The　ship　base　is　a　structure　that　connects　the　equipment　to　the　hull　and　may　play　a　role　in　restraining　and　isolating　the　dynamic　load.　Adding　damping　on　the　base　to　improve　the　vibration　isolation　performance　is　an　important　measure　to　control　ship　vibration.　In　this　research,　the　energy　transfer　route　and　vector　cloud　of　the　ship　base　were　analyzed　employing　the　power　flow　theory,　and　then　the　placement　of　the　particle　damper　was　determined.　Through　the　discrete　optimization　of　different　particle　parameters　including　the　particle　material,　diameter　and　filling　rate,　the　best　vibration　reduction　effect　was　acquired.　The　simulation　and　experiment　results　show　that　the　particle　damping　has　obvious　damping　effect,　and　the　steel　particle　has　better　damping　effect　than　the　lead　particle　and　the　aluminum　particle.　The　change　of　particle　filling　rate　influences　the　vibration　characteristics,　and　the　best　effect　is　achieved　when　the　filling　rate　is　82%.　The　vibration　reduction　performance　relies　strongly　on　particle　diameters,　and　they　all　exert　obvious　vibration　suppression　effect　at　the　peak　acceleration　admittance.　The　proposed　discrete　optimization　strategy　effectively　saves　experiment　cost,　and　the　presented　particle　damper　may　be　traded　as　an　optional　scheme　in　vibration　reduce　treatment　of　ship　base.　©　2024