The　effect　of　surface　texture　on　the　efficiency　of　friction　energy　dissipation　in　a　nonlinear　energy　sink　(NES)　was　investigated.　Analysis　of　variance　(ANOVA)　was　employed　to　develop　a　quadratic　regression　model　explicating　the　relationship　between　control　factors　(groove　width,　depth,　and　density)　and　responses　(shear　stress　and　friction　coefficient)　associated　with　rectangular　groove　surface　texture.　Response　surface　methodology　(RSM)　was　utilized　to　optimize　the　control　variables　for　increasing　shear　stress　and　friction　coefficient　between　magnetic　fluids　(MFs)　and　groove　texture.　Prototype　testing　revealed　that　groove　texture　significantly　enhanced　friction　energy　dissipation　efficiency,　confirming　the　effectiveness　of　optimized　texture　for　MF-NES.　©　2024　Elsevier　Ltd