Finding the value of sectional modulus of shaft having diameter 3 m
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- Shaft 2a cos 0 R Groove Figure P7-5.5 Compute tmax in terms of M and a for a = 60°, a = 45°, and a = 30° (Fig. P7-5.5). Compute t at the point P for these cases. Verify that trz = tyz = 0 for corners A and B. U%3DObtain a preliminary design of the shaft by performing the following tasks. Note that forces T1=2880 N and T=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 T, 280 mm 30-mm dia. T, 300 mm 250-mm dia. 400-mm dia. 270 Nx 1800 N a) Sketch a general shaft layout in 2D (x – y axes), including all components and torques, then calculate all reactions. : b) Based on the current shaft dimensions and using only forces at B and C, find the lowest critical speed of the shaft. (; c) Determine the fatigue factor of safety of the rotating shaft with the current dimensions using the DE-Gerber criteria. Use Eqs. 6-8 and 6-18 to find the endurance limit, account only for ka and k, in Eq. 6-18 and assume all remaining factors…Compute the torsional shear stress in a hollow shaft with an outside diameter of 40 mm and an inside diameter of 30 mm when transmitting 28 kilowatts(kW) of power at a speed of 45 rad/s.
- A uniform shaft of diameter 30 mm is subject to a 60 N of tangential force. Calculate the shear stress induced in the shaft.A solid 2.0 in. diameter shaft is used to synchronize multiple mechanisms in a manufacturing plant. The torque delivered by the shaft is 3300 Ib-in. What horsepower must be delivered to the shaft to maintain a shaft speed of 590 rpm? What is the maximum shear stress developed in the shaft? Answer: P = hp psi Save for Later Attempts: 0 of 1 used Submit AnswerA hollow shaft with a length of 1103mm and outer diameter 73mm and inner diameter 50mm is required to tranmit a power of 60kW at a speed of 2950 rpm if the modulus of rigidity is 79.5GPa calculate the polar second moment of area of the shaft
- The sbaft shown overhangs a bearing on the right and has the following dimensions: a - 5 in., b - 4 in., and - 10 in. The material is AISI C1040. annealed. This shaft is subjected to a torque T 10,000 in-lb., forces F - 10,000 lb. and F, 20,000 lb. Using a atatio-design approach, determine the diameter D for N 2.5, with eomputa- %3D Answer: a) Dia. = _inches %3D %3D %3D tions from the maximum shear stress theory. Note: Use Sy = 48,000 psi F2 N MCompute for the induced compressive stress in kPa, of a steel shafting of 59 mm diameter and 954 m in length that issubjected to an increase of temperature of 88ºC. Use 6.5x10-6/F, E = 30x106 psi.Micro Bh Micros Bb Micros - с * Question Completion Status: Question 2 2.0 d=1.50 in. dia. 1.9 1.8 Class r = 0.08 in. The figure below show a stepped shaft in torsion. Compute the maximum shear stress at the step when it rotates at 100 rad/s and transmits 5000 lb-in/s. Use CamScanner app or Notes app of iPhone to scan all hand-written pages into one PDF file. Attach the PDF file here to answer in this question. Class ( bbhosted.cuny.edu/webapps/assessment/take/take.jsp?course_assessment_id=_2374 Class D = 2.00 in. dia. r= Fillet radius Class G Cuent Projec suntur Et WA AS hp
- The rotation or twist in degrees of a shaft, 800 mm long subjected to a torque of 80 N-m, 20 mm in diameter and shear modulus G of 80,000 MPa is:QUA four stroke internal combustion engine has the following specifications: Brake power 7.5 kW; Speed 1000 r.p.m.; Indicated mean effective pressure 0.35 N/mm2; Maximum gas pressure 3.5 N/mm2; Mechanical efficiency - 80 %. Determine: 1. The dimesions of the cylinder, if the length of stroke is 1.4 times the bore of the cylinder: 2. Wall thickness of the cylinder, if the hoop stress is 35 MPa: 3. Thickness of the cylinder head and the size of studs when the permissible stresses for the cylinder head and stud materials are 45 MPa and 65 MPa respectively. Any other data required for the design may be assumed.A. It is the torsional parameter equal to twice the product of the area enclosed by the centerline of the tube and the shear flow Choices: Angle of twist Torque Modulus of rigidity Torsional stress B. The first moment of area, Q is maximum at: Choices: Minimum “b” Neither of the choices Both maximum and minimum “b” Maximum “b” C. The statement “Flexural shear stress is maximum at the neutral axis” Choices: Is always true Depends on the value of Q Is not possible Is sometimes true D. It is the boundary condition for a fixed support Choices Y=0 Either of the choices Both choices Y’=0 E. It is the measure of resistance to shear deformation Choices: Modulus of Elasticity Modulus of Toughness Modulus of Rigidity Modulus of Resilience note: please help me in this word meaning sample problems thank you