conduct a full kinematic analysis and calculate dynamic reaction forces in a linkage mechanism, calculate instantaneous torque, required to drive the mechanism Figure 1. Left: An operating pumpjack linkage mechanism. D G E beam is equal to Φ B T H WOA Right: A mechanical Figure 1 shows a pumpjack operating at an oil well. Its representation as a linkage is also shown in Figure 1. The pumpjack is driven by a motor attached to crank OA. A constant torque T'is applied to the crank and the crank rotates at a constant angular velocity wOA. A force P is applied vertically downwards at the end of the walking beam BD, which has its centre of mass at point G. To design the mechanism, a careful kinematic analysis of the mechanism needs to be conducted. To avoid mechanical failure and to provide adequate support to the mechanism, the engineer needs to analyse the reaction forces in the joints. Masses of links OA and AB are assumed to be smaller in comparison with the mass of BD and are ignored in the analysis. Magnitude of force P is equal to 10 kN and it is directed vertically upwards. At the instant shown, perform the following tasks using the individual values of lengths OA, AB, BC, OE, CE, L, H, angle ß, angular velocity wOA, mass mBD, and moment of inertia JBD. Length of the walking beam BD is equal to 2-BC. Distance CG from point C to the centre of mass of the walking BC
conduct a full kinematic analysis and calculate dynamic reaction forces in a linkage mechanism, calculate instantaneous torque, required to drive the mechanism Figure 1. Left: An operating pumpjack linkage mechanism. D G E beam is equal to Φ B T H WOA Right: A mechanical Figure 1 shows a pumpjack operating at an oil well. Its representation as a linkage is also shown in Figure 1. The pumpjack is driven by a motor attached to crank OA. A constant torque T'is applied to the crank and the crank rotates at a constant angular velocity wOA. A force P is applied vertically downwards at the end of the walking beam BD, which has its centre of mass at point G. To design the mechanism, a careful kinematic analysis of the mechanism needs to be conducted. To avoid mechanical failure and to provide adequate support to the mechanism, the engineer needs to analyse the reaction forces in the joints. Masses of links OA and AB are assumed to be smaller in comparison with the mass of BD and are ignored in the analysis. Magnitude of force P is equal to 10 kN and it is directed vertically upwards. At the instant shown, perform the following tasks using the individual values of lengths OA, AB, BC, OE, CE, L, H, angle ß, angular velocity wOA, mass mBD, and moment of inertia JBD. Length of the walking beam BD is equal to 2-BC. Distance CG from point C to the centre of mass of the walking BC
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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