Article citationsMore>>
Dai, D., Chen, D., Wang, S., Li, S., Mao, X., Zhang, B., et al. (2023) Compilation and Extrapolation of Load Spectrum of Tractor Ground Vibration Load Based on CEEMDAN-POT Model. Agriculture, 13, Article 125.
https://doi.org/10.3390/agriculture13010125
has been cited by the following article:
-
TITLE:
Non-Stationary Load Extrapolation over Long Horizons Based on a Frequency-Consistent Diffusion Model
AUTHORS:
Yu Bai, Fei Meng
KEYWORDS:
Diffusion Model, Load Extrapolation, Frequency-Consistency
JOURNAL NAME:
Open Journal of Applied Sciences,
Vol.16 No.4,
April
7,
2026
ABSTRACT: This study proposes a frequency-consistent diffusion model (FCDM) for long-horizon extrapolation of non-stationary bearing load signals. Condition tokens and spectral-consistency constraints are introduced to preserve spectral and fatigue-related characteristics during tenfold extrapolation. The generated signals are evaluated using PSD, band-energy proportion, Range-Mean distribution, and unit pseudo-damage. Compared with DDPM, FCDM better preserves dominant frequencies, harmonic structure, and band-energy allocation. The dominant frequency error is 1.02%, and the mean harmonic error is 0.52%. FCDM also shows smaller band-energy allocation errors across all frequency bands. In addition, it reproduces the bimodal clustering pattern in the Range-Mean distribution more accurately. The unit pseudo-damage is 1.0978 for FCDM and 1.1280 for DDPM. These results indicate that FCDM improves spectral fidelity and fatigue-related consistency in long-sequence load extrapolation.