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Showing 1 to 8 of 8 for “"Structure-Borne Noise"”.
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Structure Borne Noise Analysis Using Helmholtz Equation Least Squares Based Forced Vibro Acoustic Components
<p>This dissertation presents a structure-borne noise analysis technology that is focused on providing a cost-effective noise reduction strategy. Structure-borne sound is generated or transmitted through structural vibration; however, only a small portion of the vibration can effectively produce …
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Investigating the feasibility of using dynamic stiffness beam functions in a hybrid structure-borne noise prediction model
Ground-borne vibration and structure-borne noise in buildings associated with nearby railway systems, either above ground or underground, is a common occurrence indensely populated areas. This is especially true where new transportation systems are built in proximity to existing noise and vibration …
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Structure-Borne Vehicle Interior Noise Estimation Using Accelerometer Based Intelligent Tires in Passenger Vehicles
… are becoming quieter than ever before. But noise levels remain a significant concern for both passengers and automotive manufacturers. The vehicle's interior noise can affect the overall driving experience and even the safety of the driver and the passengers. The two main sources of vehicle …
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Active noise control in a luxury vehicle
Structure-borne road noise is a critical sound attribute for the overall Noise Vibration& Harshness (NVH) performance of modern luxury vehicles. Currentpassive NVH solutions require structural design modifications, in order to controllow frequency sources that cause structure-borne noise. Active …
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Characterization of Structure-Borne Tire Noise Using Virtual Sensing
… have been made to the vehicle (reduced engine noise, reducedaerodynamic related NVH), have resulted in tire road noise as the dominant source of thevehicle interior noise. Generally, vehicle interior noise has two main sources, 1) travellinglow frequency excitation below 800 Hz from road …
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Operational Modal Analysis of Rolling Tire: A Tire Cavity Accelerometer Mediated Approach
The low frequency (0-500 Hz) automotive noise and vibration behavior is influenced by the rolling dynamics of the tire. Driven by pressing environmental concerns, the automotive industry has strived to innovate fuel-efficient and quieter powertrain systems over the last decade. This has eventually …
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Computational Modal Analysis Of A Half-Scale Business Jet Fuselage Tail Section
In aircraft, acoustic noise and structural vibrations are critical aspects of what determines the comfort of passengers throughout the duration of their trip. As such, there is great value in being able to reduce noise and the structural vibrations that cause noise to improve the quality of the …
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An Experimental Evaluation of the Application of Smart Damping Materials for Reducing Structural Noise and Vibrations
… smart damping materials for reducing structural noise and vibrations. The primary purposes of this study are to: 1. Explore the feasibility of smart damping materials, such as piezoelectric materials, for augmenting and improving the noise and vibration benefits of passive damping materials, and …