635 Impulse Noise Reduction by Using Double Floor with Magnetic Levitated Legs

Abstract

This paper proposes to reduce a heavy − weight impact noise of double fi oor ． The magnetic Ievitated leg using the repulsion of permanent magnet has been developed to isolate the impact force f ｝ om the double floor ． In the experiments ， constructio 皿 me 出 od ef the magnetic levi 匸ated legs is investigated 丘 om the displacement of static or impact load ， and the floor impact noise ， The experimenta 】res ロ 1ts show that