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0420U102348,
Кандидат технічних наук
04-12-2020
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Improvement in maneuverability and stability of motion of an articulated urban bus of extra-large class
Misko Yevhen Mykhailovych,
popup.head Sakhno Volodymyr Prokhorovych
popup.opponent Makarov Volodymyr Andriiovych
popup.opponent Stelmashchuk Valerii Volodymyrovych
Дисертаційна робота присвячена вирішенню науково-технічної задачі щодо питання маневреності і стійкості руху зчленованого автобуса (у подальшому автопоїзда) з урахуванням можливого прикладання тягового зусилля до різних його осей, а також перерозподілу навантажень по бортам і осям автобуса і причіпної секції за різних варіантів їх завантаження пасажирами. За результатами теоретичних досліджень на математичних моделях різного ступеня складності було доведено вплив варіанту прикладання тягового зусилля або на другій осі автобуса, або на осі причіпної секції на параметри повороткості та складання автопоїзда. Запропоновано методику ідентифікації жорсткісних та демпфуючих властивостей підвіски коліс автобуса і причіпної секції. На основі отриманих параметрів була створена математична модель коливання колеса з урахуванням відповідних дисипацій, що в свою чергу дозволило удосконалити двоколійну математичну модель руху автопоїзда до просторової, з урахуванням вертикальних коливань коліс усіх його осей. Це дало можливість врахувати зміну вертикальних навантажень зі зміною бічних сил відведення і їх вплив на зміну повороткості автопоїзда. За результатами проведених експериментальних досліджень встановлено, що запропонована просторова математична модель відповідає характеру руху реального автопоїзда.
2020-12-23
2020-12-23
Updated: 2025-12-05
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