林业机械与木工设备
林業機械與木工設備
임업궤계여목공설비
FORESTRY MACHINERY & WOODWORKING EQUIPMENT
2014年
10期
44-46,49
,共4页
曹倚中%高会彬%汤亚楠%吴昊%张晓冬
曹倚中%高會彬%湯亞楠%吳昊%張曉鼕
조의중%고회빈%탕아남%오호%장효동
树种%厚度%胶合板%吸声系数
樹種%厚度%膠閤闆%吸聲繫數
수충%후도%효합판%흡성계수
species%thickness%plywood%sound absorption coefficient
采用驻波管法对胶合板的吸声性能进行研究,通过对泡桐、杨木、桦木、桉木以及竹胶合板的吸声系数进行测量,探了树种、厚度对胶合板吸声系数的影响。实验结果表明:胶合板成板树种、胶合板厚度对材料的声学性能影响显著,随着厚度的增加其吸声系数有所改善,在一定范围内,树种对胶合板吸声系数影响显著。
採用駐波管法對膠閤闆的吸聲性能進行研究,通過對泡桐、楊木、樺木、桉木以及竹膠閤闆的吸聲繫數進行測量,探瞭樹種、厚度對膠閤闆吸聲繫數的影響。實驗結果錶明:膠閤闆成闆樹種、膠閤闆厚度對材料的聲學性能影響顯著,隨著厚度的增加其吸聲繫數有所改善,在一定範圍內,樹種對膠閤闆吸聲繫數影響顯著。
채용주파관법대효합판적흡성성능진행연구,통과대포동、양목、화목、안목이급죽효합판적흡성계수진행측량,탐료수충、후도대효합판흡성계수적영향。실험결과표명:효합판성판수충、효합판후도대재료적성학성능영향현저,수착후도적증가기흡성계수유소개선,재일정범위내,수충대효합판흡성계수영향현저。
A standing wave tube method is used to study the sound absorption performance of plywood and the sound absorption coefficients of paulownia plywood,poplar plywood,birch plywood,eucaliptus plywood and bamboo plywood are measured to seek the effect of tree species and thickness of the sound absorption coefficient of plywood,with the experimental result showing that the tree species for plywood and plywood thickness have a noticeable effect on acoustic performance of materials. With the thickness increase,the sound absorption coefficient can improve to certain degree. With a certain scope, tree species have a significant effect on the sound absorption coefficient of plywood.