1979年2月，压力部件动态分析的解释性报告首次被列为WRC公告246。该报告于1981年更新为WRC公告269；最近，第三版于1985年作为WRC公告303发布。第三版报告对压力容器行业的五个重要技术领域进行了评估。它们是动态建模、压力系统破裂和保护、压力瞬变、地震分析和流体-结构相互作用。第四版是1985年发布的WRC公告303的主要修订版。它保留了关于压力瞬变、流体-结构相互作用和地震分析的三个部分。然而，为了使其成为最新版本，进行了重大修订。增加了一个关于动应力标准的新章节，以强调该技术的重要性。此外，还新增了一节关于动态约束的内容，主要涉及减震器，但也讨论了减震器的替代品，如限位装置和柔性钢板能量吸收器。 本第四版将作为未来压力部件动态分析小组委员会研究的指南。

The Interpretive Report on Dynamic Analysis of Pressure Components was first listed as WRC Bulletin 246 in February 1979. That report was updated as WRC Bulletin 269 in 1981; more recently, the third edition was issued as WRC Bulletin 303 in 1985. The third edition of the report presented an evaluation of five areas of technical importance to the Pressure Vessel Industry. They were dynamic modeling, pressure systems rupture and protection, pressure transients, seismic analysis and fluid-structure interaction.This fourth edition represents a major revision of WRC Bulletin 303 issued in 1985. It retains the three sections on pressure transients, fluid- structure interaction and seismic analysis. However, significant revisions were made to make them current. A new section has been included on Dynamic Stress Criteria to emphasize the importance of this technology. A new section has also been included on Dynamic Restraints that primarily addresses snubbers, but also discusses alternatives to snubbers such as limit stop devices and flexible steel plate energy absorbers.This fourth edition will be used as a guide for future subcommittee research on Dynamic Analysis of Pressure Components.