1. Dampening of vibrations of piston-type compressor units
- Subjects
ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ñ ÑиÑÑем ,конеÑное ÑиÑло ÑÑепеней ÑÐ²Ð¾Ð±Ð¾Ð´Ñ ,oscillation theory ,ваÑиаÑионнÑй меÑод ,variational method ,calculation of oscillations ,damping of oscillations ,ÑеоÑÐ¸Ñ ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ð¹ ,гаÑиÑели колебаний ,ÑаÑÑÑÑа колебаний ,finite number of degrees of freedom ,oscillations of systems ,theory of rods ,гаÑение колебаний ,ÑеоÑÐ¸Ñ ÑÑеÑжней ,vibration dampers - Abstract
Тема вÑпÑÑкной квалиÑикаÑионной ÑабоÑÑ: «ÐаÑение вибÑаÑий компÑеÑÑоÑнÑÑ ÑÑÑановок поÑÑневого Ñипа».ÐÐ°Ð½Ð½Ð°Ñ ÑабоÑа поÑвÑÑена ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ Ð¸ пÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð¼Ð°ÑемаÑиÑеÑкой модели, опиÑÑваÑÑей вибÑаÑии компÑеÑÑоÑной ÑÑÑановки поÑÑневого Ñипа, Ð´Ð»Ñ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¾Ð¿ÑималÑного Ð¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð³Ð°ÑиÑелÑ. РаÑÑÑиÑÑваÑÑÑÑ ÑобÑÑвеннÑе ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ñ Ð³Ð°ÑиÑелÑ, пÑо ÑÑом иÑполÑзÑеÑÑÑ Ð²Ð°ÑиаÑионнÑй Ð¿Ð¾Ð´Ñ Ð¾Ð´, оÑнованнÑй на ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ ÐагÑанжа 2-го Ñода. ÐÑи ÑоÑÑавлении вÑÑажениÑ, аппÑокÑимиÑÑÑÑего пÑÐ¾Ð³Ð¸Ð±Ñ Ð³Ð°ÑиÑелÑ, пÑинимаеÑÑÑ Ð¿Ñедположение, ÑÑо гаÑиÑÐµÐ»Ñ ÑовеÑÑÐ°ÐµÑ ÑолÑко изгибнÑе колебаниÑ. РаÑÑÑиÑÑваÑÑÑÑ Ð²ÑнÑжденнÑе ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ñ ÑÑÑановки Ñ Ð³Ð°ÑиÑелем.Ð Ñ Ð¾Ð´Ðµ иÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑеÑалиÑÑ ÑледÑÑÑие задаÑи:1. РазÑабоÑка модели гаÑиÑÐµÐ»Ñ Ñ Ð¸ÑполÑзованием ÑеоÑии ÑÑеÑжней;2. РаÑÑÑÑ ÑвободнÑÑ ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ð¹ гаÑиÑелÑ;3. СоÑÑавление ÑиÑÑÐµÐ¼Ñ Ð´Ð¸ÑÑеÑенÑиалÑнÑÑ ÑÑавнений Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ñ ÑÑÑановки Ñ Ð³Ð°ÑиÑелÑми;4. РаÑÑÑÑ Ð²ÑнÑжденнÑÑ ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ð¹;5. ÐÑÐ±Ð¾Ñ Ð¾Ð¿ÑималÑного ÑаÑÐ¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð³Ð°ÑиÑелÑ.Ð ÑезÑлÑÑаÑе иÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾Ð»ÑÑено вÑÑажение, опиÑÑваÑÑее амплиÑÑÐ´Ñ Ð²ÑнÑжденнÑÑ ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ð¹ ÑенÑÑа маÑÑ ÐºÐ¾Ð½ÑÑÑÑкÑии, Ð½ÐµÐ¾Ð±Ñ Ð¾Ð´Ð¸Ð¼Ð¾Ðµ Ð´Ð»Ñ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¾Ð¿ÑималÑного Ð¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð³Ð°ÑиÑелÑ., The theme of the final qualifying work: «Dampening of vibrations of piston-type compressor units».This work is devoted to the creation and application of a mathematical model that describes the vibrations of a piston-type compressor unit in order to determine the optimal position of the vibration damper. Damper eigenoscillations are calculated using a variational approach based on the Lagrange equation of the 2nd kind. When compiling an expression approximating the damper deflections, it is assumed that the damper performs only bending vibrations. The forced vibrations of the installation with a damper are calculated.During the study, the following tasks were solved:1. Development of a damper model using the theory of rods;2. Calculation of free oscillations of the damper;3. Compilation of a system of differential equations for the motion of an installation with dampers;4. Calculation of forced oscillations;5. Choice of optimal arrangement of the damper.As a result of the study, an expression was obtained that describes the amplitude of forced oscillations of the center of mass of the structure, which is necessary to determine the optimal position of the damper.
- Published
- 2022
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