TY - EJOU
AU - Qing, Dong
AU - Song, Qi
AU - Huang, Shuangyun
AU - Xu, Gening
TI - Research on Adaptive TSSA-HKRVM Model for Regression Prediction of Crane Load Spectrum
T2 - Computer Modeling in Engineering \& Sciences
PY - 2023
VL - 136
IS - 3
SN - 1526-1506
AB - For the randomness of crane working load leading to the decrease of load spectrum prediction accuracy with time,
an adaptive TSSA-HKRVM model for crane load spectrum regression prediction is proposed. The heterogeneous
kernel relevance vector machine model (HKRVM) with comprehensive expression ability is established using
the complementary advantages of various kernel functions. The combination strategy consisting of refraction
reverse learning, golden sine, and Cauchy mutation + logistic chaotic perturbation is introduced to form a
multi-strategy improved sparrow algorithm (TSSA), thus optimizing the relevant parameters of HKRVM. The
adaptive updating mechanism of the heterogeneous kernel RVM model under the multi-strategy improved sparrow
algorithm (TSSA-HKMRVM) is defined by the sliding window design theory. Based on the sample data of the
measured load spectrum, the trained adaptive TSSA-HKRVM model is employed to complete the prediction of the
crane equivalent load spectrum. Applying this method to QD20/10 t × 43 m × 12 m general bridge crane, the results
show that: compared with other prediction models, although the complexity of the adaptive TSSA-HKRVM model
is relatively high, the prediction accuracy of the load spectrum under long periods has been effectively improved,
and the completeness of the load information during the whole life cycle is relatively higher, with better applicability.
KW - Heterogeneous kernel function; RVM; TSSA; adaptive update mechanism; equivalent load spectrum
DO - 10.32604/cmes.2023.026552