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NAME Question 1 (6/20) ANSWER ON THE YELLOW PAGES The nose wheel of the landing gear of an aircraft is extended and retracted by applying a torque M to the rod BC by means of an shaft located at point B. The rod AO, on which the landing wheel is also located, has a combined mass of 100 kg which may be simplified to a point force at point G. The masses of the bars CD and BC may be neglected. If the point D is located underneath point B, the rod CD is at an angle of 30° to the vertical y-axis. At this position the landing gear should be kept stationary, dynamic effects may therefore be neglected. All components are made out of stainless steel with max=200 MPa and Imax = 75 MPa. ALO d. 800 mm 400 mm 200 mm B 300 D M 500 mm OC 500 mm A D Questions, also draw all relevant free-body diagrams: a. Calculate the magnitude of the reaction force at point A. b. Calculate the minimum diameter of the pin in point A. The connection in point A is realized as shown on the right figure. Use a safety factor of 1.25 for the calculation. c. Calculate the torque M which needs to be applied by the engine to the shaft B to keep the landing gear in static equilibrium. Calculate the minimum diameter of motor shaft B needed to withstand this torque. Neglect the possible stresses on the shaft as a result of normal forces, shear forces and bending moments. Use a safety factor of 1.25 for the calculation.

NAME Question 1 (6/20) ANSWER ON THE YELLOW PAGES The nose wheel of the landing gear of an aircraft is extended and retracted by applying a torque M to the rod BC by means of an shaft located at point B. The rod AO, on which the landing wheel is also located, has a combined mass of 100 kg which may be simplified to a point force at point G. The masses of the bars CD and BC may be neglected. If the point D is located underneath point B, the rod CD is at an angle of 30° to the vertical y-axis. At this position the landing gear should be kept stationary, dynamic effects may therefore be neglected. All components are made out of stainless steel with max=200 MPa and Imax = 75 MPa. ALO d. 800 mm 400 mm 200 mm B 300 D M 500 mm OC 500 mm A D Questions, also draw all relevant free-body diagrams: a. Calculate the magnitude of the reaction force at point A. b. Calculate the minimum diameter of the pin in point A. The connection in point A is realized as shown on the right figure. Use a safety factor of 1.25 for the calculation. c. Calculate the torque M which needs to be applied by the engine to the shaft B to keep the landing gear in static equilibrium. Calculate the minimum diameter of motor shaft B needed to withstand this torque. Neglect the possible stresses on the shaft as a result of normal forces, shear forces and bending moments. Use a safety factor of 1.25 for the calculation.

Elements Of Electromagnetics
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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NAME Question 1 (6/20) ANSWER ON THE YELLOW PAGES The nose wheel of the landing gear of an aircraft is extended and retracted by applying a torque M to the rod BC by means of an shaft located at point B. The rod AO, on which the landing wheel is also located, has a combined mass of 100 kg which may be simplified to a point force at point G. The masses of the bars CD and BC may be neglected. If the point D is located underneath point B, the rod CD is at an angle of 30° to the vertical y-axis. At this position the landing gear should be kept stationary, dynamic effects may therefore be neglected. All components are made out of stainless steel with max=200 MPa and Imax = 75 MPa. ALO d. 800 mm 400 mm 200 mm B 300 D M 500 mm OC 500 mm A D Questions, also draw all relevant free-body diagrams: a. Calculate the magnitude of the reaction force at point A. b. Calculate the minimum diameter of the pin in point A. The connection in point A is realized as shown on the right figure. Use a safety factor of 1.25 for the calculation. c. Calculate the torque M which needs to be applied by the engine to the shaft B to keep the landing gear in static equilibrium. Calculate the minimum diameter of motor shaft B needed to withstand this torque. Neglect the possible stresses on the shaft as a result of normal forces, shear forces and bending moments. Use a safety factor of 1.25 for the calculation.
Transcribed Image Text:NAME Question 1 (6/20) ANSWER ON THE YELLOW PAGES The nose wheel of the landing gear of an aircraft is extended and retracted by applying a torque M to the rod BC by means of an shaft located at point B. The rod AO, on which the landing wheel is also located, has a combined mass of 100 kg which may be simplified to a point force at point G. The masses of the bars CD and BC may be neglected. If the point D is located underneath point B, the rod CD is at an angle of 30° to the vertical y-axis. At this position the landing gear should be kept stationary, dynamic effects may therefore be neglected. All components are made out of stainless steel with max=200 MPa and Imax = 75 MPa. ALO d. 800 mm 400 mm 200 mm B 300 D M 500 mm OC 500 mm A D Questions, also draw all relevant free-body diagrams: a. Calculate the magnitude of the reaction force at point A. b. Calculate the minimum diameter of the pin in point A. The connection in point A is realized as shown on the right figure. Use a safety factor of 1.25 for the calculation. c. Calculate the torque M which needs to be applied by the engine to the shaft B to keep the landing gear in static equilibrium. Calculate the minimum diameter of motor shaft B needed to withstand this torque. Neglect the possible stresses on the shaft as a result of normal forces, shear forces and bending moments. Use a safety factor of 1.25 for the calculation.
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