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SOUND-INSULATION-MATERIAL SIZE CALCULATION DEVICE AND SOUND-INSULATION-MATERIAL SIZE CALCULATION PROGRAM
To provide a sound-insulation-material size calculation device capable of obtaining a minimum necessary size of an arbitrary shape of a sound insulation material in order to set a noise level at a sound receiving point to a target value.SOLUTION: The sound-insulation-material size calculation device first sets a target noise correction amount at a sound receiving point based on a target sound noise level. Subsequently, an operation of calculating path differences of a two-dimensional diffraction path diffracted at the upper, lower, left and right edges of a sound insulation material are calculated for the set target noise correction amount, a position and a size of the sound insulation material are calculated from the path differences, and a noise correction amount for the sound insulation material on the position and of the size is calculated from an acoustic level calculation by a three-dimensional shortest diffraction path. These operations are repeated until the target noise correction amount is reached. Finally, the positions and sizes of the sound insulation material calculated for sets of individual noise points and individual sound receiving points are graphically output on a same figure screen. As a result, minimum necessary height and extension of the sound insulating material are calculated for the target noise level.SELECTED DRAWING: Figure 3
【課題】受音点における騒音レベルを目標値とするために最小限必要な遮音材の任意形状のサイズを求めることが可能な遮音材サイズ算定装置の提供。【解決手段】遮音材サイズ算定装置は、最初に、目標騒音レベルに基づき、受音点における目標騒音補正量を設定する。次いで、設定された目標騒音補正量に対し、遮音材上下左右端辺で回折する二次元回折行路の行路差を求め、それら行路差から遮音材の位置及びサイズを算出し、この位置及びサイズの遮音材に対し三次元最短回折行路による音響レベル演算から騒音補正量を演算する、という操作を目標騒音補正量に達するまで繰り返す。最後に、各騒音点及び各受音点の組に対し算出された遮音材の位置及びサイズを同一図画面上に図画出力する。これにより目標騒音レベルに対して必要最小限な遮音材の高さ及び延長が算出される。【選択図】図３
SOUND-INSULATION-MATERIAL SIZE CALCULATION DEVICE AND SOUND-INSULATION-MATERIAL SIZE CALCULATION PROGRAM
To provide a sound-insulation-material size calculation device capable of obtaining a minimum necessary size of an arbitrary shape of a sound insulation material in order to set a noise level at a sound receiving point to a target value.SOLUTION: The sound-insulation-material size calculation device first sets a target noise correction amount at a sound receiving point based on a target sound noise level. Subsequently, an operation of calculating path differences of a two-dimensional diffraction path diffracted at the upper, lower, left and right edges of a sound insulation material are calculated for the set target noise correction amount, a position and a size of the sound insulation material are calculated from the path differences, and a noise correction amount for the sound insulation material on the position and of the size is calculated from an acoustic level calculation by a three-dimensional shortest diffraction path. These operations are repeated until the target noise correction amount is reached. Finally, the positions and sizes of the sound insulation material calculated for sets of individual noise points and individual sound receiving points are graphically output on a same figure screen. As a result, minimum necessary height and extension of the sound insulating material are calculated for the target noise level.SELECTED DRAWING: Figure 3
【課題】受音点における騒音レベルを目標値とするために最小限必要な遮音材の任意形状のサイズを求めることが可能な遮音材サイズ算定装置の提供。【解決手段】遮音材サイズ算定装置は、最初に、目標騒音レベルに基づき、受音点における目標騒音補正量を設定する。次いで、設定された目標騒音補正量に対し、遮音材上下左右端辺で回折する二次元回折行路の行路差を求め、それら行路差から遮音材の位置及びサイズを算出し、この位置及びサイズの遮音材に対し三次元最短回折行路による音響レベル演算から騒音補正量を演算する、という操作を目標騒音補正量に達するまで繰り返す。最後に、各騒音点及び各受音点の組に対し算出された遮音材の位置及びサイズを同一図画面上に図画出力する。これにより目標騒音レベルに対して必要最小限な遮音材の高さ及び延長が算出される。【選択図】図３
SOUND-INSULATION-MATERIAL SIZE CALCULATION DEVICE AND SOUND-INSULATION-MATERIAL SIZE CALCULATION PROGRAM
遮音材サイズ算定装置及び遮音材サイズ算定プログラム
HORIE KENJI (author)
2018-12-27
Patent
Electronic Resource
Japanese
IPC:
G06F
ELECTRIC DIGITAL DATA PROCESSING
,
Elektrische digitale Datenverarbeitung
/
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
/
G01H
MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
,
Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen
Sound insulation material and method for producing sound insulation material
| European Patent Office | 2025