ABSTRACT
This research paper analyzed the seismic resistance performance of the solar heat storage barrel structure through seismic acceleration. The water storage barrel is placed on the M-type tripod, which must bear 500 kg of static water weight. Seismic analysis has two parts. Static analysis of the earthquake acceleration is 130gal (5 weak earthquakes), 225gal (5 strong earthquakes), 390gal (6 weak earthquakes) and 444 gals (6 strong earthquakes). The dynamic diachronic analysis was designed according to the seismic building codes to capture the triaxle acceleration of the Mino earthquake. Finally, the original structure is used to optimize the volume to achieve the new structural design.
This study mainly used Abaqus finite element analysis software for simulation. The bracketed material is stainless steel angle steel (SUS304) with a thickness of 1-3mm. The primary analysis is divided into the original structure and the topology structure. Without reducing the rigidity and strength of the system, reducing the cost of the design is achieved. The simulated seismic performance results revealed that the original structure could withstand 444 gals of seismic acceleration. The overall structure stress does not go beyond the material yield point designed for safety structure. Finally, this study also optimized the topology analysis to reduce the volume by 10%, and even with the same load and earthquake resistance. The research results show that the optimized topology structure has a weight reduction of 10%, a maximum stress drop of 16.8MPa and a maximum strain reduction of 0.513 compared with the original design. The dynamic diachronic analysis results show that the original structure's maximum stress is 285.4MPa, and the maximum pressure of the topological structure is 289.5MPa. Both designs can withstand the strength of the Mino earthquake (444 gals). We provide a reference for the improvement of the manufacturer's design and experimental verification through this research and analysis.
