|
摘要：
|
|
依据噪声控制学中噪声控制工程评价方法的分类原理、冲压工艺模具学中冲裁变形细观理论模型分析各个变形阶段的噪声影响的定性认识,以及冲裁工艺噪声的实际情况,选择钢、铝、铜几种金属板料,先后用FFT(CF-920)和东华测试分析系统采集数据,进行了冲裁曲线和冲裁工艺噪声发射声压波形图的测试。根据实验结果,综合提出了冲压加工噪声树的概念,给出了描述冲裁工艺噪声发射声压波形图全貌的树廓形模型,为探寻冲裁工艺噪声发射规律及其控制研究提供一种新资料讯息。
|
|
According to the classification fundamental of noise control engineering evaluation methods in noise control theory,qualitative understanding of each deformation stage's effect on noise through using meso-theoretic model of blanking deformation in press technology and its die,and the factual condition of blanking process noise,selecting sheet steels,sheet aluminum and sheet coppers as blanked materials to do blanking experiments for measuring blanking force and blanking noise,two kinds of diagram were tested successively with FFT(CF-290) analyzer and Donghua test and analysis system,one is blanking curve,and the other is noise emission sound-pressure wave graph in blanking process.Based on several long-time experimental results,the integrated concept of Press Working Noise Tree was brought forward,and a tree model to describe the whole noise emission sound-pressure wave graph in blanking process was given,consequently,a new kind of information was provided for exploring the principle of noise emission in blanking process and its control research.
|
|
基金项目：
|
|
江西省自然科学基金资助项目(0450042)
|
|
作者简介：
|
|
|
|
参考文献：
|
[1]卢险峰.冲压工艺模具学[M].2版.北京:机械工业出版社,2006.
[2]骚音振動小特集[J].塑性と加工,1974,15(160).
[3]Jianhua Mo,Masao Kondoh,Nobuhiro Koga,et al.Consid-eration on the relationship between breakthrough and noiseduring press blanking[J].Journal of JSTP,1997,38(435):367-371.
[4]村川正夫,古闲伸裕.プレス打拔き骚音の研究[A].第44回塑性加工連合講演会論文集[C].东京:日本塑性加工学会,1993.
[5]任文堂.噪声控制技术和设备的发展现状和展望[J].应用声学,1999,18(6):1-5.
[6]马大猷.噪声控制学[M].北京:科学出版社,1987.
[7]诺顿M P.工程噪声和振动分析基础[M].北京:航空工业出版社,1993.
[8]陈维民,曹喜滨,高乃光,等.降低冲压噪声的试验研究[J].材料科学与工艺,1994,2(2):75-78.
[9]陈威,陈维民,刘钢.冲床噪声产生的原因、频谱特性及传播途径分析[J].锻压技术,1999,24(5):40-45.
[10]赵升吨,史维祥.机械压力机噪声产生的机理及其特性研究[J].噪声与振动控制,1996,16(6):36-39.
[11]Koss L L,Alfredson R J.Transient sound radiated byspheres undergoing an elastic collision[J].Journal of Soundand Vibration,1973,27(1):59-68.
[12]Pierre G,Nikolas T.Numerical methods for modeling andoptimization of noise emission application[C].American So-ciety of Mechanical Engineers:Noise Control and AcousticsDivision(Publication)NCA,ASME,1997.
[13]Guo B,Chen W M,Wang Z R.Analysis of blanking vibra-tion with consideration of the break-through state[J].Jour-nal of Materials Processing Technology,1998,75(1):117-121.
[14]Otsu M,Yamagata C,Osakaga K.Reduction of blankingnoise by controlling press motion[J].CIRP Annals-Manu-facturing Technology,2003,52(1):245-248.
[15]Masao Murakawa,Jinhua Mo,Yoshihiro Wakatsuki,et al.Investigation of blanking noise reduction using a hydraulic in-ertia damper[J].Journal of Materials Processing Technolo-gy,2001,112(2-3):205-213.
[16]荣兆杰.全吨位低噪声冲裁缓冲技术和德华牌液压机[A].第七届全国锻压学术年会论文集[C].北京:航空工业出版社,1999.
[17]卢险峰,揭小平,姚卿梅.冲裁曲线的测试与波形分析[J].模具技术,1990,(5):1-4.
[18]卢险峰.板材的冲裁力学研究及应用[J].应用科学学报,1992,10(3):221-225.
[19]吴永东,吴国荣,卢险峰.冲裁加工最大噪声声压级预测模型[J].锻压技术,2003,28(4):10-12.
[20]戴源德,卢险峰,吴永东.板料硬度预报冲裁噪声的研究[J].噪声与振动控制,2006,26(2):35-38.
[21]戴源德,卢险峰,揭小平,等.反顶力作用下冲裁噪声的实验研究[J].中国机械工程,2006,17(7):758-761.
[22]卢险峰,陈勇,吴永东.级进模两步冲裁法:中国,ZL031010874.4[P].2005-11.
|
|
服务与反馈：
|
|
【文章下载】【加入收藏】
|
|
|
|
