To investigate the wind uplift resistance and failure modes of rigidly supported clamp-fixed photovoltaic (PV) modules
considering the effect of module fixation spacing and frame height
this study conducted wind uplift resistance tests on PV modules with different parameter combinations. The entire loading process of the PV modules under simulated wind load was measured
including displacement and strain changes. The damage deformation characteristics and failure modes of the PV module were analyzed. A numerical analysis model of the PV module was established using the structural finite element analysis software ABAQUS to further study the factors affecting the wind uplift resistance of the PV modules. The results show that the wind uplift failure mode of the PV module is the failure of the engagement between the fixed block and the module frame
leading to the entire PV module being uplifted. The wind uplift failure criterion for the PV module is defined as failure occurring when the slippage between the clamps and the PV module exceeds 2/3 of the original constraint surface section length of the block on the module frame. Reducing the length and width of the PV module
and increasing the height and fixation spacing of the PV module
can effectively improve its wind uplift resistance
with reducing the module width having the most significant effect.
ABIOLA-OGEDENGBE A, HANGAN H, SIDDIQUI K.Experimental investigation of wind effects on a standalone photovoltaic(PV) module[J]. Renewable energy, 2015, 78: 657-665.
AGARWAL A, IRTAZA H, ZAMEEL A.Numerical study of lift and drag coefficients on a ground-mounted photo-voltaic solar panel[J]. Materials today: proceedings, 2017, 4(9): 9822-9827.
PAPARGYRI L, PAPANASTASIOU P, GEORGHIOU G E.Effect of materials and design on PV cracking under mechanical loading[J]. Renewable energy, 2022, 199: 433-444.
ZHANG J Y, LU B Q, ZHENG D F, et al.Experimental and numerical study on energy absorption performance of CFRP/aluminum hybrid square tubes under axial loading[J]. Thin-walled structures, 2020, 155: 106948.