鋳型造型機の低騒音化対策について

概要

論文の詳細を見る
For the purpose of reducing the impact noise radiated from a jolt-type moulding machine, a practical method to realize noise reduction is presented further the effectiveness as well as the efficiency of the proposed method is verified experimentally. First, from the viewpoint of both a noise analysis and a modal analysis of a jolt-type moulding machine, the nois sources of the moulding machine are investigated. Then, by placing a buffering material between a jolting table and a squeezing piston of the moulding machine, a spectrum of the impact force is modified so as not to excite the vibration modes causing the noise radiation. Moreover, the relation between the hardness of the buffering material, the noise reduction level and the efficiency of the moulding machine is clarified. Finally, without losing the efficiency of solidifying sands, a method to reduce the impact noise radiated from the jolt-type moulding machine is shown presented.
一般社団法人日本機械学会の論文
1988-09-25