Ex. Determine the safety factor for the bracket rod shown below for N = 6 x 107 Cycles. The notch radius at the wall is Y=0.25 cm.. the braket is made from Aluminum 2024, Cold-drawn with σy, 290 MP 441 MPa. L = 10 cm, a = 8 cm, d = 2cm. "Out = d Wall A rod arm a F
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- pls answerThe induced nominal stress in a machine member is 28 N/mm? and the value of maximum stress near the irregularities is 61N/mm?, the value of stress concentration factor is SCF, K = Bearings are designated by a standard number internationally, the first digit in the bearing number 6409 represents type of the bearing. Select one: O True O False The value of curvature correction factor k; will be . if the spring index is 6. O a. 1.33 O b. 1.08 O c.0.,92 O d. 4.00 The figure below shows the components of normal forces, the value of radial force on the gear wheel due to a tangential force of 642 N is . N, Take pressure angle as 1420. Pitch point P. Gear driven 02 The radial force is2. A cylinder with a nominal 2.5 inch ID, a 4.0 inch OD, and a 3.0 inch length is to be mated with a solid shaft with a nominal 2.5 inch diameter. The cylinder and shaft are made from steel, with Sy = 100 kpsi and E 30 Mpsi. The coefficient of friction for the steel interface is 0.7. = The maximum and minimum allowable diameters for both the cylinder hole and the shaft are given as Dmax=2.5012 inch, Dmin=2.5 inch; dmax=2.5028 inch, dmin=2.5021 inch (a) (b) Determine the maximum amount of torque that can be transmitted through this joint, assuming the shaft and cylinder are manufactured within their tolerances. Determine yielding condition for the cylinder, due to the stress from the interference fit. Use the Von Mises yielding theory.
- Q1: Find the Diameter of the shaft macle of A cold-drawn steel. Assume hat ultimate stress is 370 MPa and the factor of the safety is 3. For pulley A consider 250 Dia. the loose belt tension is 15 percent of the tension on the tight side. *All dimensions units are in mm. 300 Tz A 400 T₂ 50 N. 270 N. 45° 150. 300 Dia. T P x 60 2 KN T = (T₁ - T₂) Rc Tw M z 16 + T² xxx d³Please help me, I need a solution quickly, the exam will be overA differential band brake is shown in Figure. The diameter of the drum is 800 mm. The coefficient of friction between the band and the drum is 0.3 and the angle of embrace is 240°. When a force of 600 N is applied at the free end of the lever, find for the clockwise rotation: a) The maximum and minimum forces in the band b) The torque which can be applied by the brake.
- 1. A collar is fitted as a tight fit on a solid shaft. In the measurement made before assembly, the outer diameter of the ring is dga=159.97 mm, the inner diameter is dgi= 100.03 mm, and the outer diameter of the shaft is dma= 100.048 mm. After assembly; a. What is the surface pressure between the shaft and the ring? b. What is the maximum shear stress? Given: Material pair steel/steel P E=2.1x10$ N/mm?, Tmax (1-Q¿)2 oneanh The bearing is subjected to radial load of 7535 N, the desired life of the bearing is 170 million of revolutions at 425 rpm. When equivalent load of 16.964 kN is acting, Find the suitable axial load by taking factors. X-0.75,Y=2.5,V=1 Select one: O a. 467.5 kN O b. 6823 N OC. 4525 N O d. 84.765 N hpDraw FBD and determine Stress and Safety Factor of Bicycle Axle (Thru Axel) Specification Weight of cyclist = 120 kg. Materials: Aluminum alloy (AL 6061-T6) Dimension: Length = 122 mm, Diameter = 12 mm, Thread pitch = 1.75 mm, Thread Length = 16 mm.
- The head of a 300 mm diameter cylinder vessel will be designed. The internal pressure in the cylinder is Pin = 1MPA. The bolts have initial tightening load of 12 kN. a) Find the stiffness of the bolt and members. b) Determine the number of bolts (N) for a safety factor of 2 for fatique loading. IMPA D= 300 mm M 10 1.5 grade 5.8 cast iron E= 200 GPa Eci= 90 GPaIn Fig. 6-38 the maximum lining pressure for any point on the brake is to be limited to 100 psi; μ = 0.2. Find the torque capacity of the brake and the value of force P. Ans. T = 9,080 in-lb, P = 487 lbA collar is fitted as a tight fit on a solid shaft. made before assembly in measuring, the outer diameter of the ring is dga=159.97 mm, the inner diameter is dgi= 100.03 mm, the outer diameter of the shaft is dma= 100.048 mm. After assembly; a. What is the surface pressure between the shaft and the ring? b. What is the maximum shear stress? Given: Material pair steel/steel E=2.1x105 N/mm2 , Tmax = P (1/QG^2)