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Research on Seismic Evaluation Method of Dongfeng EQ2050 Command Vehicle
LI Shanna1,2
, ZHANG Yixue1,2, GAO Benxu
1,2
, CHENG Peiyan1,2
, ZHANG Ju1,2*
2026, 51(2):
64-68,117.
DOI: 10.16638/j.cnki.1671-7988.2026.002.011
Special vehicles impose significantly higher requirements for seismic resistance than
ordinary vehicles due to their special structures and harsh operating conditions. Current traditional
testing methods cannot meet the seismic assessment needs of special vehicles under extreme
temperature differences, complex road conditions and high-acceleration impact scenarios. This experiment adopts high-precision vibration testing technology (with a test frequency range of 1~
1 000 Hz and a spectral resolution of 1 024 lines), combines amplitude spectrum curve analysis and
simultaneous frequency sampling methods, accurately locates the key seismic resistance points of the
EQ2050 special vehicle, and verifies whether its impact-resistant design complies with the
equipment design national standard specified in Terms of Reliability, Maintainability and Supportability (GJB 451A-2005). The research focuses on three aspects of work: first, clarifying the key
seismic resistance points of special vehicles by combining the automobile production process and
field working condition investigation; second, completing the acceleration data collection of special
vehicles under multiple working conditions by adopting the optimized sampling and testing scheme
after installing shock absorbers; third, establishing a standardized process for seismic resistance
testing of special vehicles and forming a generalizable seismic assessment system based on
suspension acceleration data under different working conditions. The research results show that the
suspension system of the EQ2050 special vehicle meets the requirements of national standards, and
the established testing process can effectively improve the detection accuracy of vibration
characteristics of special vehicles, providing key technical support for the seismic design verification
of military and various special vehicles.
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