I ka mīkini ana hoʻonohonoho alahaka, pehea ka hopena o ka moena pōhaku i kona laulā a me ka pololei?

ʻO ka bridge coordinate measuring machine (CMM) i manaʻo nui ʻia ʻo ia kekahi o nā mea hana ana pololei loa i loaʻa i ka ʻoihana. ʻO ka pololei o kēia mea paahana e pili ana i kekahi mau kumu nui, e like me ka maikaʻi o nā ʻimi ana a me ka polokalamu hoʻokele. ʻO kahi mea koʻikoʻi e hiki ke hoʻopilikia nui i ke ana ʻana a me ka pololei o ka CMM ʻo ke koho ʻana i ka mea moe/kino.

ʻO ka mea maʻamau, ua kūkulu ʻia nā alahaka CMM me ka hoʻohana ʻana i ka hao hao, kahi mea me ka ʻoi loa o ka rigidity a me ka paʻa. Eia naʻe, i nā makahiki i hala iho nei, ua lilo ka granite i mea koho kaulana. He nui nā mea hana i kēia manawa makemake i ka granite ma muli o kona ʻoi aku ka maikaʻi o ka mīkini a me ka paʻa wela.

ʻAʻole like me ka hao hao, ʻoi aku ka haʻahaʻa haʻahaʻa o ka granite o ka hoʻonui ʻana i ka wela, me ka liʻiliʻi o ka hoʻololi ʻana i ka wela ma muli o nā loli wela. ʻO kēia paʻa wela e hiki ai i ka CMM ke mālama i kona pololei ma luna o kahi ākea o nā mahana hana, e hōʻoia ana i ka pololei a me ke kūlike.

ʻO kekahi mea ʻē aʻe o ka hoʻohana ʻana i ka granite no ka moena CMM ʻo ia kona mau waiwai damping kūlohelohe. Loaʻa i ka Granite ka mana damping kiʻekiʻe ma mua o ka hao hao, e kōkua ana e hōʻemi i ka hopena o nā haʻalulu mīkini i hoʻokumu ʻia e ka lawelawe ʻana a i ʻole nā ​​​​mea kūlohelohe. Ma ka hōʻemi ʻana i kēia mau haʻalulu, ʻo ka moena granite e hōʻoia i ka hiki ke loaʻa i nā probes ana i kahi heluhelu paʻa a pololei, e hōʻemi ana i nā hewa a hōʻemi i ka pono no ka calibration.

Eia kekahi, ʻoi aku ka liʻiliʻi o ka granite i ka lole a me ka waimaka ke hoʻohālikelike ʻia me ka hao. I ka lōʻihi o ka manawa, hiki i ka ʻili o kahi moena hao hao ke lilo a ʻokiʻoki paha, e alakaʻi ana i nā hemahema o ke ana ʻana. ʻO Granite, ma ka ʻaoʻao ʻē aʻe, ke kūpaʻa nui nei i kēlā pōʻino, e hōʻoiaʻiʻo ana i ka pololei o ka mīkini e hoʻomau mau i kona holo ʻana o ke ola.

ʻO kekahi pōmaikaʻi koʻikoʻi o ka granite ʻo ia ka hiki ke mālama i nā ukana kaumaha. Me kona ikaika compressive kiʻekiʻe a me ka rigidity maikaʻi loa, hiki iā ia ke kū i nā mea hana kaumaha me ka ʻole o ka hoʻohālikelike ʻana i kona pololei.

I ka hopena, he mea koʻikoʻi ka moena granite o kahi alahaka hou CMM, e hāʻawi ana i nā pono he nui ma luna o nā mea kahiko e like me ka hao hao. Hāʻawi ia i ke kūpaʻa wela maikaʻi, ka hoʻoheheʻe ʻana, a me nā waiwai pale pale, e hōʻoiaʻiʻo ana e hiki i ka mīkini ke mālama i kona pololei a paʻa i ka wā lōʻihi. Eia kekahi, ʻo kona hiki ke mālama i nā haʻahaʻa kaumaha e lilo ia i mea hana maʻalahi no ke ana pono ʻana i nā mea hana nui. Ma ke ʻano holoʻokoʻa, ʻo ka hoʻohana ʻana i ka granite he mea kānalua ia i ka hoʻomohala ʻana i nā CMMs alahaka, kahi e hoʻomau i ka hoʻomaikaʻi ʻana i ka pololei a me ka hilinaʻi o kēia mau mea hana no nā makahiki e hiki mai ana.