Figure Q2-2 shows a schematic of a retractable landing gear of aircraft.The retraction mechanism is a 4 bar linkage (O1ABO2), which is actuatedby a hydraulic cylinder and piston, D, pivoted at E with a joint at C to linkO,A.Hydraulic cylinder& piston DJoint for landinggear wheelFigure Q2-2Use the Gruebler's equation of DoF (Degrees of Freedom) of alinkage mechanism to assess if the landing gear produces therequired retraction motion. 0,02 may be considered as the groundlink.i)Hint: The joint of the wheel is not part of the linkage mechanism.The number of DoF may be used to check if it is a linkage withcertain motions or a fixed structure.ii)The dimensions of the 4 bar linkage (O1ABO2) are measured asO102 = 800 mm, O1A = 780 mm, AB = 200 mm and O2B = 400mm. Use Grashof condition to determine the specific type of thislinkage.You may find the Gruebler's equation useful:M = 3(L – 1) – 2Jwhere, M is degree of freedom (DoF)L is number of linksJ is number of joints

Answered: Image /qna-images/answer/f1e60984-85e6-43d2-ab2d-56ecc2a2f943.jpg

Figure Q2-2 shows a schematic of a retractable landing gear of aircraft. The retraction mechanism is a 4 bar linkage (01ABO2), which is actuated by a hydraulic cylinder and piston, D, pivoted at E with a joint at C to link O,A. Hydraulic cylinder & piston D OB Joint for landing gear wheel Figure Q2-2 i) Use the Gruebler's equation of DoF (Degrees of Freedom) of a linkage mechanism to assess if the landing gear produces the required retraction motion. 0,02 may be considered as the ground link. Hint: The joint of the wheel is not part of the linkage mechanism. The number of DoF may be used to check if it is a linkage with certain motions or a fixed structure. ii) O102 = 800 mm, O1A = 780 mm, AB = 200 mm and O2B = 400 mm. Use Grashof condition to determine the specific type of this linkage. The dimensions of the 4 bar linkage (O1ABO2) are measured as You may find the Gruebler's equation useful: M = 3(L – 1) – 2J where, M is degree of freedom (DoF) L is number of links J is number of joints

Figure Q2-2 shows a schematic of a retractable landing gear of aircraft. The retraction mechanism is a 4 bar linkage (01ABO2), which is actuated by a hydraulic cylinder and piston, D, pivoted at E with a joint at C to link O,A. Hydraulic cylinder & piston D OB Joint for landing gear wheel Figure Q2-2 i) Use the Gruebler's equation of DoF (Degrees of Freedom) of a linkage mechanism to assess if the landing gear produces the required retraction motion. 0,02 may be considered as the ground link. Hint: The joint of the wheel is not part of the linkage mechanism. The number of DoF may be used to check if it is a linkage with certain motions or a fixed structure. ii) O102 = 800 mm, O1A = 780 mm, AB = 200 mm and O2B = 400 mm. Use Grashof condition to determine the specific type of this linkage. The dimensions of the 4 bar linkage (O1ABO2) are measured as You may find the Gruebler's equation useful: M = 3(L – 1) – 2J where, M is degree of freedom (DoF) L is number of links J is number of joints

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

See similar textbooks

Similar questions

Pls help me with my plates Block 4 slides in the slot in the fixed piece 1. Axis Q2 of crank 2 is fixed on 1. Q2A = 1.5 inches, and AB = 4.5 inches. Draw the mechanism, assuming dimensions for 1, if desired or use center lines only. Draw the four-bar linkage for this mechanism, properly rotate the linkage Q2ABQ4∞, name each link, and show the finite infinite cranks.
A offset crank-slider mechanism is used in a conveyor loading device. Find the crank length in mm required to generate this motion. Use the design parameters specified below. (Note: A is the crank pivot; C is the coupler-slider joint; B is the coupler-crank joint). - CBDC: 107 mm below and 140 mm to right of A (Note: BDC=Bottom-Dead-Center) - Stroke: 52 mm along a 42° incline (This direction: /. Not this direction: \)
O2BCO4 is a four-bar linkage. O2 and O4 are fixed centers on a horizontal line 10 in apart. O2B is a link 5 in long oscillating about O2. O4C is a crank 2 1⁄2 in long which rotates about O4. BC is a connecting rod 11 1⁄2 in long. O2 is to left of O4. A link, EF, 6 in long, is pinned to O2B at E, 1 1⁄2 in from B. Another link, GF, 3 1⁄2 in long, is pinned to link BC, 4 in from C. These links, EF and GF, are pinned together at F in their upper position.Trace the paths of the points F and G while driver O4C makes 1 complete revolution. Find points for each 15o position of O4C and any others necessary in order to secure a smooth curve.
Design a fourbar linkage for a windshield wiper mechanism such that the wiper blade moves between the two positions (CD, C'D') spending equal time back and forth. The ground link to which the crank is attached must be located within the shaded region shown on bottom right. Verify that the linkage is Grashof.
A crank-rocker mechanism is to be used to drive a ratchet mechanism. Using mathematics and specific illustrations, find the required coupler length in inches required to generate this motion. The swing of the rocker is 35.0 from the vertical position in each direction. (Note: O2 is the crank pivot; O4 is the rocker pivot; C is the coupler-rocker joint; B is the coupler-crank joint). O2O4: 4.1 in.; lies in the horizontal plane O4C: 4.8 in.; mid stroke is vertical
a. Sketch the kinematic diagram of the following mechanism shown and give brief description on how each link move relative to each other. Compute the degree of freedom.b. Determine the location of all revolute pairs shown in the figure as the tip of the loadermoves from L to L’.
Only problem 2.3-3
Block 4 slides in the slot in the fixed piece 1. Axis Q2 of crank 2 is fixed on 1. Q2A = 1.5 inches, and AB = 4.5 inches. Draw the mechanism, assuming dimensions for 1, if desired or use center lines only. Draw the four-bar linkage for this mechanism, properly rotate the linkage Q2ABQ4∞, name each link, and show the finite infinite cranks.
Solve the mobility of the linkage.
A crank-slider mechanism is constructed so that the slider operates in a horizontal plane 3 inches below the horizontal plane in which O2 falls. O2B = 4.5 inches (crank; O2 is pivot) BC = 12 inches (coupler). Please analyze the mechanism and provide the following: -When the mechanism is in the extended position, what is the distance between the crank pivot point and the slider joint? -When the mechanism is in the collapsed position, what is the distance between the crank pivot point and the slider joint? -What is the stroke of the slider? -When the mechanism is in the extended position, what is the horizontal distance between the crank pivot point and the slider joint? -When the mechanism is in the collapsed position, what is the horizontal distance between the crank pivot point and the slider joint?
1. Sketch kinematic diagram 2. Identify number of links, 1 dof joints, 2 dof joints, and 3 dof joints. 3.Calculate the number of degrees of freedom for each mechanism. Please calculate the degrees of freedom only for the mechanism of the toilet tank shown in the picture
In an open belt drive, two sheaves have diameters of 5 in. and 12 in. Determine the center distance of a drive utilizing a 72-in. belt. Also determine the angle of contact over the smaller sheave. Draw a 3d model of the mechanism.