Engine noise, vibration, and harshness analysis at the design concept stage

Abstract

Vibration and noise are more common challenges in the automobile industry that arise from moving parts and gas pressure within engines. Excessive noise and vibration in an engine have major drawbacks which lead to premature component wear, reduced performance, environmental impact, and a negative image of the vehicle's quality on the customer perception. This research work was carried out for the prediction of vibration-based noise levels in a complete engine assembly during the design concept stage. Its uniqueness lies in its capacity to bypass the physical measurements for noise and vibration which allows for a comprehensive study of vibration and noise at the early conceptual stage that saves substantial time and cost. The methodology applied in this research work involves the detection and optimization of engine components for their potential for vibration and noise during their design phase by examining the complete engine assembly. This approach is beneficial in mitigating vibrations and enhancing overall component performance in the domain of noise.