Answers are grounded in this paper and cite their sources.
This study demonstrates differing wind-induced vibration responses in flexible photovoltaic structures with single and double-layer cable systems, revealing crucial design implications.
Most existing aeroelastic wind tunnel tests on flexible photovoltaic (PV) support structures focus on single support forms, lacking comparisons of wind-induced vibration responses between different support types and multi-zone/multi-point refined analyses. This study employs a vision-based displacement analyzer and three-dimensional digital image correlation method to obtain high-accuracy flexible PV support structures 3D displacement responses. Investigated structures' wind-induced vibration response evolution laws and mechanisms of single-layer and double-layer cable systems. Results reveal that flexible PV structures exhibit larger displacements and higher-frequency vibrations under 180° wind direction than at 0°. Significant differences exist between the two systems: the single-layer system's response is dominated by vertical displacement across all wind speeds, while the double-layer system transitions from vertical-dominated to coupled vertical-horizontal control at high wind speeds (7.56 m/s). A proposed “axis system transformation for flexural-torsional deformation” mechanism explains this divergence: the single-layer system exhibits “small-lever-arm flexural-torsional” deformation governed by module cables, whereas the double-layer system develops “large-lever-arm flexural-torsional” deformation driven by bearing cables. These findings provide insights for wind-resistant design optimization of flexible PV supports.
No takes yet. Share an insight, caveat, or question.
Weng et al. (2025) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: