Mafuta eroketi anoita basa rakakosha mumabasa ekutsvaga muchadenga. Mumakore apfuura, mhando dzakasiyana dzemaroketi anofambisa maroketi dzakagadzirwa uye dzakaedzwa kuti dzishande zvakanaka uye dzishande zvakanaka. Imwe yemafuta akadaro iHTPB, iyo inomiririra hydroxyl-terminated polybutadiene. Nekuda kwehunhu hwayo hwakanaka, imafuta anoshandiswa zvakanyanya mumaroketi eroketi akasimba.
Mafuta eroketi eHTPB imhando yemafuta anosanganisa mafuta anosanganisa mafuta, oxidizer uye esimbi yakakuyiwa. Iyo inosunga mafuta (kureva HTPB) inoshanda senzvimbo yemafuta uye inopa chimiro chakasimba kune iyo inosunga mafuta. Ine polymer ine chain refu yakagadzirwa nekuita butadiene nedoro, ichiipa hunhu hwainodiwa hwe hydroxyl-terminated.
Chimwe chezvinhu zvakasiyana zve HTTPBine simba rakawanda. Ine kupisa kwakanyanya kwekutsva, zvinoreva kuti inogona kuburitsa simba rakawanda kana yapiswa. Izvi zvinoita kuti ive yakakodzera kufambisa maroketi, sezvo simba rakawanda rinogadzirwa nepropellant, ndiko kuwedzera kwesimba rinogoneka.
Pamusoro pezvo, HTPB hainyanyi kubatwa nekuvhunduka nekukweshana, zvichiita kuti ive propellant yakasimba uye yakachengeteka. Kugadzikana kwayo kwakakosha panguva yekuchengetwa nekutakurwa, uye chero moto wetsaona unogona kuva nemigumisiro yakaipa. Kusanzwa kwakanyanya kwe HTTPBinobvumira mwero wepamusoro wekuchengetedzwa kwekushanda kana tichienzanisa nedzimwe mhando dzepropellant.
Imwe mukana we HTTPBMumafuta eroketi, kugona kwayo kuumbwa mumhando dzakasiyana-siyana uye saizi. Inogona kuumbwa zviri nyore kuita majometri ezvikamu zvakakodzera magadzirirwo eroketi uye zvinodiwa. Kuchinjika uku kwekugadzira kunobvumira mainjiniya kugadzirisa mapropellant kuti awedzere mwero wekutsva uye kuwana hunhu hwaunoda hwekushanda.
Kupisa HTPB muinjini yeroketi kunoburitsa gasi rakawanda uye utsi hwakawanda. Utsi hunogadzirwa nepropellants dzinobva kuHTPB hunokonzerwa nekutsva kusina kukwana uye kuvapo kwezvimwe zvinhu zvakasimba zvasara. Kunyange hazvo utsi hungave husina kunaka kune mamwe mashandisirwo, hunogona kubatsira pakuratidza nzira yeroketi panguva yekurwiswa kwayo.
Pamusoro pezvo, HTTPBMafuta eroketi ane mwero wakaderera wekutsva. Mwero uyu wekutsva unodzorwa unobvumira kugoverwa kwekukanda kwakadzorwa uye kunofungidzirwa, izvo zvakakosha pamashandisirwo anoda kudzora kwakarurama uye kugona kufamba. Mainjiniya anogona kugadzira nzira yekubhururuka kweroketi nemazvo, zvichivandudza kubudirira kwebasa rose.
Kunyangwe mafuta eroketi eHTPB aine zvakanakira zvakawanda, anewo zvimwe zvisingakwanisike. Chimwe chinogumira ndechekuti ane specific impulse yakaderera kana tichienzanisa nedzimwe mhando dzepropellant. Specific impulse ndiyo nzira yekuti propellant inoshandura sei mafuta kuita thrust. Kunyangwe HTPB ichipa specific impulse yakanaka, kune mamwe mapropellant anogona kupa specific impulse values.
Nguva yekutumira: Mbudzi-05-2023