TY - GEN
T1 - NUMERICAL PREDICTION METHOD FOR DRIVING-POINT MOBILITY OF CLT STRUCTURES
AU - Mizunuma, Haruki
AU - Asakura, Takumi
AU - Hirakawa, Susumu
AU - Hiramitsu, Atsuo
N1 - Publisher Copyright:
© 2023 Proceedings of the International Congress on Sound and Vibration. All rights reserved.
PY - 2023
Y1 - 2023
N2 - Recently, Cross-Laminated Timber (CLT) structures have gained popularity due to their environmental benefits. On the other hand, CLT structures have a similar acoustic problem with lightweight buildings that there can be a problem with heavy-weight floor impact sound. Therefore, the prediction model for the heavy-weight floor impact sound at the design stage is essential to obtain a comfortable living environment. To accurately predict the heavy-weight floor impact sound characteristics like driving-point mobility of floor slabs, accurate numerical modeling of floor vibration is of great importance. However, there are not many studies that use the finite element method (FEM) to predict or examine the driving-point mobility of CLT panels yet. Hence, this paper investigated the prediction method of the driving-point mobility of CLT panels using FEM. The simulation considered two types of modeling approaches: single-plate modeling with equivalent Young's modulus and multi-layered modeling with Japanese cedar Young's modulus. The validity of the proposed method using FE modeling was confirmed by comparison between the results of the calculation and measurement.
AB - Recently, Cross-Laminated Timber (CLT) structures have gained popularity due to their environmental benefits. On the other hand, CLT structures have a similar acoustic problem with lightweight buildings that there can be a problem with heavy-weight floor impact sound. Therefore, the prediction model for the heavy-weight floor impact sound at the design stage is essential to obtain a comfortable living environment. To accurately predict the heavy-weight floor impact sound characteristics like driving-point mobility of floor slabs, accurate numerical modeling of floor vibration is of great importance. However, there are not many studies that use the finite element method (FEM) to predict or examine the driving-point mobility of CLT panels yet. Hence, this paper investigated the prediction method of the driving-point mobility of CLT panels using FEM. The simulation considered two types of modeling approaches: single-plate modeling with equivalent Young's modulus and multi-layered modeling with Japanese cedar Young's modulus. The validity of the proposed method using FE modeling was confirmed by comparison between the results of the calculation and measurement.
KW - cross-laminated method
KW - finite element method
KW - numerical simulation
KW - structural analysis
UR - http://www.scopus.com/inward/record.url?scp=85170639221&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85170639221
T3 - Proceedings of the International Congress on Sound and Vibration
BT - Proceedings of the 29th International Congress on Sound and Vibration, ICSV 2023
A2 - Carletti, Eleonora
PB - Society of Acoustics
T2 - 29th International Congress on Sound and Vibration, ICSV 2023
Y2 - 9 July 2023 through 13 July 2023
ER -