Ko te otinga taipitopito hei whakatau i te momo taketake o te miihini e wha-pa e whakamahi ana i te hinged f

Ko te whakawhānui i te tātaritanga o te hononga i waenga i te nekehanga whanaunga me te rahi o te roopu honohono i roto i te mekameka honohono i roto i te wha-pa, ka taea e taatau te tirotiro i nga ahuatanga rereke. Ma te whakaaro ki te rahi o te whanaunga me te tuunga o ia tokotoko, ka taea e taatau te whakatau nga rongoā mo nga momo momo momo miihini i roto i te anga e kiia ana.

Ka taea te wehewehe i te whanaungatanga whanaunga kia toru nga keehi. I roto i te keehi tuatahi, ka "panui < 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.

Hei whakapumau i tenei ahuatanga whakapaipai, me pupuri te huringa e whai ake nei: "D + C> B + A". E tohu ana tenei ko te "D> C + A", e rite ana ki nga tikanga kua homai. I tua atu, ka taea te whakamarama ka taea hoki te whakakikorua me te collicar me te taha o te tokotoko tata (c), ma te whakamahi i nga whakaaro rite. No reira, ko te pou rereke (b, c ranei) o te pae poto (a) ka taea noa te huri o te whanaunga ki nga pou e rua e tata ana ki te koki i te 180 °. Koinei te tikanga o te koki o te piihi he iti ake i te 180 °, engari nui ake i te 50 ° (rite ki te huru).

I roto i te keehi tuarua, i te wa e tu ana a A me B i nga pou, ko te keehi tuatahi ka taea te tono ki te whakaatu ko te pae tino poto (a) ka huri i te whanaunga ki nga tutaki e rua. Na reira, ka taea e tatou te whakakore i te korerorero mo tenei ahuatanga.

I roto i te tuatoru o nga keehi, ka whakaarohia e matou te nekehanga whanaunga i waenga i te pae roa (d) me nga tutaki e rua tata. Mai i nga tikanga e mohiotia ana, ka taea e taatau te tango i te "D> B + AC" me te "D> e + AB". Ko tenei e kii ana kaore e taea e te tokotoko te whakatika me te collicar me nga rakau e rua tata. Hei taapiri, mena ka taea te whakakii me te collicar me nga rakau e tata ana, ka "D + C + B + A> B + C +. No reira, ka mutu ta matou, kaore e taea e te tokotoko te whakakikorua, a kia piri ki nga rakau e tata ana. I tenei ahuatanga, he iti noa iho te 180 °.

Ko te whakakotahi i nga whakatau mai i te tuatahi, tuarua, tuatoru, ka taea e tatou te whakaemi i tera, i raro i te ahua o te "Ad < 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°.

Ma te whakamarama i te nekehanga whanaunga i waenga i nga rod e rua i roto i tenei momo mekameka e wha-pa, ka taea e taatau te whakatau i te momo tohu ma te kowhiringa o te tokotoko. Hei tauira, ki te mea ko te rod poto (a) me te taha tata e whakamahia ana ko te anga, ka riro i te ara-a-roopu. I tetahi atu taha, ki te whakamahia te taha tata o te tokotoko poto hei anga, ka whiwhihia he huarahi takirua-rua. He mea nui kia mohio ko te rocker, i te keehi o muri, kaore e taea te huri ki te riipene, me te raina toronga ranei o te koki, me te koki Swing me iti iho i te 180 °.

Hei mutunga, na roto i te tātaritanga o te hononga o te whanaunga, te rahi whanaunga, me te ahuatanga whanaunga o nga mekameka honohono i roto i tetahi mekameka honohono e wha, ka taea e tatou te whakatau i te momo momo. Ma te mohio ki enei tikanga, ka taea e nga miihini me nga kaihoahoa te whakawhanake me te arotau i nga momo momo miihini mo nga tono motuhake.