Flyover Noise Measurements of a Spiraling Noise Abatement Approach Procedure

Noise Abatement for Circular Saws

Characterizing acoustic shocks in high-performance jet aircraft flyover noise.

Acoustic shocks have been previously documented in high-amplitude jet noise, including both the near and far fields of military jet aircraft. However, previous investigations into the nature and formation of shocks have historically concentrated on stationary, ground run-up measurements, and previous attempts to connect full-scale ground run-up and flyover measurements have omitted the effect o...

Noise Abatement at Ben-Gurion International Airport

Ben-Gurion International Airport operates 24 hours at day for landing airplanes. The areas in vicinity of Ben-Gurion International Airport are very populated. The noise of the landing airplanes exceeds the common thresholds. This paper examines the current situation and suggests a possible solution.

Occupational noise-induced hearing loss prevalence and noise abatement techniques in a steel-making plant

Background: A high prevalence of noise-induced hearing loss (NIHL) is observed amongst employees in the steel manufacturing industry. Objective: To determine the prevalence of NIHL and current noise abatement techniques implemented at a steel manufacturing plant. Methods: Structured questionnaires were completed by permanent employees at a steel-manufacturing plant for the purpose of collecting...

Optimization of Departure Trajectory for Noise Abatement of Sensitive Locations

Adopting the noise abatement procedures(NAPs) is the common approach for abating the noise around airport for the international civil aviation. But there is only one or two procedures used in China. This paper first gives a preliminary model of optimizing the departure trajectory, which is one of the most important in the NAPs. Then it proposes two approaches with two algorithms respectively, t...