6. A drone motor can apply a maximum torque of T = 2.1 N. m. At the start of the rotation, the propellergets stuck and cannot spin, additionally causing a maximum bending moment of M = 1.0 N. m. Themotor shaft is made of a hardened tool steel with a diameter of d = 1.5 mm and mechanical propertiesof E = 210 GPa, v = 0.32, K₁ = 42 MPa√√m and σ = 5.2 GPa. A small scratch of depth a is madeon the surface of the shaft.a. What are the principle stresses in the shaft?b. If we assume the shaft fails in a brittle manner, will the shaft fail?c. How deep can the scratch be if we want a fracture factor of safety of X- = 2? Assume the worst-case crack is oriented orthogonal to the max principal stress (σ₁) and the concentration factor isY = 1.12.wwwwwwMTdSurfaceScratch

1. Notations and Given ValuesPoints: O, B, C, D, and E represent the centers of the joints as…

Answered: 6. A drone motor can apply a maximum…

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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dia ry Albert B 4/3 4/6 4/6 4/3 Your answers: 0x = Tv = TT = Tmax= 1² Problem Statement: = A solid circular shaft with diameter D = 2 in, length L 36 in is simply-supported at both ends, and further restrained from spinning around x at x=0. The shaft is subjected to a downward uniform distributed load q 50 lbf/in over 1/3 of the span, centered around the mid-span, in the region x=L/3 to x=2L/3. Downward means in the negative y-direction. Also, torque T = 4000 lbf.in and axial force N = 2000 lbf are applied at x=L. = N Draw the shear and bending moment diagrams, and using that, calculate at x = L/2, y = D/2: • The normal stress , which is the sum of the axial stress N/A plus the bending stress -yM/I. • The shear stress due to shear V. • The shear stress due to torque T. • Draw Mohr's circle 2D and from it calculate the max. shear stress. Answer tolerance = 2%. Be sure to include units and sign according to the convention shown in the videos and Figures 3-3 and 3-17 in the textbook. Even…
A shaft having length equal to 10 m and diameter equal to (50+ 01) mm is simply supported at both ends. The shatt carries four masses (150 + 01) kg, (200 + 01) kg, (250 +01) kg and (300 + 01) kg. These masses are located at a distance of 1.5m, 2.5 m, 5.5 mand 7.5 m from the left hand side support, respectively. The modulus of elasticity, E, for the material of the shaft is 200 GN/m? and mass density for the shaft material is 7500 kg/m?3. Determine critical speed of the shaft in revolutions per minute for the following two cases: 1. Effect of the mass of the shaft is neglected. 2. Effect of the mass of the shaft is considered. What is the usefulness of the answers determined in this problem?
The figure shows a shaft mounted in bearings at A and D and having pulleys at B and C. The forces shown acting on the pulley surfaces represent the belt tensions. The shaft is to be made of ASTM grade 25 cast iron using a design factor na = 2.8. What diameter should be used for the shaft? 6-in D. 300 lbf 27 lbf 360 lbf D 6 in A 8 in 50 lbf B 8-in D. 8 in
Handwritten solution+FBD and explanation.
A shaft having length equal to 10 m and diameter equal to (50+ 16) mm is simply supported at both ends. The shaft carries four masses (150 + 16) kg, (200 + 16) kg, (250 + 16) kg and (300 + 16) kg. These masses are located at a distance of 1.5 m, 2.5 m, 5.5 m and 7.5 m from the left hand side support, respectively. The modulus of elasticity, E, for the material of the shaft is 200 GN/m2 and mass density for the shaft material is 7500 kg/m3. Determine critical speed of the shaft in revolutions per minute for the following two cases: Effect of the mass of the shaft is neglected. Effect of the mass of the shaft is considered. What is the usefulness of the answers determined in this problem?
A shaft having length equal to 10 m and diameter equal to (50+ 16) mm is simply supported at both ends. The shaft carries four masses (150 + 16) kg, (200 + 16) kg, (250 + 16) kg and (300 + 16) kg. These masses are located at a distance of 1.5 m, 2.5 m, 5.5 m and 7.5 m from the left hand side support, respectively. The modulus of elasticity, E, for the material of the shaft is 200 GN/m2 and mass density for the shaft material is 7500 kg/m3. Determine critical speed of the shaft in revolutions per minute for the following two cases: Effect of the mass of the shaft is neglected. Effect of the mass of the shaft is considered. What is the usefulness of the answers determined in this problem?
hello please help me this homework question considering the time limit I have less than 30min
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Problem 1: (P9, P10, M5, M7, D5) Obtain a preliminary design of the shaft by performing the following tasks. Note that forces T1=2880 N and T2-432 N. The maximum bending moment is at x =230 mm (point B), and it equals M= 698.3 N•m completely reversed, where the torque is constant at 612 N.m at the same point. The shaft material is AISI 1020 CD steel. Take the stress concentration conditions at B to be Shoulder fillet-sharp, with notch radius r=0.6 mm (Table 7-1). 230 mm 280 mm 30-mm dia. 300 mm 250-mm dia. 400-mm dia. 270 N X. 1800 N
TI=30NM, T2=155NM, T3=85NM and dBC=22mm. 12 010 T3 T2 T1 3-1892615112 D 010 b180106003- 1892615112 \dcp 1826151126 b180106003-18926 dBC B. `dAB b180100003-18926151126 In the figure above, torques TI, T2 and T3 are applied, respectively, to discs A, B and C on the shaft, which is fixed at point D. 3-1892815112s b180106003-18926 The diameters of the shaft segments are indicated in the figure and their values are given below (if they are required). Length of each segment on the shaft has the same value and is equal to L(AB)=L(BC)=L(CD)=400 mm. b180106003- 18926151126 Shear modulus of the material is 80 GPa. o-18926151126 b180108003-18926 Calculate the maximum shear stress g003-18926151126 003-18926 b18 on shaft segment BC. 010600s28151128 B A 46 MPa 60 MPа b180106003- 18926 b180106003- 1892615112 b180106003- 18928151126 38 MPa b180100003-1892615112 57 MPa b180106003- 18926151126 E b180108003-18928 31 MPа b180106003- 18926151126 b180106003- 18926151128 b180106003- 18928151126…
A simple diagram of a driveshaft ABC is shown in Figure 3. The power generated by an engine is transmitted via the drive shaft, ABC. The section AB is a solid circular shaft 0.7 m long and the section BC is a hollow circular shaft 1.0 m long with 110 mm outer diameter and 55 mm inner diameter. Both shafts are made from a metal alloy (Shear Modulus G = 95 GPa). 0.7 m 1.0 m A в 2400 hp @ 2000 rpm Figure 3 a) If the drive shaft rotates at 2000 rpm and the power transmitted along the shaft is 2400 hp (1 hp = 745.7 W), calculate the torque developed in the drive shaft.

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