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对于乐器用代替材料的设计，通过振动测试系统测定了一些木质乐器材料的比动态模量和对数衰减系数等振动特性。将乐器用木材的振动特性同通用木材运行了比较。通常，从以上参数可以计算出各种音响特性，发现了乐器用木材的特点，与通用木材相比，具有高比动态模量和低对数衰减系数的特点。但从单向ＣＦＲＰ和ＣＦＲＰ的测试结果发现，这些材料不具备乐器用代替材料的特性。因为，仅用ＦＲＰ作为乐器用代替材料是不可能的。我们试制了两种粘结结构并研究其振动特性。一种是２层结构，ＣＦＲＰ／ＥＶＡ泡沫粘结组合。另外一种是３层夹层结构ＦＲＰ，／软木／ＦＲＰ粘结组合。结果证明，通过改变ＥＶＡ泡沫位置，可控制振动特性。因此，建议使用２种３层夹层结构材料，即ＣＦＲＰ／软木／ＣＦＲＰ和ＧＦＲＰ／软木／ＧＦＲＰ。在这些结构中，表皮层／中心层的厚度比对振动特性有很大影响。实验证明：通过控制厚度比，可使ＧＦＲＰ／软木／ＧＦＲＰ具有乐器用材料的振动特性。这些结果表明：使用ＦＲＰ的２层结构和３层夹层结构对于乐器用代替材料的设计是有效的。
For the design of alternative materials for musical instruments, the vibration characteristics of some wood musical instrument materials such as specific dynamic modulus and logarithmic attenuation coefficient were measured by vibration test system. The vibration characteristics of wood for instruments are compared with those of general wood. In general, various acoustic characteristics can be calculated from the above parameters and the wood characteristics of musical instruments have been found to have characteristics of high specific dynamic modulus and low logarithmic attenuation coefficient compared with general-purpose wood. However, the test results from one-way CFRP and CFRP found that these materials do not have the characteristics of musical instruments to replace materials. Because it is impossible to use only FRP as a substitute for musical instruments. We experimented with two bonded structures and studied their vibration characteristics. One is a 2-layer structure, CFRP / EVA foam bonding combination. The other is a 3-layer sandwich structure FRP / cork / FRP bonding combination. The results show that by changing the EVA foam position, vibration characteristics can be controlled. Therefore, two types of 3-layer sandwich construction materials, CFRP / cork / CFRP and GFRP / cork / GFRP are recommended. In these structures, the thickness ratio of the skin layer / center layer greatly affects the vibration characteristics. Experiments show that: by controlling the thickness ratio, GFRP / cork / GFRP has the vibration characteristics of musical instruments. These results show that the 2-layer structure using FRP and the 3-layer sandwich structure are effective for the design of alternative materials for musical instruments.