The paper demonstrates improved structural low-frequency vibroacoustic performance of cross-laminated timber (CLT) floor panels by informed selection of the wood material. The use of wood species and strength classes that are not traditionally assigned to CLT panels was investigated in order to study their influence on dynamic characteristics and vibroacoustic response metrics. The potential of each of the orthotropic material properties to alternate the vibration response was examined to determine the governing parameters of the low-frequency vibroacoustic performance. The effects on transfer mobility response functions, and eigenfrequencies and mode shapes were used for a rigorous performance study of the panels. It was found that using laminations with stiffness properties typical for hardwoods ash, beech, and birch can significantly improve the performance of a CLT floor panel, and they outperform laminations of typical softwood strength classes.

本文证明了通过合理选择木材可以改善交叉层压木材（CLT）地板的结构低频振动声性能。研究了传统上未分配给CLT面板的木材种类和强度等级的用途，以研究其对动力特性和振动声响应指标的影响。检验了各正交异性材料属性交替振动响应的潜力，以确定低频振动声学性能的控制参数。对转移迁移响应函数，本征频率和模式形状的影​​响用于面板的严格性能研究。发现使用具有硬木灰，山毛榉木，