Field Measurement Values of Steady Running Heavy Vehicles’ Mass, Velocity and A-weighted Sound Power Level


The quantitative relationship of the A-weighted sound power of running road vehicles with vehicle category, running condition, and velocity has already been clarified. But its relationship with mass has not been shown. The authors have analyzed the measured values of mass, velocity, and A-weighted sound pressure of 420 heavy vehicles on public roads to calculate an equation in which the A-weighted sound power of a vehicle running constantly is proportional to the 3 power of its velocity and to the 0.5 power of its mass.自動車走行のA 特性音響パワーレベルは,車種,走行状態,および速度との定量的な関係が明らかにされているが,質量との関係は明らかでない.著者らは公道を定常走行する420 台の大型車の質量,速度,および音圧(A 特性)の測定値を分析し,音響出力(A 特性)が質量の0.5 乗,速度の3 乗に比例する式を算定した.


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  • Accession Number: 01666810
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: Jan 31 2018 3:23PM