對于一些局部分析，GB150允許采用分析設(shè)計(jì)。那么在ASME中是否也有類似的規(guī)定呢？

ASME的案例2695允許使用VIII 2設(shè)計(jì)規(guī)則應(yīng)用于VIII 1的壓力容器，對于其具體如何執(zhí)行，委員會給出了一些回答，我試著翻譯一下。

Case 2695

Code Case to Allow Section VIII Division 2 Design Rules to be used for a Section VIII Division 1 Pressure Vessel

2695允許使用VIII 2設(shè)計(jì)規(guī)則應(yīng)用于VIII 1的壓力容器。

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?

問題：什么情況下允許將VIII 2 part4的按規(guī)則設(shè)計(jì)的要求應(yīng)用于 VIII 1壓力容器部件的設(shè)計(jì)。

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：委員會的意見是在以下的情形下，VIII 2 part4的按規(guī)則設(shè)計(jì)的要求可以應(yīng)用于 VIII 1壓力容器部件的設(shè)計(jì)。

a) The allowable design tensile stress shall be in accordance with UG-23 of Section VIII Division 1.

允許設(shè)計(jì)拉伸強(qiáng)度按照VIII 1的UG-23.（UG-23內(nèi)容是最大許用應(yīng)力值）

b) The weld joint efficiency shall be established in accordance with UW-11 and UW-12 of Section VIII Division 1.

焊接接頭系數(shù)符合VIII 1的UW-11和UW-12（UW-11射線及超聲波檢測，UW-12為接頭系數(shù)）

c) Material impact test exemptions shall be in accordance with the rules of Section VIII Division 1.

材料沖擊試驗(yàn)豁免按照VIII 1的規(guī)則。（沖擊試驗(yàn)豁免參照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;

如果殼體或者成型封頭的厚度采用VIII 2設(shè)計(jì)規(guī)則，則：

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,

在殼體或成型封頭上的接管的設(shè)計(jì)以及所有接管及其補(bǔ)強(qiáng)圈都需要按照VIII 2進(jìn)行設(shè)計(jì)。

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,

錐體過渡區(qū)，每段殼體元件組成的連接以及連接本身需要按照VIII 2進(jìn)行設(shè)計(jì)。

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.

對于材料沖擊試驗(yàn)的豁免，按照VIII I規(guī)定的控制厚度的比值應(yīng)該按照VIII2卷計(jì)算。（比值就是按照UCS-66確定厚度的比值，也就是材料所受的應(yīng)力比，見UCS-66圖）

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節(jié)的疲勞分析篩選是不需要的。然而，它可以使用在當(dāng)VIII 1 UG-22需要的時(shí)候。（UG-22設(shè)計(jì)需要考慮的載荷工況）

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 第四章中的規(guī)定，使用VIII 2 第五章按照分析設(shè)計(jì)流程來確定設(shè)計(jì)厚度或結(jié)構(gòu)時(shí)不允許的。

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考慮設(shè)計(jì)載荷和載荷組合是不必要的。

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進(jìn)行主應(yīng)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類焊縫，詳細(xì)焊接節(jié)點(diǎn)要按照VIII2 第四章 4.2節(jié).

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.

要滿足VIII 2第四章4.3和4.4節(jié)中的制造公差要求。公差超過VIII2第四章4.14節(jié)的規(guī)定是不允許的。

k) The vessel and vessel components designed using these rules shall be noted on the Manufacturer's Data Report.

容器及容器組件設(shè)計(jì)如果使用這些規(guī)則，要在制造數(shù)據(jù)報(bào)告中標(biāo)識。

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.

規(guī)范案例號要標(biāo)示在制造數(shù)據(jù)報(bào)告中。

在PVElite中可以根據(jù)需要勾選是否選用此案例，路徑為tool->set configuration parameters。

此案例大吼一聲：我要有效省電30%