7 For the linkage shown in the figure below, answer the following. Assume Link 2 is the driving link and theinput angle is relative to horizontal. In the current position, the input link angle is 0, =-35.BL4 = 0.86L = 1.85L = 2.2204AP = 1.33L2 = 0.86a. Is this linkage in an open or crossed configuration?b. On the figure below, draw the other circuit of the linkage for the given input angle.c. Define all link angles on both figures. Give approximate values for the link angles 0, and 0, in both theopen and crossed configurations. Remember that all angles are defined relative to the horizontal, andpositive counter-clockwise.

It is asked to specify the configuration of the mechanism shown below. Also draw the circuit with a…

Answered: For the linkage shown in the figure…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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1. Find a combination of link lengths where motion of a point on output link is one quarter of a circle. 2. Find the value of all 0, 0, 0, and y in open and close configuration Read the value of link lengths and the input angle 8., then use the formulae given below to calculate the value of unknowns 03, 0, and y K₁ = = K₂= d K2 K3 = a²-b²+c²+d² 2ac A = cos 0₂ - K₁ - K₂ cos 0₂ + K3 B = -2 sin 0₂ C = K₁ (K₂ + 1) cos 02 + K3 -B± √B²-4AC 2A 0412 = 2tan-1 d K₁ = — K5 = c²d²a²-6² 2ab D = cos 0₂ - K₁ - K4 cos 0₂ + K5 E = -2 sin 0₂ FK₁+ (K₁ - 1) cos 02 +K5 0312 2 tan-1 (-E± -E± √E²4DF 2D Y = 04-03
The link lengths and the value of 2 and offset for some fourbar crank-slide linkages are defined in Table 1. The linkage configuration and terminology are shown in Figure 1. For the rows assigned, find (a) all possible solutions for angle and slider position d by vector loop method. (b) the transmission angle corresponding to angle 83. (Hint: Treat the vector R4 as virtual rocker) Show your work in details: vector loop, vector equations, solution procedure. Table 1 Row a b с offset 02 Link 2 1.4 3 5 A R2 0₂ Link 3 4 8 20 slider axis. R3 Link 3 R₂ d R₁ Figure 1. 0₁ Offset 1 2 -5 С B R4 T 84 X Q2 45° -30° 225°
Q1: For a four-bar linkage. If a=5.5m, b=6m, c=8m and d=D10m. 1: Find the minimum of the transmission angle in degrees 2: Find the maximum of the transmission angle in degrees 3: Find 0, at the toggle positions in degrees bola
4. A general fourbar linkage configuration and its notation are shown in the following figure and table. Find a 3, a 4,A¼, ABA, AB,Ap for open circuit by vector loop method. Row Link 1 Link 2 Link 3 Link 4 02 Rpa 63 6 2 7 9 30 10 6 30 - 12 - 15 7 3 8 85 25 3 10 6 8 45 -10 10 80 d 7 25 24 - 4 45 e 75 -50 10 300 Rp B A 03 2 X 04 NO O55
Figure below shows a four-bar linkage (non-scaled diagram) at an instant. The input angle is equal to the output angle (02 - 04) and the transmission angle is 30°. The input link is extended beyond joint B and an input force (Fin) is applied at the end of it, while an output force is drawn from the midpoint of the output link. If an output force of 30 N is desired from an input force of 10 N, how far the input link should be extended, i.e., what is the distance from point B to the point where Fin is applied. Fin B out undefined 02 04 A. Non-scaled diagram; AB = 10, CD=r4 = 30 (output), all in mm
Problem 3: The RPH robot of Figure 3 is shown in its zero position. Determine the end- effector zero position configuration M, and the screw axes S; in {s}. n. F -inta. Sorowo- Zs {s} Xs L₁ ŷs Lo 0₁5 L2 02 {b} zb 103 pitch h = 0.1 m/rad Ấb ŷb L3 Figure 3: An RPH open chain shown at its zero position. All arrows along/about the joint axes are drawn in the positive direction (i.e., in the direction of increasing joint value). The pitch of the screw joint is 0.1 m/rad, i.e., it advances linearly by 0.1 m for every radian rotated. The link lengths are Lo = 4, L₁= 3, L2= 2, and L3= 1 (figure not drawn to scale).
= Given the crank-slider linkage shown in Figure 1 with the linkage lengths as follows: L₂= 500 mm, L32 250 mm, and L₁= 550 mm. The distance between the supports is L₁ = 500 mm. When the angles of the links are 8₂ 36.87° and 83 53.13° the rotational angle rates of the links are wz 8 rad/s and w3 = -11.8859 rad/s. If the link R, is rotating in counterclockwise (CCW) direction with a rotational acceleration of az 5 rad/s², determine the rotational acceleration of links R₂ and the acceleration of the slider R2 03 R₁ R3 isin) R4
The linkage in the following figure has O2A = 0.8, AB = 1.93, AC = 1.33, and offset = 0.38 in. The crank angle in the position shown is 34.3° and angle BAC = 38.6°. Find a 3, A4, Ag and Ac for the position shown for 02 = 15 rad/s, a2= 10 rad/sec² in direction shown. 5. a) Using the acceleration difference graphical method b) Using an analytical method. A 3 B 02 4 1
The figure below shows a four- bar linkage. If a=5m, b=7m, c=9m, d=10m, 0=60°, O-10°, a=30° and w2=1rad/s. (The figure is not to scale) Find the minimum transmission angle in degrees Find the maximum transmission angle in degrees Find toggle angle in degrees
Problem 2 The linkage in Figure P7-5b has O,A = O2A = 0.75, AB= 1.5, and AC = 1.2 in. The effective crank angle in the position shown is 77° and angle BAC = 30°. Find a3, A4, AB,Ac for the position shown for @2 = 15 rad/sec and a2 = 10 rad/sec in the directions shown using an analytical method. (Hint: Create an effective linkage for the position shown and analyze it as a pin-jointed fourbar.)the linkage has a parallelogram form Assume rolling contact C @2 A 3 В a2 2 4 04
Slide B travels along the center line XX'. Q2A = 18 cm, AB = 72 cm. 1. With the crank in the position shown, draw the four bar linkage. Name each link and show the finite and infinite cranks.2. Find the two extreme positions of block B. Express your answer in terms of the acute angle formed by crank Q2A with the horizontal axis (like the angle 45° in the figure)3. Determine the length of the stroke of B. Write your answer in two decimal places.
The Figure below shows a sixbar linkage with 02B = 1, BD = 2, DC = 4, DO, = 3, and h = 1.3 in. Use analytical method to find the m3, a3, Ac , Ap, a6 if wz is a constant 1 rad/sec CCW. Vp-0.6 in/sec, Vslip-0.75 in/sec, ApBslip=1.03 in/sec? 6. 06 B 4 3 45° 02

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