In　order　to　accurately　describe　the　influence　of　magnetic　circuit　sensitive　parameters　on　frequency　response　as　a　theoretical　guide,　a　multi-field　simulation　model　of　electro-magnetic-solid　coupling　for　electromechanical　converter　with　fused　hysteresis　was　proposed　to　accurately　simulate　the　dynamic　response　of　the　converter　at　the　millisecond　level.　Firstly,　according　to　the　structure　principle　of　the　converter　and　the　interaction　relationship　of　each　physical　quantity,　the　electro-magnetic-solid　coupling　dynamic　simulation　model　of　the　converter　was　established　on　COMSOL　platform,　and　the　J−A　model　was　introduced　to　describe　the　dynamic　hysteresis　characteristics　during　high　frequency　excitation.　Then,　a　high　frequency　electromagnetic　force　test　bench　was　built　to　verify　the　accuracy　of　the　simulation　model.　Finally,　based　on　the　established　model,　the　key　parameters　affecting　the　frequency　response　of　the　converter　were　analyzed,　and　the　optimization　methods　of　excitation　voltage,　coil　turns,　armature　length　and　spring　stiffness　were　obtained.　The　results　show　that　the　relative　error　of　the　maximum　electromagnetic　force　between　simulation　results　and　experimental　data　is　only　0.65%　in　the　electromagnetic-magnetic-solid　multi-field　coupling　simulation　model　of　electro-mechanical　converters　with　hysteresis　proposed　in　this　paper.　According　to　the　simulation,　the　excitation　voltage　of　the　electric-mechanical　converter　should　be　controlled　between　12　V　and　15　V,　the　length　of　the　armature　should　be　8.0　mm　to　10.8　mm,　the　number　of　turns　of　the　coil　is　220,　and　the　spring　stiffness　should　be　8　N/mm　to　14　N/mm.　©　2022　Central　South　University　of　Technology.　All　rights　reserved.