Isisombululo esineenkcukacha ukumisela uhlobo olusisiseko lwendlela ye-hinged ye-hinged nge-hinged nge-hinged f

Ukwanda kuhlalutyo lolwalamano phakathi kokuhamba kwesihlobo kunye nenqanaba lezinto eziqhagamshela kwibhinli ye-kinematic winematic, sinokuhlolisisa iimeko ezahlukeneyo zokuqaphela. Ngokujonga ubungakanani besihlobo kunye nesikhundla sentonga nganye, sikwazi ukubona izisombululo zeentlobo ezahlukeneyo ezisisiseko zeendlela ezichaphazelekayo.

Ubuhlobo obulingana nolwalamano lunokwahlulwa kuba ngamatyala amathathu. Kwimeko yokuqala, xa "intengiso < 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.

Ukuseka le meko igqithileyo, oku kungalingani okulandelayo kufuneka kubembe: "D + A". Oku kuthetha ukuba "D> A", ehambelana neemeko ezinikiweyo. Ukongeza, kunokungqinwa ukuba i-as inokuthi igqunywe kakhulu kwaye iqungquthele kunye nentonga esecaleni (c), esebenzisa isizathu esifanayo. Yiyo loo nto, isibonda esichaseneyo (B okanye c) seli i-bar emfutshane (a) inokutshintsha kuphela kwizibonda ezimbini ezikufuphi ne-180 °. Oku kuthetha ukuba i-angle ye-swing inqunyelwe ngaphantsi kwe-180 °, ingaphezulu kwe-50 ° (ngokwemeko).

Kwicala lesibini, xa i-A kunye ne-B zizinto ezichaseneyo, indlela efanayo nemeko yokuqala inokusetyenziswa ukubonisa ukuba eyona ndawo imfutshane (a) isenokujikeleza imivalo emibini. Ke ngoko, sinokushiya ingxoxo yale meko.

Kwimeko yesithathu, sijonga intshukumo yesalamane phakathi kweBar ende (D) kunye nemivalo emibini ekufuphi. Ukusuka kwiimeko eziziwayo, sinokuphelisa loo nto "D> B + AC" kunye "no-E + Ab Ab". Oku kuthetha ukuba i-rod d ayinakho ukuthotyelwa kwaye iphindwe i-collinear kunye neentonga ezibini ezikufuphi. Ukongeza, ukuba u-D unokuqhawulwa kwaye ungqubana neentonga ezingabamelwane, sinokufumana "D + A> A> A> B + (siphikisana neemeko ezinikiweyo). Ke ngoko, sigqiba kwelokuba intonga d ayikwazi ukuqhubeka kwaye ihlehlise iintonga ezikufuphi. Kule meko, zombini ii-angles zokutshiza zinqunyelwe ngaphantsi kwe-180 °.

Ukudibanisa izigqibo ukusuka kwi-therimardions kwi-the bin, yesibini, kunye neyesithathu, sinokushwankathela loo nto, phantsi kwe-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°.

Ngokucacisa intshukumo yesihlobo phakathi kweentonga ezibini ezixhonyiweyo kolu hlobo lwe-tin-beine ye-kinematic, sinokufumanisa uhlobo lwendlela ngokukhetha nayiphi na intonga yered. Umzekelo, ukuba eyona mpahla imfutshane (a) necala elikufuphi isetyenziswa njengesakhelo, i-crank-rocker yendlela ifunyanwa. Kwelinye icala, ukuba elinye icala leli ndlu imfutshane lisetyenziswa njengesakhelo, i-rocker ye-rocker ifunyanwa. Kubalulekile ukuba uqaphele ukuba i-rocker, kwindawo yokugqibela, ayinakukwazi ukuya kwindawo ye-collinear ye-rack okanye i-rack yerakhi, kwaye i-angle ye-rack, kunye ne-wing ye-swing kufuneka ingaphantsi kwe-180 °.

Ukuqukumbela, ngokuhlalutyo, ngokuhlalutya ubudlelwane phakathi kwentshukumo yesalamane, ubungakanani besalathisi, kunye nenqanaba le-rods yokudibanisa kwi-chain ye-hinematic ye-hinematic, sinokuchonga uhlobo lwendlela kunye nokusikelwa umda. Ngokuqonda le migaqo, iinjineli kunye nabaqulunqi zinokuphuhlisa kwaye zisebenze ngeendlela ezahlukeneyo zendlela yezicelo ezithile.