Question

Synthesize a mechanism that can be operated by a motor that provides continuous rotation such that the coupler achieves the positions shown below. This will need to be a two-step process. 1) Generate a four-bar mechanism that can achieve the desired positions for the coupler link. 2) Add a driver dyad to limit the motion to the extreme positions (making the whole thing a 6-bar mechanism). The driver should be able to fully rotate. 3) Label and report the length of the links in your mechanism. If you need more room: you can copy and past the image below to another page. B1 A2 A1 B2 A3 B3

Answer 1

0 а bata from the giren question Generate four bar mechanism that can achieve the desired position for the couple link, for continuous relative notion four bär mechani- should satisfy the Girashoff's law. Grashoff's law sm Р S 9 71777 Som plength of shostest lint + Llength of longest til IN sum of lengths of other two links p19 c B P q 5 C D e stl 2 Ptq → 407100 4 90/70 1404 160. : it is a four bar chain, Lincmatic chain let.us assume length of the links. S=u0mm =AB= Driver (input link) d = 100mm -A0 = fized link. P = gomm = BC =) couple ink q= 70mm - CD) Driven link colp links.

2 stl z Ptq L Crank-rocken mechanism F (2) Six link mechanism. links E FC Blink3[couple linkb COP) link linka 4 (012) (rank), imput А G linki (frame) Linkle A623) fized Knir (frame) link 2 - AB = impot (driver) link. Link3= BC = couple 7 Link4=CD = olplink Links-EF = coupler link b = FG =) output link. B ac couples) link3 linku (olp) (IP) Crank linr2 EA D - link2. Vink's linti (fixed) slidder link: AD: linre fixed Mint Cor) Frame colpj. Gi LOK AB - input link (duivo AG 7777 BC = link3- couples CD: linku 3 Olp link. coscillating link). EF= links + couples. Ge linke Slider - Olp Link.

mchanism 3 Dimensions of six link Grashop's law. stl z proto hot100 90.+60 +90 140 L2uo Satisfy the law. =) sotary motion converted into recipracating C inotion. linkulg) link312) E B únics() S 60 AT 77171717 1140 liardslido) linni (1) 30177o) VG - que E AD: linki = 100nn fiard link. link27 AB= crank- uomm BC = 1ink 3 -7 90mm = coupler CO - linku =) 70mm Ef= inc5 =90mm x; distance between slide - 3000 fixed linkt and DE = 35 mm