A 4 linkage machine shakes the floor and other machines around it. Please help e
ID: 1841600 • Letter: A
Question
A 4 linkage machine shakes the floor and other machines around it. Please help eliminate these shaking forces by reshaping link 2 and 4. m_2b_2^i omega_2 = m_3[b_3 l_2/l_3 e^i phi_3 - l_2] m_4b_4^e^i phi_4 = -m_3 b_3 l_4/l_3 e^i phi_3 a) Draw a picture of the current machine on page 2. The picture must be drawn to scale. The picture must accurately reflect the locations of all information in the above table. b) Determine new link 2 shape to reduce shaking loads on the ground using Berkof Lowen method. a. add _________ in blobs @ _________ degrees b. Total MR product = ________ in blobs @ _________ degrees c) Determine new link 4 shape to reduce shaking loads on the ground using Berkof Lowen method. a. add = _________ in blobs @ _________ degrees b. Total MR product = __________ in blobs @ _________ degrees d) (10) Link 2 and 4 CG lengths (B) cannot exceed 2 inches. Determine: a. Minimum link 2 mass: _________ blobs b. Minimum link 4 mass: _________ blobs e) Draw a picture of your new machine on page 3. The picture must be drawn to scale. The picture must accurately reflect the location of link 2 and link 4 new CG direction, location, and total mass.Explanation / Answer
The balancing of mechanism is a well known problem in the field of mechnical engineering because the variables dynamic loads cause noise, weaar and fatigue of the machines.the resolutions of this problem consists in the balancing of th shaking force and shaking moment ,fully or partially by internal mass redis tribution or by adding auxiliary links. from very ancient times, with bulding works that werewidely carried out , differen auxililary technical means appreared in which various simple mechanisms were used. the practical experienceof creators of such mechanisms showed that in many cases,during the displacement of heavy objecs. the necessary arose for compensationsof moving masses vy additional means.