Raschet plastin chislenno-analiticheskim metodom granichnykh elementov: Ortotropnye i rebristye plastiny (Russian Edition)

Privodyatsya obshchie svedeniya o novom metode rascheta konstruktsiy - chislenno-analiticheskom metode granichnykh elementov. Privlekatel"nost" metoda obuslovlena ryadom prichin. Diskretizatsiya tol"ko granitsy oblasti, zanimaemoy ob"ektom, rezko umen"shaet poryadok sistemy razreshayushchikh uravneniy; est" vozmozhnost" snizheniya mernosti reshaemoy zadachi. Metod strogo obosnovan matematicheski, t.k. ispol"zuet fundamental"nye resheniya differentsial"nykh uravneniy, a, znachit, v ramkakh prinimaemykh gipotez pozvolyaet poluchit" tochnye znacheniya parametrov zadachi (usiliy, peremeshcheniy, napryazheniy, tokov, chastot sobstvennykh kolebaniy, kriticheskikh sil poteri ustoychivosti i t.d.) vnutri oblasti. Sleduet otmetit" takzhe prostotu logiki algoritma, khoroshuyu skhodimost" resheniya, vysokuyu ustoychivost" i maloe nakoplenie pogreshnostey pri chislennykh operatsiyakh. Sushchnost" metoda sostoit v pervonachal"noy diskretizatsii lineynoy sistemy na prosteyshie moduli. Posle analiza sostoyaniya vsekh moduley sistemy vypolnyaetsya ikh sintez i obratnyy perekhod k rassmatrivaemoy sisteme. V knige na osnove ukazannogo metoda resheny zadachi ob izgibe ortotropnykh i rebristykh plastin.