TY - JOUR AU - Lukianov, Petro Volodymyrovich PY - 2020/10/22 Y2 - 2024/03/28 TI - Modeling transient vibration-sound generation processes JF - Modeling, Control and Information Technologies: Proceedings of International scientific and practical conference JA - MCIT VL - 0 IS - 4 SE - Mathematical modelling and computational methods DO - 10.31713/MCIT.2020.03 UR - https://itconfdoc.nuwm.edu.ua/index.php/ITConf/article/view/112 SP - 39-42 AB - <p><strong>In this paper, a problem of sound generation of two-blade rotor sinusoidal shape during helicopter landing is solved. Near and far sound field characteristics have been calculated. A comparative analysis of obtained numerical results with results for Mach number <em>0.2&lt;M&lt;0.4</em> is given. In particular noticed, that for a low Mach’s number <em>M&lt;0.1</em> transitional mode can occurs, which produces a blade flutter as a result.</strong></p> ER -