Machining deformation analysis of aircraft monolithic components based on the energy method

Huang, Xiaoming; Liu, Xiaoliang; Li, Jiaxing; Chen, Yongbin; Wei, Dechen; Ding, Guichu

doi:10.1007/s00170-021-08531-z

Cited by 2 publications

(3 citation statements)

References 24 publications

(27 reference statements)

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“…The transition structure and final part have acceptable maximum relative errors of 24.6 % and 23.1 %, respectively, between theoretical calculation results and experimental results. Error generation is primarily caused by three factors (Ye et al, 2020;Weber et al, 2022;Huang et al, 2022): (1) the residual stress brought on by machining is not considered; (2) the effects of clamping and cutting load on machining distortion are not considered;…”

Section: Machining Testmentioning

confidence: 99%

“…Findings demonstrate that the proposed technique clearly reduces the maximum and average deformations of thin-walled structures. Huang et al (2022) used the equivalent bending strain energy theory to develop a mathematical model of machining distortion. The accuracy of the model and the relationship between the distortion and the initial stress state in the removed material are demonstrated by finite-element simulation and machining results.…”

Section: Introductionmentioning

confidence: 99%

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Machining distortion control of long beam parts based on optimal design of transition structure

Fan,

Han,

Zhang

2023

Mech. Sci.

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Abstract. In the machining of monolithic components, machining distortion is a severe issue. The presence of initial residual stress is a major contributor to machining distortion. This paper proposes an approach to control the machining distortion of long beam parts by optimizing the workpiece structure before the start of the finishing stage, i.e. the transition structure. The first step is to establish a machining distortion analytical model for long beam parts with an identical cross-section, which is based on reasonable assumptions such as material linear elasticity and ignoring the influence of cutting heat. Then, an optimization model for the cross-section of the transition structure is developed, with the objective function defined as the minimum difference between the predicted distortion of the final part and the transition structure. Finally, a U-shaped beam is designed, followed by numerical simulation and machining experiments for verification. The theoretical maximum distortion of the optimized transition structure and the final part are −0.174 and −0.1782 mm, respectively, with a relative error of 2.9 %. The results of machining experiments and finite-element simulation demonstrate the effectiveness of the proposed model.

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Section: Machining Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Machining distortion control of long beam parts based on optimal design of transition structure

Fan,

Han,

Zhang

2023

Mech. Sci.

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“…Therefore, assume that the structure is composed of a number of structural element units, the energy method is used to calculate the structural element deformation as [18]:…”

mentioning

confidence: 99%

Characterization Method of Damage Information Based on Heterogeneous Network

Huang

Gao

Liu

et al. 2023

Sensors

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Damage is the main form of conflict, and the characterization of damage information is an important component of conflict evaluation. In the existing research, damage mainly refers to the damage effect of a damage load on the target structure. However, in the actual conflict environment, damage is a complex process that includes the entire process from the initial introduction of the damage load to the target function. Therefore, in this paper, the transfer logic of the damage process is analyzed, and the damage process is sequentially divided into being discovered, being attacked, being hit, and being destroyed in succession. Specifically, first considering the multiple types of each process, the transmission of damage is likened to the flow of damage, a network model to characterize damage information based on heterogeneous network meta-path and network flow theory (HF-MCDI) is established. Then, the characteristics of damage information are analyzed based on the capacity of the damage network, the correlation of the damage path, and the importance of the damage node. In addition, HF-MCDI can not only represent the complete damage information and the transmission characteristics of the damage load but also the structural characteristics of the target. Finally, the feasibility and effectiveness of the established HF-MCDI method are fully demonstrated by the example analysis of the launch platform.

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Machining deformation analysis of aircraft monolithic components based on the energy method

Abstract: He received his PhD degree from Shandong University, China, in 2015. His research interests is machining of aircraft monolithic components.

Cited by 2 publications

References 24 publications

Machining distortion control of long beam parts based on optimal design of transition structure

Machining distortion control of long beam parts based on optimal design of transition structure

Characterization Method of Damage Information Based on Heterogeneous Network

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