ʻO ka nui o ke kaula

** ʻŌlelo Aʻo Nui:** He kikokikona waihona mōʻaukala kēia, ʻaʻole he helu mīkini o kēia manawa, loiloi pilikia a i ʻole manual hana. Pono e nānā ʻia ka helu o nā kipi, ka hahau ʻana, ka neʻe ʻana, nā ikaika, coefficients a me nā waiwai papa e like me nā lula kūpono, nā palapala a ka mea hana a me nā kūlana hana kikoʻī.

ʻAʻole kēia kikokikona he mīkini hāʻawi a i ʻole palapala lawelawe a Savo Kusić. ʻO ka hāʻawi ʻana i kēia manawa e kau ʻia ma nā puka makani, nā puka a me nā hoʻonā pili.

Ka helu o nā kipi a me ka nui hahau

ʻO ka helu o nā kipi o ka lāʻau e hoʻoholo i ka huahana o ka puka. ʻO ka kiʻekiʻe o ka helu o nā kipi, ʻoi aku ka kiʻekiʻe o ka huahana ma ka nui like o ka hahau ʻana o ka puka. Eia nō naʻe, me ka ʻole o ka helu mua ʻana, ʻaʻole pono e hoʻonui ʻia ka nui o nā kipi o ka shaft, no ka mea e alakaʻi ana kēia i ka piʻi nui ʻana o nā ikaika inertial vertical, hiki ke hoʻokō i ka hemahema o ka puka. ʻO ka helu o nā hoʻololi ʻana o ke kumu mai 200 a i 350 i kēlā me kēia minuke i nā kiaʻi puka hou. ʻO ke kiʻi me nā ʻili i hoʻopaʻa ʻia e neʻe i luna a i lalo a ma kēia ʻano e ʻoki ʻia ai nā lāʻau. ʻO ka lōʻihi o ka hele ʻana o ka pā puka mai kona kūlana haʻahaʻa a kiʻekiʻe loa, ua kapa ʻia ʻo gatter stroke nui.

E pili ana ka nui o ka hahau i ka hana o ke kiai puka. Me ka hoʻonui ʻana i ka hahau, me ka helu like o nā kipi, piʻi ka huahana o ka puka. Hiki ke hoʻonui ʻia ka nui o ka hahau ʻana inā he helu ma mua.

Step - ʻo ka neʻe ʻana ka neʻe ʻana o nā lāʻau i ka manawa hoʻokahi o ka huli piha ʻana o ke kumu puka. Hiki ke hoʻoholo ʻia ka nui o ka ʻanuʻu ma ka mana o ke kaʻa kaʻa ma ke ʻano:

ʻO ka hoʻoneʻe ʻana i ka lāʻau a me nā hiʻohiʻona mōʻaukala

Δ =140N / Σhn mm kahi ʻo Δ ka ʻanuʻu o ka lāʻau a i ʻole ka lāʻau i hoʻokahi huli piha ʻana o ke kumu puka, mm; N - mana kaʻa k x s; Σh - ka huina o nā kiʻekiʻe o nā ʻoki i waenakonu o ka lōʻihi o ka lāʻau; h - ka huina o nā kiʻekiʻe o nā ʻoki i waenakonu o ka lōʻihi o ka lāʻau, m; n - ka helu o nā kipi o ke kumu puka, min.

Hiki ke helu ʻia ka huina o nā kiʻekiʻe o nā ʻoki e like me ke ʻano Σh = α x dsr x z, kahi ʻo α ka coefficient, e hōʻike ana i ke kiʻekiʻe kiʻekiʻe o nā ʻoki a lawe ʻia.0,65-0,80ke okiia na laau. Ke ʻoki ʻia ka lāʻau, ua like kēia koena me ka lokahi; dsr- anawaena ma ka waena o ka laau; z - ka helu o nā pahi i hoʻopaʻa ʻia i loko o ke kiʻi.

No ka ʻoki ʻoka, ʻoi aku ka nui o ka neʻe ʻana60%, no ka larch -85%, no ka leka -70%, no ka birch -80%mai nā offsets no ka pine a me ka spruce i hāʻawi ʻia ma ka papaʻaina1.

ʻIkepili papa no nā puka puka kū pololei