NUST Institutions Library Catalogue

The acoustic measurements of tractor engine valve train plays a crucial role in understanding
the operational behavior and performance of these essential components. Valves and their
associated systems are critical for the proper functioning of an engine, and any deviations from
optimal conditions can result in reduced efficiency, increased fuel consumption, and potential
engine damage. Therefore, accurate and reliable acoustic measurements provide valuable
insights into the valve train dynamics and aid in identifying potential issues early on. This
research aims to investigate the measurement of acoustic emission in an engine valve train using
the Norsonic Acoustic Array 848a. The acoustic array is a powerful tool for capturing and
visualizing sound sources, allowing for detailed analysis of the valve train performance. This
study presents the methodology employed, including data collection, analysis, and
interpretation. Calculations and observations are discussed, leading to valuable insights into the
condition of the valve train components. The results contribute to a better understanding of the
acoustic emission in engine valve trains and provide recommendations for maintenance and
improvement. This abstract presents an overview of the acoustic measurements conducted on
tractor engine valve trains. The primary objectives of such measurements are to analyze the
sound characteristics generated during valve train operation, assess the performance of
individual components, and detect any irregularities or abnormalities. To achieve these goals,
various acoustic measurement techniques are employed, including sound pressure level (SPL)
measurements, sound intensity analysis, and vibration measurements. SPL measurements
involve capturing the sound emitted by the valve train during its operation using microphones
strategically placed near the engine components. These measurements allow the determination
of the sound power levels and frequency spectra associated with the valve train, providing
valuable information about its operating conditions. Additionally, sound intensity analysis
allows for the identification of specific sound sources and their spatial distribution within the
valve train assembly.