A　new　type　of　eccentric　wheel　layered　friction　damper　was　proposed　in　order　to　solve　a　series　of　problems　induced　by　the　excessive　pressure　needed　for　the　normal　friction　damper.　To　achieve　the　goal　of　obtaining　proper　damping　force　under　a　smaller　pressure,　parallel　multilayer　friction　plates　were　adopted.　What＇s　more,　a　pressure　device　with　eccentric　wheels　was　designed　to　get　a　variable　friction　function　and　to　keep　the　pre-pressure　on　the　friction　surface　of　the　damper　at　0　during　the　standby　stage　of　the　service　period　so　as　to　improve　the　reliability　of　the　damper　and　solve　the　problem　of　excessive　pressure.　The　performance　of　the　damper　was　studied　through　reciprocating　load　tests.　The　relation　between　the　damping　force　and　the　displacement　of　the　eccentric　wheel　layered　friction　damper　was　obtained,　and　the　mechanical　properties　of　the　eccentric　wheel　layered　friction　damper　were　analyzed　with　finite　element　method.　The　results　show　that　the　layered　design　of　friction　damper　can　effectively　enlarge　the　friction　damping　force.　The　theoretical　and　finite　element　simulation　results　are　in　good　agreement　with　the　experimental　results,　which　shows　the　results　can　be　used　as　references　for　the　design　of　dampers.　©　2021,　Editorial　Office　of　Journal　of　Vibration　and　Shock.　All　right　reserved.