Voronezh, Voronezh, Russian Federation
Stat'ya posvyaschena issledovaniyu processa vzaimodeystviya uprugo zakreplennyh pochvoobrabatyvayuschih rabochih organov i prepyatstviy sredstvami komp'yuternyh prilozheniy, modeliruyuschih dinamiku dvizheniya 3d-modeley (MDB), sozdannyh v srede SAPR. Opisyvaetsya konstrukciya virtual'nogo stenda i dinamometricheskogo bloka, realizovannaya v srede SAPR SolidWorks i prilozhenii dlya modelirovaniya dinamiki dvizheniya SolidWorks Motion. Virtual'nyy stend pozvolyaet odnovremenno fiksirovat' vse sostavlyayuschie vektora tyagovogo soprotivleniya (Rx, Ry, Rz).Kak primer ispol'zovaniya virtual'nogo stendaprivodyatsya izmerennye ob'emnye silovye harakteristiki processa preodoleniya pnya sekciey modul'nogo diskovogo kul'tivatora i sily, voznikayuschie na pruzhine predohranitel'nogo mehanizma. Takzhe dlya bolee detal'nogo issledovaniya silovyh harakteristik predohranitel'nogo mehanizma modelirovalsya process v'ezda rabochego organa na prepyatstvie klinovoy formy s ploskoy kontaktnoy poverhnost'yu i postoyannym uglom pod'ema. Eto dalo vozmozhnost' poluchit' silovye harakteristiki dvizheniya rabochih organov po gorizontal'noy poverhnosti prepyatstviy lyubyh dopustimyh vysot za odin eksperiment i ocenit' parametry predohranitel'nogo mehanizma. Dannye s uchastka neposredstvennogo vzaimodeystviya rabochego organa s prepyatstviem byli approksimirovany polinomom vtoroy stepeni, chto pozvolilo rasschitat' znacheniya sil pri razlichnyh vysotah prepyatstviya (0, 10, 20, 30, 40sm) i ustanovit' ih maksimumy: RXmax=1075,22N (vysota 10,42sm ) , RYmax=977,01N (vysota 13,75sm), RZmax=3876,45N (vysota 12,08sm). Poluchennye s primeneniem virtual'nogo stenda dannye mogut analizirovat'sya neposredstvenno v prilozhenii v rezhime real'nogo vremeni, libo vyvodit'sya v storonnie programmy gde proishodit ih okonchatel'naya obrabotka. V dal'neyshem oni mogut ispol'zovat'sya kak dlya optimizacii konstrukciy rabochih organov i predohranitel'nyh mehanizmov, tak i dlya dostovernoy imitacii vozmuscheniy pri modelirovanii rabochego processa mashinno-traktornogo agregata v celom.
mnogotel'naya dinamika, SAPR, prostranstvennoe dinamometrirovanie, pochvoobrabatyvayuschie rabochie organy, prepyatstviya, vyrubka
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