory accuracy, the selection of measured reference points and equipment installation effects the evaluation results. Therefore, a geometric model of ruled surface is proposed to describe the error motion of the manipulator. The directrix error and spherical image error are defined as parameters to describe the range of error motion. The above mathematical model is optimized to obtain the minimal directrix error vector and the minimal spherical image error vector on the moving coordinate system, and these vectors are selected as the evaluation indicators, it is unique to evaluate the accuracy of manipulator trajectory, which can eliminate the impact of measured reference points and equipment installation. This approach has been verified on the LR7-710 manipulator, the minimal directrix error of the manipulator trajectory is 0.2673 mm, and the minimal spherical image error is [Formula: see text]. The feasibility of the method is verified by three contrast tests.

show abstract

“…Chen developed a practical method for evaluating the kinematic reliability of gear mechanisms over time using a sequential decoupling strategy and a saddle point approximation method [10]. Zhang et al proposed a new approach to assess the reliability of kinematic trajectory accuracy in industrial robots by combining the sparse mesh technique, saddle point approximation method, and copula function [11]. Huang et al proposed a reliability analysis method for localization accuracy based on differential kinematics and saddle point approximation for evaluating the effect of kinematic parameter uncertainty on robot motion [12].…”

Section: Introductionmentioning

confidence: 99%

Reliability Analysis and Optimization Method of a Mechanical System Based on the Response Surface Method and Sensitivity Analysis Method

Zhao,

Yue,

Zhao

et al. 2023

Actuators

View full text Add to dashboard Cite

Mechanical system reliability analysis constitutes a primary research focus in the field of engineering. This study aims to address the issue of complex mechanical systems with intricate mechanisms and nonlinear reliability equations that are challenging to solve. To this end, we present a reliability analysis and optimization methodology that merges the response surface and sensitivity analysis methods. A comprehensive formation of reliability assessment and optimization of complex mechanical systems is achieved by creating a response surface model to fit the complex state function and solving the reliability parameters, followed by an error sensitivity analysis to determine the mechanical system’s reliability adjustment strategy. Finally, these methods are applied to a cylindrical material transport device to preliminarily realize the reliability assessment and average reliability optimization goals. The study’s findings may offer a theoretical framework and research opportunities to evaluate and enhance the reliability of intricate mechanical systems.

show abstract

Kinematic trajectory accuracy reliability analysis for industrial robots considering intercorrelations among multi-point positioning errors

Cited by 33 publications

References 59 publications

Optimal Differential Control for Accurate Positioning of Medical Electronic Wristband

Optimal Differential Control for Accurate Positioning of Medical Electronic Wristband

Research on adaptive evaluation method of manipulator trajectory accuracy

Reliability Analysis and Optimization Method of a Mechanical System Based on the Response Surface Method and Sensitivity Analysis Method

Contact Info

Product

Resources

About