
Статья посвящена вопросам изучения внутреннего трения в натуральной древесине лиственницы. Использование метода свободно затухающих изгибных колебаний обеспечило сравнительное изучение поведения логарифмического декремента затуханий в зависимости от усилия изгиба в рабочем интервале от 10 до 50 Н для образцов модифицированной древесины с дефектом трещины и без нее. Величина внутреннего трения для образцов с дефектом трещины в среднем на 8−9 % меньше, чем без дефектов. The article is devoted to the study of internal friction in natural larch wood. The use of the method of freely damped bending vibrations provided a comparative study of the behavior of the logarithmic damping decrement depending on the bending force in the operating range from 10 to 50 N for samples of modified wood with and without a crack defect. The value of internal friction for samples with a crack defect is on average 8−9 % less than without defects.
INTERNAL FRICTION, ЛОГАРИФМИЧЕСКИЙ ДЕКРЕМЕНТ ЗАТУХАНИЯ, LOGARITHMIC DAMPING DECREMENT, ДЕФЕКТЫ ДРЕВЕСИНЫ, NATURAL LARCH WOOD, WOOD DEFECTS, НАТУРАЛЬНАЯ ДРЕВЕСИНА ЛИСТВЕННИЦЫ, ВНУТРЕННЕЕ ТРЕНИЕ
INTERNAL FRICTION, ЛОГАРИФМИЧЕСКИЙ ДЕКРЕМЕНТ ЗАТУХАНИЯ, LOGARITHMIC DAMPING DECREMENT, ДЕФЕКТЫ ДРЕВЕСИНЫ, NATURAL LARCH WOOD, WOOD DEFECTS, НАТУРАЛЬНАЯ ДРЕВЕСИНА ЛИСТВЕННИЦЫ, ВНУТРЕННЕЕ ТРЕНИЕ
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