ansys電磁場(chǎng)分析指南-第七章3-d諧波磁場(chǎng)分析棱邊單元方法-資料下載頁(yè)
2025-08-12 16:41本頁(yè)面
【導(dǎo)讀】電阻和相對(duì)磁導(dǎo)率可以是正交各向異性，也可以與溫度相關(guān)。詳見(jiàn)《ANSYS單元手冊(cè)》和《ANSYS理論手冊(cè)》。速度效應(yīng)在靜態(tài)、諧波和瞬態(tài)分析中都有效。第2章“二維靜態(tài)磁場(chǎng)分析”中討論了運(yùn)動(dòng)導(dǎo)體分析的應(yīng)用情況。對(duì)于3D問(wèn)題，設(shè)置單元KEYOPT選項(xiàng)和實(shí)常數(shù)的過(guò)程相似于2D諧波分析。截面應(yīng)保持常數(shù)?？傮w笛卡兒坐標(biāo)系下的X、Y、Z三個(gè)方向的角速度分量，低，通常，諧波頻率小于就能產(chǎn)生準(zhǔn)靜態(tài)解，準(zhǔn)靜態(tài)解的結(jié)果是存放在實(shí)部里的。用AZ=0來(lái)模擬磁力線平行邊界條件，磁力線垂直邊界條件自然發(fā)生，無(wú)需說(shuō)明。此時(shí)通過(guò)把自由度的值設(shè)置為零來(lái)去掉不需要的自由度；這使ANSYS能更塊地進(jìn)。使用棱邊單元做電磁分析必須要求估算，因此，在大多數(shù)情況下，不要關(guān)閉自動(dòng)估算。選擇了時(shí)間積分電勢(shì)選項(xiàng)，則寫(xiě)入到）文件中。
【正文】 ************ /COM SET,1,1! A harmonic analysis provides two result data sets. !The SET mand is used to select a data set !to carry out operations upon. The default set !is the real part of the last solution step. ! ! *** Use the element table (ETABLE) option to ! store postprocessing items such as volume, centroid coordinates !magic field, flux density, current density, element energy, !Joule loss, magic force ! print items in a table format ! carry out operations over items ! obtain totals by summing up element items ! ! define element table item ! ETABLE,fxr,FMAG,X! Store real x ponent of timeaverage force ! POWERH! calculate timeaverage power loss ! /COM /COM ********* imaginary part *************** /COM set,1! select imaginary data set solution !similar operations that on the real set ! ETABLE,fxi,FMAG,x! Store imaginary ponent of timeaverage force ! SADD,fxrms,fxr,fxi! Calculate timeaverage force by summing ponents ! SSUM! Sum element items to obtain totals ! FINISH ! ! *** advanced part: coupling ! !Up to this point magics was considered only. !It is demonstrated below, how the results of a magic analysis !can be passed to subsequent thermal and/or structural analyses. ! ! *** couple with thermal analysis ! /PREP7! enter preprocessor !nodes and elements defined in the magic analysis !are used for the thermal analysis ! ET,1,90! change element type 1, which used to be a magic !element to a thermal element ! LDREAD,HGEN,2,rst! Read heat generation (HGEN) load from the result file, !of the magic analysis which defaults to ! !Note that the result file name changed pared to !a static analysis. ! !The heat generation rate (Joule power loss) is the !sum of Joule heat parts obtained in real and imaginary !result set. This is automatically done if the KIMG !slot of LDREAD is set to 2, as show above. ! BFELIST,ALL,HGEN! List heat generation (HGEN) element body loads !Compare the list with the element Joule power loss ! FINISH! Exit preprocessor !From this point on follow steps of a thermal analysis ! ! *** couple with structural analysis ! /PREP7! enter preprocessor !nodes and elements defined in the magic analysis !are used for the structural analysis ! ET,1,45! change element type 1, which used to be a magic !element to a structural element ! LDREAD,FORC,2,rst! Read nodal force (FORCE) load from the result file, !of the magic analysis which defaults to ! !Note that the result file name changed pared to !a static analysis. ! !The heat generation rate (Joule power loss) is the !sum of Joule heat parts obtained in real and imaginary !result set. This is automatically done if the KIMG !slot of LDREAD is set to 2, as show above. ! FLIST! List nodal forces !Compare the list with the element nodal magic force !(FMAG) printout. Note that a nodal force for the !structural analysis is the sum of nodal magic forces !over elements adjacent to the pertinent node. ! FINISH! Exit preprocessor !From this point on follow steps of a structural analysis
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