DOI: https://doi.org/10.32515/2664-262X.2022.5(36).1.244-255

Influence of Constructive and Operational Factors on Stability of Movement of a Road Train with the Trailer of the O1 Category

Volodymyr Sakhno, Svitlana Sharay, Igor Murovany, Vasyl Onyshchuk,Igor Chovcha

About the Authors

Volodymyr Sakhno, Professor, Doctor in Technics (Doctor of Technics Sciences), National Transport University, Kyiv, Ukraine, ORCID ID: 0000-0002-5144-7131

Svitlana Sharay, Associate Professor, PhD in Technics (Candidate of Technics Sciences), National Transport University, Kyiv, Ukraine

Igor Murovany, Associate Professor, PhD in Technics (Candidate of Technics Sciences), Lutsk National Technical University, Lutsk, Ukraine, ORCID ID: 0000-0002-9749-980X7

Vasyl Onyshchuk, Associate Professor, PhD in Technics (Candidate of Technics Sciences), Lutsk National Technical University, Lutsk, Ukraine, ORCID ID: 0000-0002-5316-408X

Igor Chovcha, teacher, Separate structural subdivision “Kyiv Transport and Economic Vocational College of the National Transport University”, Kyiv, Ukraine, ORCID ID: 0000-0002-7299-8063

Abstract

The issues of stability and controllability of cars and road trains (ATZ) in connection with their practical importance have been studied by many researchers. If the issues of transportation of bulky goods are studied well enough, then for the transportation of light cargo, which uses low-capacity road trains with simple single- or two-axle trailers, the issues of stability are not fully studied. Recommendations for changing the design parameters to improve a particular type of stability are different and sometimes contradict the requirements for other performance of the car, in particular, its smoothness and passability. Qualitative assessment of stability is performed on the basis of the general theory of stability of motion AM Lyapunov. Steady motion according to Lyapunov is realized in a previously unknown region of initial perturbations, which are called the region of attraction of undisturbed motion. There is a problem of defining the boundaries of this area. To solve it, the system of equations of plane-parallel motion of a road train with a trailer of category O1 was improved, from which the critical speed of rectilinear motion and the rate of oscillation instability were determined, and the factors influencing its numerical value were analyzed. The analysis of calculations showed that in the event of perturbation at speeds up to 31 m / s (30.8 m / s) the nature of changes in the lateral and angular velocities of the traction vehicle during the transient process is extinguished. Under the same conditions, when the velocity increases above 31 m / s (31.5 m / s), the nature of the change in lateral and angular velocities also fades, but there are fluctuations. At increase in speed to 32 m / s fluctuations of parameters of movement will be divergent that will lead to loss of stability and impossibility of the further movement. This movement should be considered unstable, which should be avoided. The stability of motion can be judged to a greater extent by the magnitude of the lateral accelerations acting in the center of mass of the individual links. The stability of the road train under consideration at nominal parameters of loading, air pressure in tires of all wheels, symmetrical loading of the trailer, loading on the traction coupling device within 500 N is provided, in particular critical speed of rectilinear movement made 33,97 m / s. oscillating instability 31.5 m / s), which is much higher than the normalized value of the maximum speed for road trains with trailers of category O1 (25 m / s), the maximum lateral acceleration when performing maneuvers such as circular motion, steering wheel jerk and "shift" is not exceeded the maximum allowable 0.45g.

Keywords

road train, stability of road train, lateral and angular speed, critical speed

Full Text:

PDF

References

1. Volgin, V. (2005). Pritsepy k legkovym avtomobilyam [Trailers for cars]. Moskow: Astrel' [in Russian].

2. Sakhno, V., Kuznyetsov, R., Stelmashchuk, V. & Kozachuk, L. (2014). Do vyznachennya pokaznykiv stiykosti avtopoyizda katehoriyi M1 u perekhidnykh rezhymakh rukhu [To determine the stability of the M1 category train in transient modes of movement] . Suchasni tekhnolohiyi v mashynobuduvanni i transporti: nauk. zhurnal – Advances in Mechanical Engineering and Transport, Vol.2, 123-128 [in Ukrainan].

3. Sakhno, V., Stelmashchuk, V. & Pazyn, R. (2018). Vyznachennya parametriv stiykosti avtopoyizda z prychepom katehoriyi [Determination of stability parameters of a road train with a category trailer] . Systemy і srodki transportu samochodowego. Wybrane zagadnienia, Seria: Transport. Rzeszow, pp. 93–102 [in Ukrainan].

4. Antonov, D. (1984). Raschet ustoychivosti dvizheniya mnogoosnykh avtomobiley [Calculation of motion stability of multi-axle vehicles] . Moskow: Mashinostroyeniye [in Russian].

5. Aksenov, P. (1989). Mnogoosnyye avtomobili [Multi-axle vehicles] . Moskow: Mashinostroyeniye [in Russian].

6. Vlasko, Yu. & Khachaturov, A. (1970). Issledovaniye upravlyayemosti av-topoyezda [Investigation of controllability of a car-top train] . Moskow: Transport [in Russian].

7. Rokar, I. (1959). Neustoychivost' v mekhanike [Instability in Mechanics Automobiles]. Airplanes. Suspension Bridges (Moscow: IL) [in Russian].

8. Kozachuk, L. (2014). Do vyznachennya stiykosti rukhu avtopoyizda katehoriyi M1 [Before determining the stability of the M1 category train]. Visnyk ZHDTU. Seriya "Tekhnichni nauky" – The Journal of ZSTU / Engineering, (2(69), 121–128. Retrieved from https://doi.org/10.26642/tn-2014-2(69)-121-128 [in Ukrainan].

9. Dobrin, A. & Dul'tsev, V. (1968). Ob ustoychivosti dvizheniya mnogoosnykh avtomobiley otnositel'no zadannoy trayektorii [On the stability of motion of multi-axle vehicles relative to a given trajectory] . Trudy seminara po ustoychivosti i upravlyayemosti avtomobiley – Proceedings of the seminar on the stability and handling of vehicles, Vol. 2, 27 – 39. [in Russian].

10. Lyust, V. (1969). Razrabotka metodov rascheta parametrov ustoychivosti pryamolineynogo dvizheniya trekhosnykh avtomobiley [Development of methods for calculating the stability parameters of rectilinear motion of three-axle vehicles]. Extended abstract of Doctor's thesis. Moskow [in Russian].

11. Verbitskiy, V., Sakhno, V., Kravchenko, A., Kostenko A. & Danilenko, A. (2013). Avtomobili. Ustoychivost'[Cars. Stability] . Lugansk: Izd-vo «Noulidzh» [in Russian].

12. Kuznyetsov, R. (2007). Pokrashchannya pokaznykiv stiykosti trylankovykh avtopoyizdiv u hranychnykh rezhymakh rukhu [Improvement of indicators of stability of three-link road trains in boundary modes of movement] . Candidate's thesis. Kiev [in Ukrainan].

13. Timkov, O. (2005). Polipshennya pokaznykiv manevrenosti ta stiykosti avtopoyizdiv z nablyzhenymy osyamy prychepa [Improving the maneuverability and stability of road trains with approximate axles of the trailer] . Candidate's thesis. Kiev [in Ukrainan].

GOST Style Citations

  1. Волгин В.В. Прицепы к легковым автомобилям. М.: Астрель, 2005. 89 с.
  2. До визначення показників стійкості автопоїзда категорії М1 у перехідних режимах руху /В.П.Сахно, Р.М.Кузнєцов, В.В.Стельмащук, Л.С.Козачук . Сучасні технології в машинобудуванні та транспорті: наук. журнал. Луцьк: Луцький НТУ. 2014. №2. С.123-128.
  3. Сахно В.П., Стельмащук В.В., Пазін Р.В. Визначення параметрів стійкості автопоїзда з причепом категорії О2 . Systemy і srodki transportu samochodowego. Wybrane zagadnienia. Monografia nrх, Seria: Transport. Rzeszow, 2018 . С. 93–102.
  4. Антонов Д.А. Расчет устойчивости движения многоосных автомобилей . М.: Машиностроение, 1984. 164 с.
  5. Аксенов П.В. Многоосные автомобили . М.: Машиностроение, 1989. 279с.
  6. Власко Ю.М., Хачатуров А.А. Исследование управляемости автопоезда . М.: Транспорт, 1970. 57 с.
  7. Рокар И. Неустойчивость в механике . M.: изд-во иностр. лит., 1959. 317 с.
  8. Козачук Л.С. До визначення стійкості руху автопоїзда категорії М1 . Вісник Житомирського державного технологічного університету. Серія : Технічні науки. 2014. № 2. С. 121-128 С.
  9. Добрин А.С. Дульцев В.С. Об устойчивости движения многоосных автомобилей относительно заданной траектории . Труды семинара по устойчивости и управляемости автомобилей . 1968. Вып. 2. С. 27 – 39.
  10. Люст В.Я. Разработка методов расчета параметров устойчивости прямолинейного движения трехосных автомобилей: автореф. дис на здобуття наук. ступеня канд. техн. наук. М., 1969. 23 с.
  11. Автомобили. Устойчивость: монография / В.Г.Вербицкий, В.П.Сахно, А.П. Кравченко, А.В.Костенко, А.Э.Даниленко. Луганск: Изд-во «Ноулидж», 2013. 176 с.
  12. Кузнєцов Р. М. Покращання показників стійкості триланкових автопоїздів у граничних режимах руху : дис. … канд. техн. наук : 05.22.02 / Національний транспортний ун-т. Київ, 2007 . 176 с.
  13. Тімков О.М.. Поліпшення показників маневреності та стійкості автопоїздів з наближеними осями причепа : дис. … канд. техн. наук : 05.22.02 / Національний транспортний ун-т . Київ, 2005 . 175 с.
Copyright (c) 2022 Volodymyr Sakhno, Svitlana Sharay, Igor Murovany, Vasyl Onyshchuk,Igor Chovcha