A novel cylindrical profile measurement model and errors separation method applied to stepped shafts precision model engineering

Liu, Yongmeng; Mei, Yingjie; Sun, Chuanzhi; Li, Ruirui; Wang, Xiaoming; Wang, Hongye; Tan, Jiubin; Lü, Qing

doi:10.1016/j.measurement.2021.110486

Cited by 15 publications

(9 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The mutual position accuracy between the arm joint and root joint is detected by position detection device. The systematic errors in experiment are separated by a multi-systematic errors separation method proposed by Liu et al (2022). Photos of experiment are shown in Figure 8.…”

Section: Experimental Verificationmentioning

confidence: 99%

Research on assembly accuracy of deployable arm based on Jacobian-Torsor model

et al. 2023

RIA

View full text Add to dashboard Cite

Purpose The purpose of this study is to establish an assembly accuracy analysis model of deployable arms based on Jacobian–Torsor theory to improve the assembly accuracy. Spacecraft deployable arm is one of the core components of spacecraft. Reducing the errors in assembly process is the main method to improve the assembly accuracy of spacecraft deployable arms. Design/methodology/approach First, the influence of composite connecting rod, root joint and arm joint on assembly accuracy in the tandem assembly process is analyzed to propose the assembly accuracy analysis model. Second, a non-tandem assembly process of “two joints fixed-composite rod installed-flange gasket compensated” is proposed and analyzed to improve the assembly accuracy of deployable arms. Finally, the feasibility of non-tandem assembly process strategy is verified by assembly experiment. Findings The experiential results show that the assembly errors are reduced compared with the tandem assembly process. The errors on axes x, y and z directions decreased from 14.1009 mm, 14.2424 mm and 0.8414 mm to 0.922 mm, 0.671 mm and 0.2393 mm, respectively. The errors round axes x and y directions also decreased from 0.0050° and 0.0053° to 0.00292° and 0.00251°, respectively. Originality/value This paper presents an assembly accuracy analysis model of deployable arms and applies the model to calculate assembly errors in tandem assembly process. In addition, a non-tandem assembly process is proposed based on the model. The experimental results show that the non-tandem assembly process can improve the assembly accuracy of deployable arms.

show abstract

Section: Experimental Verificationmentioning

confidence: 99%

Research on assembly accuracy of deployable arm based on Jacobian-Torsor model

et al. 2023

RIA

View full text Add to dashboard Cite

show abstract

“…According to equation (12) of roundness, the center of the circle in the minimum area is the goal of solving the model. Therefore, PSO algorithm particles are designed as two-dimensional vectors, that is, X i (x i1 , y i1 ), and each particle represents the center position of a geometric circle.…”

Section: The Ipso Algorithmmentioning

confidence: 99%

“…Owing to structural constraints, most sections cannot be scanned continuously, and the measurement process is cumbersome and time-consuming. Aiming at the model engineering of large stepped shafts, Liu et al [10][11][12] designed a cylindrical contour measurement model with seven systematic errors to improve the surface contour measurement accuracy of large stepped shafts, which provides an accurate theoretical basis for the implementation of high-precision model engineering of cylindrical parts. However, its measurement method involved a contact measuring probe which in dynamic and high temperature rolling environments can be highly challenging.…”

Section: Introductionmentioning

confidence: 99%

Online measurement method for roundness of large aluminum alloy ring based on laser ranging principle

Zhang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part B:

View full text Add to dashboard Cite

Aluminum alloy rings are widely used in aerospace, energy, petrochemical, and equipment applications. The loss of roundness often occurs because of the weak rigidity and unstable plasticity of aluminum alloy rings. Therefore, an online measurement technique for the roundness of aluminum alloy rings is critical for ensuring the processing quality of aluminum alloy rings. In this paper, an online roundness measurement method based on the laser ranging principle and improved particle swarm optimization (IPSO) is proposed with the aid of the rotation of the ring during the rolling process. First, the distance from the outer surface of the ring to the laser rangefinder was measured using a triangular laser rangefinder with the help of the rotation of the ring in the rolling process. Second, the distance data were denoized using an improved Kalman filter algorithm to reduce the influence of random noise on the measurement results. Finally, the roundness and geometric center were evaluated using the IPSO algorithm combined with the minimum zone circle (MZC) method and compared with the results obtained using the standard particle swarm optimization (PSO) algorithm, genetic algorithm (GA), and least square (LS) algorithm. The experimental results show that the roundness measured by the IPSO algorithm is less than 0.06 mm, demonstrating better performance in the roundness evaluation. The measurement method for roundness proposed in this paper is suitable for the online evaluation of large aluminum alloy rings, avoiding the influence of ring size on roundness measurement.

show abstract

“…Mu et al 11 researched the manufacturing error of mating end face of circular feature in rotor systems. Liu et al 12 designed a cylindrical profile measurement model comprising seven systematic parameters of errors. These researches have improved the theoretical models of mechanical behavior of shaft-hole interference fit and provided solutions for stress-strain calculation and the part selection in various fit conditions.…”

Section: Introductionmentioning

confidence: 99%

Flexible assembly research for cylindrical interference fit with form error in shaft-hole structures

Hai-dong

Xia

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part B:

View full text Add to dashboard Cite

The interference fit has been widely used for torque transmission and assembly stability in the modern machinery industry. The form error of cylindrical feature is propagated during the interference fit of shaft-hole assembly, which causes the translation and rotation of following structures. Therefore, the overall precision variation is difficult to be predicted. In this paper, an error computational model of interference fit stage is proposed to represent the form error propagation of cylindrical features in the shaft-hole assembly. The characteristic parameter of form error is obtained by the minimum zone cylinder method and integrated into the small displacement torsor. The deformation behavior of interference fit with form error is described as a weakening propagation of error. An interference fit error propagation coefficient is introduced to quantify the phenomenon of weakening propagation of error, which depends on particular fit conditions such as materials, sizes, and interference range of parts. The error computational model for interference fit with form feature is deduced by using the Jacobian-Torsor theory. The characteristic of deformation flexibility in the interference fit is well considered comparing to the simple rigidity analysis in the traditional Jacobian-Torsor model. An error analysis of a shaft-hole structure deciding the symmetry and sensibility performance in the servo valve is conducted to verify the applicability. The cylindrical feature error and deformation during the interference fit are included. The results show that the new error model may represent characteristics of interference fit error propagation with form feature and has a higher reliability than the traditional error models.

show abstract

A novel cylindrical profile measurement model and errors separation method applied to stepped shafts precision model engineering

Cited by 15 publications

References 23 publications

Research on assembly accuracy of deployable arm based on Jacobian-Torsor model

Research on assembly accuracy of deployable arm based on Jacobian-Torsor model

Online measurement method for roundness of large aluminum alloy ring based on laser ranging principle

Flexible assembly research for cylindrical interference fit with form error in shaft-hole structures

Contact Info

Product

Resources

About