云杉属木材纵向和径向声振动特性参数关系的研究  

Study on the Relationships between Longitude and Radial Sound Vibration Parameters of Genus Picea

作　　者：沈隽[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《林业科学》2006年第3期21-24,共4页Scientia Silvae Sinicae

基　　金：国家自然科学基金(0071007015);东北林业大学创新项目资助

摘　　要：采集7种我国具有代表性的云杉属木材及1种作对比用的美国产西加云杉试件,通过纵、横向木材试件在高次振动模式下的试验,测量木材各项声振动参数。研究发现:纵向材与径向材振动参数比之间存在着一定的相关性,据此可以选择各向异性适中,韧性好,纵向、径向振动受剪切影响小的木材制作乐器的音板。Longitude sawn timber usually was used as studying the properties of instrument vibration board. As radial sawn timber was also selected to be vibration board in real production, it is very important to evaluation the properties of the vibration board in the round especially when radial sawn timber sound radiation character and its relationship to longitude sawn timber have been studied. Up till now, for the nation and international experts, radial sawn timber has not been studied on its role and its function in sound radiation. This paper deals with seven important Spruce species that grow up in Sichuan and Heilongjiang Province of China and a Picea sitchensis specimen from America. Under the high mode bending vibration, MOE and other parameters of longitude and radial wood are tested. The results showed that there are some relationships between the vibration properties of longitude and radial wood. This research can be helpful to select the proper anisotropy, good toughness, and weakness in shear of longitude and radiation vibration timber to be musical instrument wood.

关 键 词：云杉属木材 纵向 径向 声振动特性 

分 类 号：S781.38[农业科学—木材科学与技术]