1. Whakamātautau mahi hurihuri
Kaupapa: Hei whakamātautau i te mahi hurihuri o te wira hurihuri i muri i te utaina;
Ngā taputapu whakamātautau: mīhini hurihuri wira kotahi, mīhini whakamātautau mahi urungi;
Ngā Tikanga Whakamātautau: E ai ki te Pikitia 1, tāutahia te mīhini hurihuri, te wira rānei ki runga i te mīhini whakamātautau, whakamahia te kawenga whakatauranga W ki runga i te mīhini hurihuri i te ahunga paramu, ka whakamahia te kaha ki runga i te toki wira i te ahunga whakapae. Inehia te kaha iti rawa F1 e hiahiatia ana hei huri i te mīhini hurihuri, te wira rānei.
Ka tatauhia te ātete hurihuri o tētahi wira kotahi e ai ki te whārite (1).
pl=F1/W…… (1)
Ko te tauwehenga ātete hurihuri μ1;
Te ātete hurihuri F1, ko te waeine ko Niu (N).
Kawenga whakatauranga W, i roto i te Nm (N).
Arā: te pana F1 = te kawenga W × te tauwehenga ātete μ1
Me rite te mahi hurihuri o te wira kotahi o te mīhini huri ki te paerewa ā-motu GB/T14687-2011 (Ripanga 1).
2. Whakamātautau mahi urungi
Kaupapa: Hei whakamātautau i te mahi urungi o ngā wira whānui i muri i te utaina;
Ngā taputapu whakamātautau: mīhini whakamātautau mahi urungi hurihuri hurihuri.
Tikanga Whakamātautau: E ai ki te Whakaahua 2, tāutahia te wira hurihuri ki runga i te mīhini whakamātautau, whakamahia te kawenga kua whakatauria W ki te wira hurihuri i te ahunga paramu, ka whakamahia te kaha i te ahunga whakapae poutū ki te ahunga whakamua o te wira. Inehia te kaha iti rawa F2 hei urungi i te wira hurihuri, ko F2 te ātete urungi o te wira hurihuri. Ka tatauhia te tauwehenga ātete urungi e ai ki te whārite (1).
μ2=F2/W …… (1)
ko μ2 te tauwehenga o te ātete urungi.
F2 Ātete urungi, i roto i te Nm; W Kawenga kua whakatauria, i roto i te Nm.
Kawenga whakatauranga W i roto i te Nm.
arā: te kaha pana F2=te tauwehenga ātete kawenga wX μ2
Me tutuki te mahi urungi ki te paerewa ā-motu GB/T14687-2011 (Ripanga 2).
3. Whakaahuatanga o ngā uara whakamātautau.
Ko te tau ātete o te whakamātautau mai i te 1, mai i te 2 ko te iti ake, e tohu ana ko te iti o te ātete, ko te māmā ake o te whakamahi, ko te pai ake o te ngāwari: i te ritenga ke, ko te nui ake o te uara, ko te nui ake o te ātete, ko te mahi nui ake o te whakamahi.
4. Te whanaungatanga i waenga i te mata o te wira hurihuri, te anga nekenekehanga o te kōpae, te pōro me te ātete.
1) Ka pakeke ake te mata o te wira hurihuri (pērā i te PA, MC, PP, wira rino, me ētahi atu), ka iti ake te tauwehenga ātete, ka māmā ake te pana, engari ka kino ake mō te pānga tiaki o te whenua me te pānga wahangu.
2) Ina he mea ngohengohe te mata o te wira hurihuri (pērā i te TPU, TPR, BR, me ētahi atu), ka nui ake te tauwehenga ātete, ka nui ake te kaha taraiwa e hiahiatia ana, engari ka pai ake te pānga o te tiaki whenua me te pānga wahangu.
3) Ka teitei ake te pakeke o te kōpae me te rauemi pōro o te whāriki wira neke, ka iti ake te tauwehenga ātete urungi, ā, ka māmā ake te pana.
Wā tuku: Paenga-whāwhā-24-2024