Hoʻopuka ka ʻāʻī (a i ʻole rotor) i nā haʻalulu i hoʻouna ʻia i kapahu mokupamu a laila i nā lako a puni, nā paipu a me nā mea pono. 'Oko'a ka amplitude vibration me ka wikiwiki o ka rotational. I ka wikiwiki koʻikoʻi, ʻoi aku ka nui o ka vibration amplitude a haʻalulu ke kumu i ka resonance. ʻO ke kaulike ʻole a me ka misalignment ke kumu nui o ka haʻalulu ʻana o ka paila. Eia nō naʻe, aia kekahi mau kumu a me nā ʻano o ka haʻalulu e pili ana i nā pamu.

ʻO ka haʻalulu, ʻoi aku ma muli o ke kaulike ʻole a me ka misalignment, ua lilo ia i mea nui o ka hopohopo no ka hana, ka hana, ka hilinaʻi a me ka palekana o nā pamu he nui. ʻO ke kī he ala ʻōnaehana i ka vibration, balancing, alignment a me ka nānā ʻana (vibration monitoring). Ka nui o ka noiʻi ʻana mapahu mokuʻO ka haʻalulu pume, ke kaulike, ka alignment a me ka nānā ʻana i ke kūlana vibration he theoretical.

Pono e nānā nui ʻia i nā ʻano hana o ka noi hana a me nā ʻano hana maʻalahi a me nā lula (no nā mea hana, nā mea ʻenekinia mea kanu a me nā loea). Kūkākūkā kēia ʻatikala i ka haʻalulu i nā pāpaʻi a me nā paʻakikī a me nā maʻalahi o nā pilikia āu e hālāwai ai.

Vibrations i loko o ka Pmaunu

ʻO ka hihia hoʻokaʻawale pumpshoʻohana nui ʻia i nā hale hana hou a me nā mea hana. I loko o nā makahiki, aia kahi ʻano i ka wikiwiki, ʻoi aku ka ikaika o nā pamu me ka hana maikaʻi a me nā pae haʻahaʻa haʻahaʻa. Eia nō naʻe, no ka hoʻokō ʻana i kēia mau pahuhopu paʻakikī, pono e wehewehe maikaʻi, hana a mālama i nā pamu. ʻO kēia ka unuhi ʻana i ka hoʻolālā maikaʻi, ka hoʻohālike, ka hoʻohālikelike, ka nānā ʻana, ka hana ʻana a me ka mālama ʻana.

ʻO ka haʻalulu nui paha he pilikia e ulu ana a i ʻole he hōʻailona o ka hiki ʻole mai. ʻIke ʻia ka haʻalulu a me ka haʻalulu / walaʻau e pili ana i ke kumu o nā pilikia o ka hana, nā pilikia hilinaʻi, nā haki, ʻoluʻolu a me nā hopohopo palekana.

Vhoʻopaʻapaʻa Pnāʻoihana

Kūkākūkā mau ʻia nā hiʻohiʻona kumu o ka vibration rotor e pili ana i nā ʻano kuʻuna a maʻalahi. Ma kēia ala, hiki ke hoʻokaʻawale ʻia ka vibration o ka rotor i ʻelua mau ʻāpana i ke kumumanaʻo: ka haʻalulu manuahi a me ka haʻalulu ikaika.

ʻElua mau mea nui o ka vibration, maikaʻi a maikaʻi ʻole. Ma kahi ʻāpana i mua, kaʻa ka rotor ma ke ala helical a puni ka axis bearing i ke ala o ka rotation shaft. ʻO ka mea ʻē aʻe, i ka haʻalulu maikaʻi ʻole, e hoʻopuni ana ke kikowaena rotor a puni ke koʻikoʻi bearing ma ka ʻaoʻao ʻē aʻe i ka rotation shaft. Inā kūkulu ʻia a hoʻohana maikaʻi ʻia ka paila, e pohō koke nā haʻalulu manuahi, e hoʻopilikia nui i nā haʻalulu hoʻoikaika.

Loaʻa nā pilikia a me nā pilikia i ka nānā ʻana i ka vibration, ka nānā ʻana i ka vibration a me kona ʻike. Ma keʻano laulā, i ka piʻi ʻana o ke alapine haʻalulu, e lilo i mea paʻakikī ke helu/nānā i ka pilina ma waena o ka haʻalulu a me nā heluhelu hoʻokolohua/maoli ma muli o nā ʻano hana paʻakikī.

Pum maoli a me ka Resonance

No nā ʻano pauma he nui, e like me nā mea hiki ke hoʻololi i ka wikiwiki, ʻaʻole hiki ke hoʻolālā a hana i kahi pamu me kahi palena kūpono i ka resonance ma waena o nā pilikia manawa āpau (excitations) a me nā ʻano kūlohelohe kūlohelohe āpau..

ʻAʻole hiki ke ʻalo pinepine ʻia nā kūlana resonant, e like me nā hoʻokele kaʻa kaʻa wikiwiki (VSD) a i ʻole nā ​​ʻenekini mahu, nā turbine kinoea a me nā ʻenekini. I ka hoʻomaʻamaʻa ʻana, pono e hoʻohālikelike ʻia ka hoʻonohonoho ʻana o ka pamu e like me ka helu no ka resonance. ʻAʻole pilikia maoli kekahi mau kūlana resonance, no ka laʻana, ka damping kiʻekiʻe i komo i nā ʻano.

No nā hihia ʻē aʻe, pono e hoʻomohala ʻia nā ʻano hoʻohaʻahaʻa kūpono. ʻO kekahi ʻano o ka hoʻohaʻahaʻa ʻana ma o ka hoʻemi ʻana i nā haʻahaʻa hau e hana ana ma nā ʻano vibration. No ka laʻana, hiki ke hōʻemi ʻia nā mana hoʻohiwahiwa ma muli o ke kaulike ʻole a me nā ʻano like ʻole o ke kaumaha ma o ke kaulike kūpono. Hiki ke hoʻemi ʻia kēia mau mana hoʻohiwahiwa e 70% a i 80% mai nā pae kumu/maʻamau.

No ka hoʻohauʻoli maoli i loko o ka pāpaʻi (resonance maoli), pono ke kuhikuhi o ka hauʻoli i ke ʻano o ke ʻano kūlohelohe i hiki ai i ke ʻano kūlohelohe ke hoʻohauʻoli i kēia haʻahaʻa hauʻoli (a i ʻole hana). I ka hapanui o nā hihia, inā ʻaʻole i kūlike ke kuhikuhi ʻana i ke ʻano o ke ʻano kūlohelohe, hiki ke noho pū me ka resonance. No ka laʻana, ʻaʻole hiki ke hoʻohauʻoli ʻia nā ʻoliʻoli kūlou i ke alapine maoli o ka torsion. I nā hihia kakaʻikahi, hiki ke loaʻa nā resonances torsional transverse i hui ʻia. Pono e noʻonoʻo pono ʻia ka likelika o ia mau kūlana kūʻokoʻa a i ʻole.

ʻO ka hihia maikaʻi loa no ka resonance ʻo ia ka coincidence o ke ʻano kūlohelohe a me ke ʻano hauʻoli i ka alapine like. Ma lalo o kekahi mau kūlana, lawa ka hoʻokō ʻana no ka hauʻoli e hoʻoulu i ke ʻano o ke ʻano.

Eia kekahi, hiki i nā kūlana hoʻohui paʻakikī kahi e hoʻohauʻoli ai i nā ʻano like ʻole ma o nā mīkini vibrational hui. Ma ka hoʻohālikelike ʻana i nā ʻano hoʻohiwahiwa a me nā ʻano ʻano kūlohelohe, hiki ke hoʻokumu ʻia kahi manaʻo inā ʻo ka hoʻoulu ʻana o kahi alapine a i ʻole ke kauoha harmonic he pilikia/pilikia i ka pamu. ʻO ka ʻike hoʻomaʻamaʻa, ka hoʻāʻo pololei, a me ka holo ʻana i nā loiloi kuhikuhi he ala e loiloi ai i ka pilikia i nā hihia resonance theoretical.

Hōʻike Misalignment

ʻO ka misalignment kahi kumu nui opahu mokuʻopuʻu haʻalulu. ʻO ka pololei o ka alignment liʻiliʻi o nā shafts a me nā hui ʻana he pilikia nui. Loaʻa pinepine nā hoʻopiʻi liʻiliʻi o ka laina waena rotor (radial offset) a me nā pilina me ka angular offsets, no ka laʻana ma muli o nā flanges pili ʻole perpendicular. No laila e loaʻa mau ana kekahi haʻalulu ma muli o ka misalignment.

Ke hoʻopaʻa paʻa ʻia nā ʻāpana hui, ʻo ka hoʻololi ʻana o ka lāʻau e hoʻohua i ʻelua mau mana hoʻololi ma muli o ka offset radial a me nā manawa kulou ʻelua ma muli o ka misalignment. No ka misalignment, e hana ʻelua ʻia kēia ikaika o ka hoʻololi ʻana i ka shaft/rotor revolution a ʻo ke ʻano o ka vibration excitation velocity ʻelua ʻelua ka wikiwiki o ka shaft.

No ka nui o nā pamu, ke ʻano o ka wikiwiki o ka hana a/a i ʻole kona mau harmonics ke hoʻopilikia i ka wikiwiki koʻikoʻi (frequency kūlohelohe). No laila, ʻo ka pahuhopu ka pale ʻana i nā resonances weliweli, nā pilikia a me nā malfunctions. Hoʻokumu ʻia ka loiloi pilikia pili i nā simulation kūpono a me ka ʻike hana.