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Консультация № 193656
07.10.2018, 15:09
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Здравствуйте! У меня возникли сложности с таким вопросом по теоретической механике:
В двигателе внутреннего сгорания площадь поршня равна 200 см^2, длин шатуна AB=30 см, длина кривошипа ВС = 6 см.Давление газа в данный момент в поршне равно P1=10 кГ/см^2, перед поршнем P2=2кГ/см^2.Найти силу T, действующую со стороны шатуна AB на кривошип BC, вызванную перепадом давлений газа, если угол ABC=90 градусов.Трением между поршнем и цилиндром пренебречь.
Рисунок к задаче представлен ниже.
В двигателе внутреннего сгорания площадь поршня равна 200 см^2, длин шатуна AB=30 см, длина кривошипа ВС = 6 см.Давление газа в данный момент в поршне равно P1=10 кГ/см^2, перед поршнем P2=2кГ/см^2.Найти силу T, действующую со стороны шатуна AB на кривошип BC, вызванную перепадом давлений газа, если угол ABC=90 градусов.Трением между поршнем и цилиндром пренебречь.
Рисунок к задаче представлен ниже.
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Обсуждение
08.10.2018, 07:21
общий
08.10.2018, 07:22
Адресаты:
Непонятно, что значит "давление в поршне", и соответственно "давление перед поршнем" - это где? 
Может быть р1 - это давление в цилиндре над поршнем, тогда давление р2 - под поршнем.
Уточните у преподавателя.
Может быть р1 - это давление в цилиндре над поршнем, тогда давление р2 - под поршнем.
Уточните у преподавателя.
Об авторе:
С уважением
shvetski
С уважением
shvetski
09.10.2018, 18:22
общий
09.10.2018, 18:24
Konstantin Непонятно, что значит "давление в поршне", и соответственно "давление перед поршнем" - это где? smile
Может быть р1 - это давление в цилиндре над поршнем, тогда давление р2 - под поршнем.
Уточните у преподавателя.
Прикрепленные файлы:
09.10.2018, 19:32
общий
Адресаты:
Легче не стало
"За поршнем" в понимании на русском языке - "Дальше, чем поршень", т.е. здесь это будет означать за экраном монитора, соответственно "перед поршнем" - перед экраном, ближе, чем экран монитора. В этом случае задача не решается - нет данных.
Об авторе:
С уважением
shvetski
С уважением
shvetski
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