O le auiliiliga fofo e fuafua ai le faʻavae o le ituaiga o le fa o le fa-pa masini e ala i le faʻaaogaina o le hinged f

Faʻalauteleina le auiliiliga o le fesoʻotaʻiga i le va o le aiga faʻasolo ma le tulaga o le fesoʻotaʻiga toʻotoʻo i le fa-bar-bar raineos eseese faʻataʻitaʻiga. E ala i le mafaufauina o le tele o sitepu ma tulaga o toʻotoʻo taʻitasi, e mafai ona tatou fuafuaina fofo mo ituaiga eseese o tulaga masani o 'oa i totonu o le faʻatusa.

O le tulaga masani o le mafutaga e mafai ona vaevaeina i tolu mataupu. I le mataupu muamua, pe a "ad < bc" and a and b are adjacent bars, we can take the shortest bar (a) as the reference member and analyze its relative motion with the two adjacent bars. Since "a < b" and "c < d", we can conclude that rod a can be straightened and collinear with the two adjacent rods. In other words, a can overlap and be aligned with the neighboring rods.

Mo le faʻavaeina lenei tulaga maualuga, o le le tutusa o le lava le manaʻo e tatau ona taofia: "d + c> a + a". Lenei uiga o le "D> C + o le", lea e o gatasi ma tuutuuga. E le gata i lea, e mafai ona faʻamaonia e mafai foʻi ona faʻapipiʻiina foʻi ma le suauʻu ma le isi itu o loʻo latalata mai i fafo. O le mea lea, o le faʻafeagai o le pito i luga (b poʻo le c) o le puʻupuʻu pu (a) e mafai naʻo swang e lua o laina i le lua i le 180 °. O lona uiga o le tulimanu o le aupega e faʻatapulaʻaina i lalo ifo o le 180 °, ae sili atu nai lo le 50 ° (pei o le tulaga).

I le tulaga lona lua, a o le a ma le B o le au filo, o lea lava metotia e pei o le muamua mataupu e mafai ona faʻaaogaina e faʻaalia ai le puʻupuʻu (a) e mafai pea ona feoaʻi ai le lua o pa. O lona uiga, e mafai ona tatou faʻatagaina le talanoaina o lenei tulaga.

I le tulaga lona tolu, matou te manatu o le mea e sili ona umi (D) ma le lua o paomao e lua. Mai le mataupu lauiloa, e mafai ona tatou faaosoina le "d> b> b com" ma "d> a + a + am". O lona uiga o le rod d e le mafai ona tua ma collliar ma le lua o tuaoi tuaoi. Ma le isi, afai e mafai ona ea i luga ma kukitata ma ofu vaivai, matou te maua ai "le + ru> f + a> b + a> e. O le mea lea, matou te manatu o le tootoo e le mafai ona soona faataamilo ma avea ma collliar ma le tuaoi tuaoi. I lenei tulaga, o tulimanu uma o le aau e faʻatapulaʻaina i lalo ifo o le 180 °.

Tuʻufaʻatasia faʻaiuga mai le muamua, lona lua, ma le tolu tulaga, e mafai ona tatou otootoina lena, i lalo o le tulaga o le "faʻasalalauga < bc", regardless of the various positions, the shortest bar (a) and the second adjacent bar (b) can rotate relative to each other for a whole circle. However, the opposite pole (b or c) and the two adjacent poles of the shortest bar can only swing relative to each other, with the relative swing angle being less than 180°.

E ala i le faʻamaninoina o le uiga o le auala i le va o le lua o loʻo uʻu i lenei ituaiga o le fa-pa taimatolo ginetututic filifili, e mafai ona tatou fuafuaina i le filifilia o soʻo se laina. Faʻataʻitaʻiga, afai o le puʻupuʻu o le lapotopoto (a) ma le itu e tuaoi o loʻo faʻaaogaina o le faʻavaʻa, o le crank-rocker meosss. I le isi itu, afai o le isi itu o le puʻupuʻu o le laʻasaga o loʻo faʻaaogaina o le faʻavaʻa, o le faʻaluaina-rocker merchansm ua mauaina. E taua le maitauina o le Rocker, i le mataupu mulimuli, e le mafai ona tauvalaʻau i se tulaga colllinear ma le fata poʻo le faʻavasegaina o le aisa e tatau ona i lalo ifo o le 10 ° le vaega o le aisa e tatau ona i lalo ifo o le aisa, ma le swang ange e tatau ona i lalo ifo o le aisa, ma le swang toto e tatau ona itiiti ifo i le 180 ° le vaega o le aisa.

I le faaiuga, e ala i le auiliiliga o le vao i le va o le femalagaiga ai le itu, o lona uiga o le fesoʻotaʻi toʻotoʻo i le vaega o le fa-pa ma ona tapulaʻa. E ala i le malamalama i nei faʻavae, inisinia ma fomaʻi e mafai ona atiaʻe ma faamamaina ituaiga eseese o masini mo talosaga patino.