Noise mechanisms in motorcycle helmet noise

Engineering

• Measurement 100%
• Surfaces 50%
• Frequency Range 50%
• Harmful Effect 50%
• Acoustics 50%
• Test Road 50%
• External Pressure 50%
• Internal Pressure 50%
• Mechanisms 50%
• External Environment 50%
• Coherent Structure 50%
• Insertion Loss 50%

Physics

• Turbulent Flow 100%
• Hearing 50%
• Acoustics 50%
• Global Positioning System 50%
• Variations 50%
• Frequency Ranges 50%
• Speed 50%
• Ear 50%
• Pressure 50%