Time Domain Hybrid Algorithm for the Coupling Analysis of Harness Cable with Bent and Stereoscopic Configurations

YE Zhihong; LU Changchang; ZHANG Yu

doi:10.11999/JEIT221320

Volume 45 Issue 12

Dec. 2023

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Article Navigation > Journal of Electronics & Information Technology > 2023 > 45(12): 4345-4351

YE Zhihong, LU Changchang, ZHANG Yu. Time Domain Hybrid Algorithm for the Coupling Analysis of Harness Cable with Bent and Stereoscopic Configurations[J]. Journal of Electronics & Information Technology, 2023, 45(12): 4345-4351. doi: 10.11999/JEIT221320

Citation:

YE Zhihong, LU Changchang, ZHANG Yu. Time Domain Hybrid Algorithm for the Coupling Analysis of Harness Cable with Bent and Stereoscopic Configurations[J]. Journal of Electronics & Information Technology, 2023, 45(12): 4345-4351. doi: 10.11999/JEIT221320

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Time Domain Hybrid Algorithm for the Coupling Analysis of Harness Cable with Bent and Stereoscopic Configurations

doi: 10.11999/JEIT221320

School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Funds: The Graduate Scientific Research Innovation Project of Chongqing (CYS21297)

Received Date: 2022-10-20
Rev Recd Date: 2023-03-13

Available Online: 2023-03-20

Publish Date: 2023-12-26

Abstract

Abstract

Restricted to the spatial layout of complex systems, the cables used in these systems are usually harness structures, and have bent and stereoscopic configurations. At present, efficient time-domain modeling and analysis methods for the coupling of harness cable with Bent and Stereoscopic Configurations (BSCs) are still rare. Therefore, an efficient time-domain hybrid method, consisting of the Finite Difference Time Domain (FDTD) method, Transmission Line (TL) equations, adaptive cable mesh technique, interpolation techniques and charge conservation law, is studied to achieve the fast and synchronous calculations of space electromagnetic field radiation and the coupling responses of harness cable with BSCs. Firstly, the structure of the harness cable with BSCs is decomposed into multiple independent sub harness cable according to the bending nodes. Then, the coupling model of each sub harness cable is constructed by the TL equations, in which the adaptive cable mesh technique and some interpolation techniques are employed to compute the distribution sources of the TL equations, and the FDTD is applied to solve the transient responses on the sub harness cable. Finally, the equivalent circuit model of the bending nodes are constructed by the charge conservation law, and the voltages at the nodes are solved and fed back to these sub harness cables to realize the interference signal transmission between these cables. To verify the accuracy and efficiency of the proposed method, two coupling problems of the harness cable with BSCs in the environments of free space and shielding enclosure are solved by this method, CST and Finite Difference Time Domain-Simulation Program with Integrated Circuit Emphasis (FDTD-SPICE) method, which are compared in the calculation precision and time consumption.

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References(18)

References

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