{"id":1997,"date":"2022-09-29T12:30:51","date_gmt":"2022-09-29T03:30:51","guid":{"rendered":"https:\/\/www.ssil.co.jp\/product\/EMSolution\/en2\/?post_type=basic_ems&#038;p=1997"},"modified":"2022-10-06T15:30:07","modified_gmt":"2022-10-06T06:30:07","slug":"b03","status":"publish","type":"basic_ems","link":"https:\/\/www.ssil.co.jp\/product\/EMSolution\/en\/about\/basic_ems\/b03\/","title":{"rendered":"3. Main characteristics of analysis methods in EMSolution"},"content":{"rendered":"<ul class=\"list01\">\n<li>Standardized analysis methods such as the <span class=\"red\"><strong>$A-\\phi$ method, the edge element finite element method<\/strong><\/span>, and <span class=\"red\"><strong>the ICCG method<\/strong><\/span> were incorporated from the beginning to <strong>reduce analysis volume<\/strong> and <strong>increase speed<\/strong>, enabling <strong>large-scale analysis<\/strong>.<\/li>\n<p>&nbsp;<\/p>\n<li><span class=\"red\">Tree gauges by tree structures<\/span> and <span class=\"red\">$\\phi$=0 gauges<\/span> can be imposed <sup>[13]<\/sup>. Recently, it has become clear that calculations are faster when no gauge is imposed (gauge indefinite), but these gauges reduce the number of unknowns and reduce the com-putational capacity. Since 2000, gauge indefinite has been more commonly used.<\/li>\n<p>&nbsp;<\/p>\n<li><strong>The two-potential (<span class=\"red\">$A-A_r$<\/span>) method<\/strong>, which uses <strong>reduced magnetic potential<\/strong>, is employed. $A_r$ can be replaced by the magnetic scalar potential $\\Omega_r$.<\/li>\n<p>&nbsp;<\/p>\n<li>In nonlinear analysis, the convergence of nonlinear iterative calculations using the <strong>ICCG<\/strong> and <span class=\"red\">Newton-Raphson methods<\/span> is adjusted to <strong>improve the calculation speed of nonlinear cal-culations<\/strong>.<\/li>\n<p>&nbsp;<\/p>\n<li>For transient analysis, the <span class=\"red\">Crank-Nicolson $\\phi$ method<\/span> is used.<\/li>\n<p>&nbsp;<\/p>\n<li><span class=\"red\">The nodal force method<\/span> is uniquely developed and employed to calculate electromagnetic forces, including their distribution. This eliminates the need for cumbersome specification of integration surfaces as in the Maxwell stress method. <span class=\"red\">Lorentz force<\/span> in non-magnetic materials can also be calculated.<\/li>\n<p>&nbsp;<\/p>\n<li><span class=\"red\">Two-dimensional analysis<\/span> is analyzed as a three-dimensional problem. That is, it is analyzed as a one-layer finite element mesh. This allows for a unified interpretation of the two- and three-dimensional problem. Although there is some computational waste because the problem is treated as a three-dimensional problem, the degrees of freedom and other factors are the same, making it equivalent to a normal two-dimensional analysis.<\/li>\n<p>&nbsp;\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Standardized analysis methods such as the $A-\\phi$ method, the edge element finite element method, and the ICCG method were incorporated from the beginning to reduce analysis volume and increase speed, enabling large-scale analysis. &nbsp; Tree gauges by tree structures and $\\phi$=0 gauges can be imposed [13]. Recently, it has become clear that calculations are faster [&hellip;]<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","class_list":["post-1997","basic_ems","type-basic_ems","status-publish","hentry"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ssil.co.jp\/product\/EMSolution\/en\/wp-json\/wp\/v2\/basic_ems\/1997"}],"collection":[{"href":"https:\/\/www.ssil.co.jp\/product\/EMSolution\/en\/wp-json\/wp\/v2\/basic_ems"}],"about":[{"href":"https:\/\/www.ssil.co.jp\/product\/EMSolution\/en\/wp-json\/wp\/v2\/types\/basic_ems"}],"wp:attachment":[{"href":"https:\/\/www.ssil.co.jp\/product\/EMSolution\/en\/wp-json\/wp\/v2\/media?parent=1997"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}