Решения задач с разрывными условиями для волнового уравнения

Авторы

  • Виктор Иванович Корзюк Институт математики НАН Беларуси, ул. Сурганова, 11, 220072, г. Минск, Беларусь; Белорусский государственный университет, пр. Независимости, 4, 220030, г. Минск, Беларусь
  • Ян Вячеславович Рудько Институт математики НАН Беларуси, ул. Сурганова, 11, 220072, г. Минск, Беларусь
  • Владислав Владимирович Колячко Белорусский государственный университет, пр. Независимости, 4, 220030, г. Минск, Беларусь

Ключевые слова:

одномерное волновое уравнение, неоднородное уравнение, смешанная задача, разрывные начальные условия, разрывные граничные условия, продольный удар, метод характеристик, преобразование Лапласа
Поддерживающие организации
Работа выполнена при финансовой поддержке Министерства науки и высшего образования Российской Федерации в рамках реализации программы Московского центра фундаментальной и прикладной математики (соглашение № 075-15-2022-284) и Национальной академии наук Беларуси (договор № 2023-25-019).

Аннотация

Рассмотрены различные подходы к решению смешанных задач с разрывными условиями для волнового уравнения, основанные на функциональных и классических методах. Показаны отличия в решениях, которые соответствуют разным методам (преобразование Лапласа и метод характеристик) и определениям. Результаты продемонстрированы на одной смешанной задаче из теории механического удара о продольных колебаниях полубесконечного упругого стержня с разрывными начальными и граничными условиями. Модельным примером служит задача о колебаниях стержня после продольного удара в торец (в частности, после выстрела пластилиновой пулей, прилипающей к концу стержня).

Биографии авторов

  • Виктор Иванович Корзюк, Институт математики НАН Беларуси, ул. Сурганова, 11, 220072, г. Минск, Беларусь; Белорусский государственный университет, пр. Независимости, 4, 220030, г. Минск, Беларусь

    доктор физико-математических наук, академик НАН Беларуси, профессор; главный научный сотрудник отдела дифференциальных уравнений Института математики НАН Беларуси, профессор кафедры математической кибернетики механико-математического факультета Белорусского государственного университета

  • Ян Вячеславович Рудько, Институт математики НАН Беларуси, ул. Сурганова, 11, 220072, г. Минск, Беларусь

    младший научный сотрудник отдела дифференциальных уравнений

  • Владислав Владимирович Колячко, Белорусский государственный университет, пр. Независимости, 4, 220030, г. Минск, Беларусь

    ассистент кафедры системного анализа и компьютерного моделирования факультета радиофизики и компьютерных технологий

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Загрузки

Опубликован

2023-12-13

Выпуск

Раздел

Дифференциальные уравнения и оптимальное управление

Как цитировать

[1]
Корзюк, В.И. и др. 2023. Решения задач с разрывными условиями для волнового уравнения. Журнал Белорусского государственного университета. Математика. Информатика. 3 (дек. 2023), 6–18.