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Maximizing Material Temperature Capability in Pressure Equipment Design: A Case Study of ISGEC Hitachi Zosen Limited
技术
- 传感器 - 环境传感器
- 传感器 - 扭矩传感器
适用行业
- 设备与机械
- 生命科学
用例
- 现场人员安全管理
- 结构健康监测
挑战
ISGEC Hitachi Zosen Limited 是一家领先的复杂压力容器和热交换器设备制造商，面临着利用材料的最高温度性能来设计石油和天然气领域结构部件的挑战。当前的 ASME 规范（第 VIII 节，第 2 部分）将疲劳曲线的生成限制为最高 371 °C。然而，制造商希望使用 ASME Code Case 2605，这是在高于 371 °C 且低于 454 °C 的温度下对 2.25Cr-1Mo-0.25V 钢进行疲劳评估的特殊规则。面临的挑战是使用实际的时间相关热和机械载荷直方图进行完全非弹性分析，例如棘轮弹性安定分析。使用类似电子表格的应用程序将塑性和蠕变视为应力和应变计算中的两种独立现象的现有方法容易出现人为错误，并可能导致不切实际的损伤参数。
关于客户
ISGEC Hitachi Zosen Limited 是市场领先的复杂压力容器和热交换器设备制造商。该公司为世界各地的客户提供服务，为其作为制造领导者的各个行业领域提供解决方案。 ISGEC Hitachi Zosen Limited 还协助降低从实验室到工厂的放大风险，体现了其对创新和客户满意度的承诺。该公司专注于利用材料的最高温度能力来设计石油和天然气领域的结构部件，这突显了其致力于经济高效的设计解决方案。
解决方案
ISGEC Hitachi Zosen 工程师在 ANSYS 技术团队成员的帮助下，使用 ANSYS MAPDL 中的用户可编程功能 (UPF) 来实现 Code Case 2605 蠕变模型。该模型旨在分析代码案例 2605 中指定的较高温度下的蠕变。通过将用户蠕变与 ANSYS 解决方案中已有的标准塑性材料模型相结合，他们能够计算在一定温度下的循环载荷条件下的总体蠕变应变和蠕变损伤高达 454°C。该解决方案不仅提高了计算的准确性，而且加速了计算过程。用于计算铬钼钢蠕变损伤和蠕变应变的蠕变子程序的实施消除了手动电子表格计算中常见的人为错误的可能性。
运营影响
数量效益
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