О ФОРМИРОВАНИИ РАСЧЕТНЫХ СХЕМ ГРУППОВЫХ ПРИЦЕЛЬНЫХ КИНЕМАТИЧЕСКИХ УСТРОЙСТВ ДЛЯ НЕКОТОРЫХ УПРУГИХ СИСТЕМ
О ФОРМИРОВАНИИ РАСЧЕТНЫХ СХЕМ ГРУППОВЫХ ПРИЦЕЛЬНЫХ КИНЕМАТИЧЕСКИХ УСТРОЙСТВ ДЛЯ НЕКОТОРЫХ УПРУГИХ СИСТЕМ
DOI:
https://doi.org/10.22337/2587-9618-2025-21-4-215-228Ключевые слова:
частота собственных колебаний, форма собственных колебаний, отдельная прицельное кинематическое устройство, групповое прицельное кинематическое устройство, коэффициенты дополнительных инерционных силАннотация
Для некоторых упругих систем с конечным числом степеней свободы масс, у которых направления движения масс параллельны, разработаны методы создания дополнительных кинематических устройств, введение каждого из которых прицельно уменьшает величину только одной собственной частоты до заданного значения, не изменяет при этом ни одну из остальных собственных частот и ни одну из форм собственных колебаний. Если необходимо прицельно уменьшить величины нескольких собственных частот, то это требование можно реализовать созданием соответствующего количества отдельных прицельных кинематических устройств. Расчётная схема каждого из отдельных прицельных устройств должна включать стойки, установленные в узлах приложения масс и направленные по траектории их движения. В некоторых случаях отдельные прицельные связи могут автономно устанавливаться в исходной системе. В большинстве случаев на основе отдельных прицельных кинематических устройств формируется расчётная схема единого группового прицельного устройства, которое уменьшает все намеченные частоты до заданных значений, не изменяя при этом ни одну из остальных собственных частот и ни одну из форм собственных колебаний. В данной статье рассмотрен способ формирования матрицы коэффициентов дополнительных инерционных сил, которой соответствует групповое прицельное кинематическое устройство. Предложен алгоритм формирования групповых прицельных кинематических устройств. Первичная пробация (тестирование) алгоритма была реализована с использованием программных продуктов “SCAD” и «Лира».
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