SECTION DESIGN DEVICE, SECTION DESIGN METHOD, COMPUTER PROGRAM, AND STORAGE MEDIUM

• Main Authors: TOMITA SUNAO, NISHIGAKI HIDEKAZU, YAMADA ATSUSHI, NAGAKUSA YOSHITAKA, AOYAMA TAKAYUKI, OMOTE RYUJI, KUBOTA KAZUKI
• Format: Patent
• Language: English; Japanese
• Published: 27.08.2020
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

To provide a technology capable of designing a cross-section shape of a shield that makes the pressure of a sound emitted from an opening appropriate.SOLUTION: A section design device includes: a storage unit that stores a regression model that receives a plurality of variables that define a cross-sectional shape as input and outputs a frequency at which transmitted sound pressure of a sound emitted from an opening through a shield does not satisfy target sound pressure; a main frequency component acquisition unit that acquires a main frequency component of a sound source; a cross-section information generation unit that uses the main frequency component and the regression model to generate cross-section information indicating a design space of a cross-sectional shape of the shield in which the transmitted sound pressure satisfies the target sound pressure.SELECTED DRAWING: Figure 3 【課題】開口部から放射される音を適切な音圧にする遮蔽物の断面形状を設計可能な技術を提供すること。【解決手段】断面設計装置は、断面形状を規定する複数の変数を入力とし、遮蔽物を介して開口部から放出される音の透過音圧が目標音圧を満たさない周波数を出力とする回帰モデルが記憶される、記憶部と、音源の主周波数成分を取得する主周波数成分取得部と、主周波数成分と、回帰モデルと、を用いて、透過音圧が目標音圧を満たす遮蔽物の断面形状の設計空間を示す断面情報を生成する、断面情報生成部と、を備える。【選択図】図３