A matsayin tsarin watsawa, ana amfani da kayan aiki na duniya sosai a cikin ayyukan injiniya daban-daban, kamar masu rage gear, crane, mai rage gear duniya, da sauransu. Saboda tsarin watsa kayan aiki shine tuntuɓar layi, dogon lokaci meshing zai haifar da gazawar kayan aiki, don haka ya zama dole a kwaikwayi ƙarfinsa. Li Hongli et al. yayi amfani da hanyar haɗakarwa ta atomatik don ragargaza kayan aikin duniya, kuma an sami cewa karfin juzu'i da matsakaicin matsakaicin layi ne. Wang Yanjun et al. Har ila yau, ya rikitar da kayan aikin duniya ta hanyar tsarin tsara ta atomatik, kuma ya kwaikwayi statistics da simulation na kayan aikin duniya. A cikin wannan takarda, ana amfani da abubuwan tetrahedron da hexahedron don rarraba raga, kuma ana nazarin sakamakon ƙarshe don ganin ko an cika yanayin ƙarfin.

1. Samfurin kafa da kuma sakamakon bincike

Tsarin tsari mai girma uku na kayan duniya

Planetary kayayafi kunshi kayan zobe, kayan rana da kayan duniya. Babban sigogin da aka zaɓa a cikin wannan takarda sune: adadin haƙoran zoben gear na ciki shine 66, adadin haƙoran kayan aikin rana shine 36, adadin haƙoran na'urorin duniya 15, diamita na waje na kayan ciki. zobe shine 150 mm, modulus shine 2 mm, kusurwar matsa lamba shine 20 °, faɗin haƙori shine 20 mm, madaidaicin tsayin ƙarar shine 1, madaidaicin baya shine 0.25, kuma akwai gears na duniya guda uku.

Binciken kwaikwaiyo a tsaye na kayan aikin duniya

Ƙayyade kaddarorin kayan aiki: shigo da tsarin gear duniya mai girma uku da aka zana a cikin software na UG zuwa ANSYS, kuma saita sigogin kayan, kamar yadda aka nuna a cikin Tebura 1 da ke ƙasa:

Meshing: Ƙarshen raƙuman raƙuman ruwa yana rarraba ta tetrahedron da hexahedron, kuma ainihin girman kashi shine 5mm. Tun dagaabin duniya kaya, kayan aikin rana da zoben kaya na ciki suna cikin hulɗa da raga, ragar raga na lamba da sassan raga suna da yawa, kuma girman shine 2mm. Na farko, ana amfani da grid tetrahedral, kamar yadda aka nuna a cikin Hoto 1. An samar da abubuwa 105906 da nodes 177893 gaba ɗaya. Sa'an nan kuma an karɓi hexahedral grid, kamar yadda aka nuna a cikin Hoto na 2, da sel 26957 da nodes 140560 an samar da su gaba ɗaya.

Load aikace-aikace da iyakokin iyaka: bisa ga halaye na aiki na kayan aiki na duniya a cikin mai ragewa, kayan rana shine kayan tuki, kayan aiki na duniya shine kayan motsa jiki, kuma fitarwa ta ƙarshe ta hanyar jigilar duniya. Gyara zoben gear na ciki a cikin ANSYS, sannan a shafa juzu'i na 500N · m ga kayan rana, kamar yadda aka nuna a hoto na 3.

Bayan aiki da bincike na sakamako: Nephogram na ƙaura da madaidaicin nephogram na damuwa na tsayayyen bincike da aka samu daga sassan grid biyu an bayar da su a ƙasa, kuma ana gudanar da bincike na kwatance. Daga nephogram na ƙaura na nau'ikan grid guda biyu, an gano cewa matsakaicin ƙaura yana faruwa a wurin da kayan aikin rana ba su haɗa tare da kayan aikin duniya ba, kuma matsakaicin damuwa yana faruwa a tushen ragar kayan. Matsakaicin matsin lamba na grid tetrahedral shine 378MPa, kuma matsakaicin matsakaicin grid hexahedral shine 412MPa. Tun da yawan amfanin ƙasa na kayan shine 785MPa kuma ƙimar aminci shine 1.5, damuwa mai ƙyalli shine 523MPa. Matsakaicin damuwa na duka sakamakon ya kasance ƙasa da damuwa da aka yarda, kuma duka biyu sun hadu da yanayin ƙarfi.

2. Kammalawa

Ta hanyar ƙayyadaddun simintin simintin simintin ƙera na duniya, ana samun nakasar ƙaura nephogram da kwatankwacin damuwa nephogram na tsarin gear, daga abin da matsakaicin mafi ƙarancin bayanai da rarraba su a cikinabin duniya kayamodel za a iya samu. Matsayin matsakaicin matsakaicin madaidaicin matsi kuma shine wurin da haƙoran gear suka fi iya kasawa, don haka ya kamata a ba da kulawa ta musamman a lokacin ƙira ko masana'anta. Ta hanyar nazarin dukkanin tsarin tsarin duniya, kuskuren da aka yi ta hanyar nazarin hakori guda ɗaya kawai ya shawo kan.