Evaluation of Back Pressure on Lateral Wall of Square Cross Section Snow Compression Pressure Vessel
Evaluation of Back Pressure on Lateral Wall of Square Cross Section Snow Compression Pressure Vessel
复制标题
方形断面雪压压力容器侧壁背压评估
DOI：
10.11395/jjsem.18.130
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Hiro-aki OKEGAWA
中科院分区：
文献类型：
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作者：
Minoru ISHIGURO;Hiroki HAYASHI;Yotsumi YOSHII;Tomoki TAJIRI;Shin-ichiro KANEKO;Hiro-aki OKEGAWA
使用 12 多点压力传感器评估方形截面压雪压力容器侧壁上的压雪过程中的背压。首先，使用实验和有限元分析的结果来评估防水测试条件下雪压缩压力容器的弹性变形，以确认有限元作为数字制造设计工具的完整性。结果证实，弹性变形有限元分析足以预测高压容器在使用过程中的变形。应变速率έ为4.00×10-3 s-1–1.70×10-2 s-1。进行压缩测试是为了评估背压分布，以获得重要数据以支持压力容器的安全使用。结果表明，在压缩过程中，背压仅发生在压力容器底部周围。轴向地层压力 pz= 3.0 MPa 时，最大背压为 pb= 3.6 MPa。此外，最大压力几乎达到了轴向地层压力的120%。
Evaluation of the back pressure on a lateral wall of square cross section snow compression pressure vessel during snow compression was performed using a 12 multipoint pressure sensor. First, results of experiments and FEM analyses were used to evaluate elastic deformation of snow compression pressure vessel under water proof test condition to confirm the FEM integrity as a digital manufacture design tool. Results confirmed that the elastic deformation FEM analysis is sufficient to predict high-pressure vessel deformation during service. The strain rate έ was 4.00× 10-3 s-1–1.70× 10-2 s-1. Compression tests were conducted to evaluate back pressure distributions for obtaining important data to support safe usage of the pressure vessel. Results show that the back pressure occurs only around the bottom of the pressure vessel during compression. The maximum back pressure was pb= 3.6 MPa at axial formation pressure pz= 3.0 MPa. Furthermore, the maximum pressure reached almost 120% of the axial formation pressure.