ASME的案例2695
对于一些局部分析，GB150允许采用分析设计。那么在ASME中是否也有类似的规定呢？
ASME的案例2695允许使用VIII 2设计规则应用于VIII 1的压力容器，对于其具体如何执行，委员会给出了一些回答，我试着翻译一下。
Case 2695
Code Case to Allow Section VIII Division 2 Design Rules to be used for a Section VIII Division 1 Pressure Vessel
2695允许使用VIII 2设计规则应用于VIII 1的压力容器。
Inquiry: Under what conditions may the Design-By-Rule Requirements in Part 4 of Section VIII Division 2 be used to design components for a Section VIII Division 1 Pressure Vessel?
问题：什么情况下允许将VIII 2 part4的按规则设计的要求应用于 VIII 1压力容器部件的设计。
Reply: It is the opinion of the Committee that the Design-By-Rule Requirements in Part 4 of Section VIII Division 2 may be used to design components for a Section VIII Division 1 Pressure Vessel, provided the following conditions are met：
回答：委员会的意见是在以下的情形下，VIII 2 part4的按规则设计的要求可以应用于 VIII 1压力容器部件的设计。
a) The allowable design tensile stress shall be in accordance with UG-23 of Section VIII Division 1.
允许设计拉伸强度按照VIII 1的UG-23.（UG-23内容是最大许用应力值）
b) The weld joint efficiency shall be established in accordance with UW-11 and UW-12 of Section VIII Division 1.
焊接接头系数符合VIII 1的UW-11和UW-12（UW-11射线及超声波检测，UW-12为接头系数）
c) Material impact test exemptions shall be in accordance with the rules of Section VIII Division 1.
材料冲击试验豁免按照VIII 1的规则。（冲击试验豁免参照VIII 1 UG-20（f））
d) If the thickness of a shell section or formed head is determined using Section VIII Division 2 design rules, then;
如果壳体或者成型封头的厚度采用VIII 2设计规则，则：
1) For design of nozzles, any nozzle and its reinforcement attached to that shell section or formed head shall be designed in accordance with Section VIII Division 2,
在壳体或成型封头上的接管的设计以及所有接管及其补强圈都需要按照VIII 2进行设计。
2) For conical transitions, each of the shell elements comprising the junction and the junction itself shall be designed in accordance with Section VIII Division 2,
锥体过渡区，每段壳体元件组成的连接以及连接本身需要按照VIII 2进行设计。
3) For material impact test exemptions, the required thickness used in the coincident ratio defined in Section VIII Division 1 shall be calculated in accordance with Section VIII Division 2.
对于材料冲击试验的豁免，按照VIII I规定的控制厚度的比值应该按照VIII2卷计算。（比值就是按照UCS-66确定厚度的比值，也就是材料所受的应力比，见UCS-66图）
e) The fatigue analysis screening in accordance with Part 4, paragraph 4.1.1.4 of Section VIII Division 2, is not required. However, it may be used when required by UG-22 of Section VIII Division 1.
依照VIII 2的第四章，4.1.1.4节的疲劳分析筛选是不需要的。然而，它可以使用在当VIII 1 UG-22需要的时候。（UG-22设计需要考虑的载荷工况）
f) The provisions shown in Part 4 of Section VIII Division 2, to establish the design thickness and/or configuration using the Design-by-Analysis procedures of Part 5 of Section VIII Division 2 is not permitted.
VIII 2 第四章中的规定，使用VIII 2 第五章按照分析设计流程来确定设计厚度或结构时不允许的。
g) The Design Loads and Load Case Combinations specified in Part 4, paragraph 4.1.5.3 of Section VIII Division 2 are not required.
按照VIII 2第四章， 4.1.5.3考虑设计载荷和载荷组合是不必要的。
h) The primary stress check specified in Part 4, paragraph 4.1.6 of Section VIII Division 2, is not required.
按照VIII 2第四章， 4.1.6进行主应力校核是不必要的。
i) Weld Joint details shall be in accordance with Part 4, paragraph 4.2 of Section VIII Division 2, with the exclusion of Category E welds.
除了E类焊缝，详细焊接节点要按照VIII2 第四章 4.2节.
j) The fabrication tolerances specified in Part 4, paragraphs 4.3 and 4.4 of Section VIII Division 2 shall be satisfied. The provision of evaluation of vessels outside of tolerance per Part 4, paragraph 4.14 of Section VIII Division 2 is not permitted.
要满足VIII 2第四章4.3和4.4节中的制造公差要求。公差超过VIII2第四章4.14节的规定是不允许的。
k) The vessel and vessel components designed using these rules shall be noted on the Manufacturer's Data Report.
容器及容器组件设计如果使用这些规则，要在制造数据报告中标识。
l) All other requirements for construction shall comply with Section VIII Division 1.
其余建造要求要符合VIII 1。
m) This Code Case Number shall be shown on the Manufacturer's Data Report.
规范案例号要标示在制造数据报告中。
在PVElite中可以根据需要勾选是否选用此案例，路径为tool->set configuration parameters。
此案例大吼一声：我要有效省电30%