[{"data":1,"prerenderedAt":99},["ShallowReactive",2],{"R49tnildnBrNi879e2pOzG7KEXqZOrhaUZT-DM_wLDE":3,"article_mass-participation-factor_solidworks":10,"_apollo:default":97,"_apollo:identified":98},{"mailchimpAudience":4},{"actionUrl":5,"slug":6,"locale":7,"default":8,"__typename":9},"","mass-participation-factor","en","https:\u002F\u002F3ds.us3.list-manage.com\u002Fsubscribe\u002Fpost?u=ed4601044e1936748c0d2aa6b&id=e5080ff9fe&f_id=002d4de2f0","MailchimpAudience",{"posts":11},{"nodes":12,"__typename":96},[13],{"id":14,"slug":6,"title":15,"uri":16,"excerpt":17,"locale":18,"featuredImage":21,"tableOfContents":29,"content":30,"date":31,"authorJobTitle":5,"author":32,"masterings":42,"globalTags":46,"products":55,"disciplines":67,"seo":85,"__typename":95},"cG9zdDo0NDYxNQ==","Mass Participation Factor","\u002Fproducts\u002Fsolidworks\u002Fmass-participation-factor","\u003Cp>When you want to perform a linear dynamic problem (small displacement analysis…\u003C\u002Fp>\n",{"locale":19,"__typename":20},"en_US","Locale",{"node":22,"__typename":28},{"large":23,"__typename":24,"medium_large":23,"thumbnail":25,"srcSet":26,"sizes":27},"https:\u002F\u002Fblog-assets.solidworks.com\u002Fuploads\u002F2025\u002F12\u002F6a00d83451706569e201156fba0be9970c.png","MediaItem","https:\u002F\u002Fblog-assets.solidworks.com\u002Fuploads\u002F2025\u002F12\u002F6a00d83451706569e201156fba0be9970c-150x150.png","https:\u002F\u002Fblog-assets.solidworks.com\u002Fuploads\u002F2025\u002F12\u002F6a00d83451706569e201156fba0be9970c.png 316w, https:\u002F\u002Fblog-assets.solidworks.com\u002Fuploads\u002F2025\u002F12\u002F6a00d83451706569e201156fba0be9970c-258x300.png 258w","(max-width: 316px) 100vw, 316px","NodeWithFeaturedImageToMediaItemConnectionEdge",[],"\u003Cp>When you want to perform a linear dynamic problem (small displacement analysis with linear elastic materials), the technique used in SolidWorks Simulation is called \u003Cem>modal analysis\u003C\u002Fem> and requires a frequency analysis to be run first.\u003C\u002Fp>\u003Cp>This inevitably requires you to choose how many natural frequencies you want to solve for (the more you include, the more accurate your solution but the longer it will take to solve). But how do you know if you have chosen sufficient modes? One useful check is to plot the Mass Participation Factors.\u003C\u002Fp>\u003Cp>The Mass Participation associated with each mode represents the amount of system mass participating in that mode. Therefore, a mode with a large effective mass is usually a significant contributor to the system’s response. By plotting the Mass Participation you can see just how important each mode is.\u003C\u002Fp>\u003Cfigure class=\"wp-block-image size-large\">\u003Cimg loading=\"lazy\" decoding=\"async\" width=\"244\" height=\"164\" src=\"https:\u002F\u002Fblog-assets.solidworks.com\u002Fuploads\u002F2025\u002F12\u002F6a00d83451706569e20153935e2c78970b.png.webp\" alt=\"\" class=\"wp-image-44618\">\u003C\u002Ffigure>\u003Cp>One common rule of thumb is that a mode should be included if it contributes more than 2% of the total mass. Another is that a \u003Cem>Cumulative\u003C\u002Fem> Mass Participation factor of 0.8 in the predominant direction of vibration is recommended (this is found at the bottom of the list).\u003C\u002Fp>\u003Cp>However as with all of these rules, some judgement has to be made and they should not always constitute the final check. For example, with dynamics it is also important to ensure that you have a suitable spatial and temporal description of your modeshapes and loading.\u003C\u002Fp>\u003Cfigure class=\"wp-block-image size-large\">\u003Cimg loading=\"lazy\" decoding=\"async\" width=\"244\" height=\"130\" src=\"https:\u002F\u002Fblog-assets.solidworks.com\u002Fuploads\u002F2025\u002F12\u002F6a00d83451706569e20153935e2c7c970b.png.webp\" alt=\"\" class=\"wp-image-44619\">\u003C\u002Ffigure>\u003C!-- \u002Fwp:post-content -->\u003C!-- wp:paragraph -->\u003Cp>Technorati Tags: \u003Ca href=\"https:\u002F\u002Ftechnorati.com\u002Ftags\u002FSimulation+tips+%26+tricks\" rel=\"tag\">Simulation tips & tricks\u003C\u002Fa>,\u003Ca href=\"https:\u002F\u002Ftechnorati.com\u002Ftags\u002FLinear+Dynamics\" rel=\"tag\">Linear Dynamics\u003C\u002Fa>,\u003Ca href=\"https:\u002F\u002Ftechnorati.com\u002Ftags\u002FMass+Participation\" rel=\"tag\">Mass Participation\u003C\u002Fa>\u003C\u002Fp>\u003C!-- \u002Fwp:paragraph -->","2009-05-29T08:42:38",{"node":33,"__typename":41},{"nicename":34,"description":35,"slug":34,"name":36,"firstName":36,"lastName":5,"avatar":37,"__typename":40},"solidworks","Dassault Systèmes SolidWorks Corp. offers complete 3D software tools that let you create, simulate, publish, and manage your data. SolidWorks products are easy to learn and use, and work together to help you design products better, faster, and more cost-effectively. The SolidWorks focus on ease-of-use allows more engineers, designers and other technology professionals than ever before to take advantage of 3D in bringing their designs to life.","SOLIDWORKS",{"url":38,"__typename":39},"https:\u002F\u002Fsecure.gravatar.com\u002Favatar\u002F1456c94d954684cae05ba938017ad326ccab65a27136da3cef939510afab2973?s=96&d=mm&r=g","Avatar","User","NodeWithAuthorToUserConnectionEdge",{"nodes":43,"edges":44,"__typename":45},[],[],"PostToTaxonomy_masteringConnection",{"nodes":47,"__typename":54},[48],{"id":49,"name":50,"slug":51,"uri":52,"__typename":53},"dGVybTo5NjA3","Simulation","simulation","\u002Ftags\u002Fsimulation\u002F","Taxonomy_tag","PostToTaxonomy_tagConnection",{"edges":56,"nodes":64,"__typename":66},[57],{"isPrimary":58,"node":59,"__typename":63},false,{"id":60,"name":36,"slug":34,"uri":61,"__typename":62},"dGVybTo1Ng==","\u002Fproducts\u002Fsolidworks\u002F","Taxonomy_product","PostToTaxonomy_productConnectionEdge",[65],{"id":60,"name":36,"slug":34,"uri":61,"__typename":62},"PostToTaxonomy_productConnection",{"nodes":68,"edges":80,"__typename":84},[69],{"id":70,"name":50,"slug":51,"uri":71,"parentId":72,"disciplines":73,"__typename":79},"dGVybTo4NQ==","\u002Fdisciplines\u002Fsimulation\u002F",null,{"nodes":74,"__typename":78},[75],{"title":50,"uri":76,"parentId":72,"__typename":77},"\u002Fdisciplines\u002Fsimulation","Discipline","Taxonomy_disciplineToDisciplineConnection","Taxonomy_discipline",[81],{"isPrimary":58,"node":82,"__typename":83},{"parentId":72,"id":70,"name":50,"slug":51,"uri":71,"__typename":79},"PostToTaxonomy_disciplineConnectionEdge","PostToTaxonomy_disciplineConnection",{"canonical":5,"title":86,"metaDesc":5,"opengraphAuthor":5,"opengraphDescription":87,"opengraphTitle":15,"opengraphUrl":88,"opengraphSiteName":89,"opengraphPublishedTime":90,"opengraphModifiedTime":91,"twitterTitle":5,"twitterDescription":5,"readingTime":92,"metaRobotsNoindex":93,"__typename":94},"Mass Participation Factor - Blog Solidworks","When you want to perform a linear dynamic problem (small displacement analysis…","\u002Fproducts\u002Fsolidworks\u002Fmass-participation-factor\u002F","Blog Solidworks","2009-05-29T12:42:38+00:00","2026-02-12T17:35:51+00:00",1,"noindex","PostTypeSEO","Post","RootQueryToPostConnection",{},{},1777251301548]