THEORETICAL STUDY ON VIBROACOUSTIC DYNAMICS OF SPLIT-TYPE SPINDLE HEADS

Galina Kadubovskaya; Aleksandr Chukarin

doi:doi:10.12737/6886

THEORETICAL STUDY ON VIBROACOUSTIC DYNAMICS OF SPLIT-TYPE SPINDLE HEADS

Published в Vestnik of Don State Technical University · Volume 14, Issue 4, 2014 · Pages 86–92 · Rubrics: Technical sciences

DOI 10.12737/6886

Received: 04.12.2014 Accepted: 13.02.2015 Published: 13.02.2015 Language of publication: RUS

Authors

Galina Kadubovskaya · Aleksandr Chukarin ²

2 Rostov State University of Means of Communication (professor)

ABSTRACT

Vibration and noise levels of the split-type spindle heads are theoretically investigated. It is noted that in this case, the head oscillating system changes and this leads to the need of modeling the vibroacoustic dynamics of these structures. The calculation of the noise and vibration spectra is based on the power balance method of the construction consisting of a system of rectangular plates where the vibration power flows from spindle bearings are transmitted. The appropriate calculations for spindle cases made of steel and cast iron are carried out. The following data are obtained. The propagation velocity of flexural waves of an iron spindle case is factor of 0.62 lower, its own oscillation frequency is factor of 0.78 lower, the vibration power absorption coefficient is 11.4 times larger, which leads to a significant reduction in noise levels. The investigation timeliness is proved by an extended application of split-type spindle heads in the production, particularly in lathe tools.

KEYWORDS

noise vibration spindle head split design lathe tools

Information Text References

Authors:

2. Rostov State University of Means of Communication (professor)

Type:

Article

Pages:

from 86 to 92

Status:

Published

Language:

Russian

Keywords:

noise, vibration, spindle head, split design, lathe tools

Text

Введение. Шум на рабочих местах операторов токарных станков является одним из наиболее распространенных неблагоприятных производственных факторов. С увеличением производительности, мощности и быстроходности современных токарных станков растет уровень вибрации и шума на рабочих местах. Интенсивным открытым источником шума, нередко превышающего санитарные нормы, является шпиндельная бабка. Находясь в непосредственной близости от оператора, она создает угрозу его здоровью и работоспособности, что в свою очередь влияет на производительность труда. Кроме того, шум является одним из важнейших комплексных показателей качества станков. По уровню шума можно судить в том числе о неточности изготовления и сборки деталей и узлов, а это важно для сохранения конкурентоспособности производства. Поэтому улучшение виброакустических характеристик является значимой научно-технической и экономической задачей.

References

1. Chukarin, A. N. Teoriya i metody akusticheskikh raschetov i proektirovaniya tekhnologicheskikh mashin dlya mekhanicheskoy obrabotki. [Theory and methods of acoustic analysis and design of technological machines for machining: monograph.] Rostov-on-Don : DSTU Publ. Centre, 2006, 152 p. (in Russian).

2. Shamshura, S. A., Shevtsov, S. N., Chukarin, A. N. Matematicheskaya model´ shumoobrazovaniya vibroudarnogo uprochneniya lonzheronov vertoletov. [Mathematical model of noise percussion reinforcement of helicopter spars.] Vestnik of DSTU, 2009, vol. 09, no. 2, pp. 217-223 (in Russian).

3. Chukarin, A. N., Shamshura, S. A. Modelirovanie vibratsiy akusticheskoy sistemy stendov pri dinamicheskikh ispytaniyakh. [Modeling of vibrations of acoustic tester system in dynamic tests.] Vestnik of DSTU, 2009, vol. 09, no. 3, pp. 427-433 (in Russian).

4. Finochenko, T. A., Chukarin, A. N. Eksperimental´nye issledovaniya shuma prutkovykh tokarnykh avtomatov. [Experimental research of rod turning machine noise.] Vestnik of DSTU, 2010, vol. 10, no. 2, pp. 234-238 (in Russian).

5. Tonshaff, H. K., Westphal, R. Noise reduction in circular sowing of metals. CIRP Annals, 1978, vol. 27, no. 1, pp. 339-343.

6. Rebel, I. Planung hydraulischer Analagen. CIRP Annals, 1984, no. 14, pp. 193 - 196.

7. Nikiforov, A. S. Akusticheskoe proektirovanie sudovykh konstruktsiy. Spravochnik. [Acoustic design of ship structures: handbook.] Leningrad : Sudostroenie, 1990, 200 p. (in Russian).

8. Spiridonov, V. M. Primenenie energeticheskogo metoda dlya rascheta urovney zvukovoy vibratsii. Bor´ba s shumom na sudakh. [Application of energy method to calculate the level of sound vibrations. Noise control on ships.] Leningrad : Sudostroenie, 1965,108 p. (in Russian).

9. Kolesnikov, I. V., Pronnikov, Y. V., Chukarin, A. N. Osnovy akusticheskogo proektirovaniya kabin mashinistov (teoriya i praktika). [Fundamentals of acoustic design engineer cab (theory and practice): mono-graph.] Rostov-on-Don : DSTU Publ. Centre, 2012, 120p. (in Russian).

10. Podust, S. F., Chukarin, A. N., Boguslavskiy, I. V. Osnovy vibroakusticheskikh raschetov otech-estvennykh elektrovozov. [Fundamentals of electric domestic vibroacoustic calculations: monograph.] Rostov-on-Don : DSTU Publ. Centre, 2013, 160 p. (in Russian).

Доступ и загрузка

🗂 JATS XML ❝ To cite 📎 Citations

—

Views

—

Downloads

Citations

Индексируется в

THEORETICAL STUDY ON VIBROACOUSTIC DYNAMICS OF SPLIT-TYPE SPINDLE HEADS

Confirmation

Регистрация