International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The study of the acoustic properties of a pipeline section was conducted in accordance with standards regulating acoustic emission testing of pressure vessels and related activities. To achieve this objective, an experiment was performed to emit acoustic signals on the surface of the pipeline section. Based on the test results and assessment, corrective measures were prescribed to restore the pipeline to optimal operational condition. A multi-channel acoustic system was utilized to carry out the tests on the pipeline section.

An important aspect in organizing acoustic emission monitoring is the analysis of recorded data and selecting useful information. Despite noise suppression using frequency methods, its quantity in the recorded information can reach 99% because the process of degradation during operation typically progresses slowly, whereas the presence of acoustic noise is an inherent attribute of the technological process.
Noise suppression after data recording is carried out within the framework of the monitoring system’s software, although filtering algorithms may be specific to each application.

The probability of flying safely in an adverse event situation is related to the probability of being hit and surviving it. Assessing the hazard of adverse events is an important task in aviation accident prevention. The correct quantitative determination of the potential danger of an event allows timely and targeted development of preventive measures: the introduction of new or improvement of old technology, training in actions under certain conditions, etc.

The article proposes a method of assessing the quality of multi-pass weld by acoustic emission. The AE method involves the identification of developing defects at the stage of stress changes in the material, as well as in the statically loaded state. In the process of control two independent data collection systems were used, which worked in the process of testing synchronously. The selected method of control of the object has a number of advantages over other methods of NDT.

The article proposes a method of assessing the quality of multi-pass weld by acoustic emission. The AE method involves the identification of developing defects at the stage of stress changes in the material, as well as in the statically loaded state. In the process of control two independent data collection systems were used, which worked in the process of testing synchronously. The selected method of control of the object has a number of advantages over other methods of NDT.