IN Hange coupling, which of the following gives the expression for the number of bolts (by empirical formula)? (where: D Diameter of solid shaft in cm) Ops: A On (D/2) + 3 B. On = (D/S) + 3 C On = (3D/4) + 3
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- -100 Taper 1 in 100 /What is kind of shaft coupling illustrated in Figure (1), Draw tow views including one that show in figure where dimension of saddle key are (w=16, T-10mm) Figure (1)A flanged bolt coupling consists of six 2-in. steel bolts evenly spaced around a bolt circle 12 in. in diameter, and four 4-in. aluminum bolts on a concentric bolt circle 8 in. in diameter. What torque can be applied (kip-in) without exceeding 9000 psi in the steel or 6000 psi in the aluminum? Assume Gst = 12 x 106 psi and Gal = 4 x 106 psi. Numeric ResponseBolts distributed about a bolt circle are often called upon to resist an external bending moment as shown in the figure. The external moment is 19 kip-in and the bolt circle has a diameter of 15 in. The neutral axis for bending is a diameter of the bolt circle. What needs to be determined is the most severe external load seen by a bolt in the assembly. M Neutral axis R NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. View the effect of the bolts as placing a line load around the bolt circle whose intensity FÅ, in pounds per inch, varies linearly with the distance from the neutral axis according to the relation Fb Fb,max R sin 8. The load on any particular bolt can be viewed as the effect of the line load over the arc associated with the bolt. For example, there are 12 bolts shown in the figure. Thus, each bolt load is assumed to be distributed on a 30° arc of the bolt circle. Under these conditions, what is the largest bolt…
- Please answer in this format. Sketch: Given: Required: Solution: (Please answer in detailed (step by step). Indicate labels on what you are doing/performing, for example what formula is used) A torque To is transmitted between two flanged shafts by means of four 20-mm bolts. diameter of the bolt circle is 2=150mm. If the allowable shear stress in the bolts is 90 Mpa, what is the maximum permissible torque? Disregard friction between between flanges. The ToIn the Bolted Connection shown, find the following by ASD.Specifications:M20 Bolts in standard holes. Nominal hole diameter = 22mmEffective Hole diameter = nominal hole diameter + 2 mmA325 steel boltAssume thread in shear planeFv = 372 MPaProperties of Angle Bar< 125 x 125 x 13 mmA = 3065 mm²x = 36.3 mmy = 36.3 mmFy = 248 MPa , Fu = 410 MPa 1. For angle bars used as bolted tension element connected to another element only on one leg, the effective area Ae = UAn. Where: An = Net area, U = Shear lag factor = 1 – x/L, L= center to center longitudinal distance of extremely located fasteners, X= distance from centroid of angle bar to surface of contact of joined elements. What is the shear lag factor of our angular bar? a. 0.454 b. 0.9 c. 0.838 d. 0.869 2. Considering RUPTURE of angle bar, what is the allowable force P that the connection can handle if allowable RUPTURE stress in net area of angle bar is Fu/2 a. 463.83 kN….A flanged bolt coupling consists of six 12.5 – mm steel bolts evenly spaced around a bolt circle 300mm in diameter, and four 19 – mm aluminum bolts on a concentric bolt circle 200 mm in diameter.What torque can be applied without exceeding 62 MPa in the steel or 42 MPa in the aluminum?Assume Gst = 82.7 GPa and Gal = 27.6 GPa.
- 4. A solid shaft was made of alloy steel, it was welded to a flat plate by a specific size of fillet weld. If a torque is applied to the shaft, calculate the size of the weld joint. Power Torque Yield stress Shear stress Ultimate stress (Mpa) Compression stress (Mpa) Ductility (%) (kw) (Nm) 1000 (Mpa) 400 (Mpa) 160 280 30 Modulus of Bending Stress Bending Moment Factor of Safety Elasticity (GPa) (Mpa) 220 280 120 4 Modulus of Rigidity (pa) 70 Fracture stress (Mpa) 250M P 1: Y A :s.google.com Q1 * Find the number of bolts M8 1 which made from SAE Grade 4 steel that should be used to provide a clamping force of 60 KN between two components of a machine. Also, specify the required tightening torque. (Hint: assume that cach bolt is limited to be stressed to 65% of its proof strength). 1 Add file Q2 * A flat plate with a central hole is subjected to an axial tensile force F of 9.8 KN, as shown in the figure below. Calculate the minimum thickness t of the plate. Given that the material of the plate can support maximum tensile stress of 75 N.mm, w = 10 cm and d = 3 cm. Thickness =t F 1 Add file Submit Clear form II1 Example 2 Steel plates, both 8mm thick, No washers held together with M10 Corse Threaded bolt the bolt is 30mm long, threaded length of 26 mm d = 10 mm At = 58.0MM тв 6 bolt Find bulr stiffness (N/HM) ? member stiffness (N/mm)? and siffness constant of the join; C ? |||| S
- Solve the problem. A 11-in. connecting rod in an engine connects the wrist pin of a piston at point A to the end of a second rod at point on the crankshaft. As the piston moves forward and back, the crankshaft is turned counterclockwise around point C. The stroke length of the engine is the distance that the piston travels (one way) with its cylinder. If the stroke length is 4 in., and the engine turns at 600 rpm, write a model representing the distance d (in inches) from A to the center of the crankshaft Cas a function of time t (in minutes). Assume that at t = 0, the piston is at its farthest point from the crankshaft. B B C C B A A stroke lengthCalculate the dimensions of the I-section of a connecting rod, stating any assumptions. using the data below: Maximum cylinder pressure = 3.15N/mm² Cylinder bore = 100mm Factor of Safety=6 Crank length 95mm Connecting rod length=380mm Take the constant a=7500.Q1: Design and draw a cast iron flange coupling for a mild steel shaft transmitting 80 kW at 220 rpm with the following specifications: Allowable shear stress in the shaft = 400 MPa Permissible angle of twist < 1° in a length of 20 diameters Allowable shear stress in the coupling bolts 30 MPa Rigidity modulus of shaft materials = 85 GPa Allowable shear stress for hub material = 15 MPa You may adopt, width of key = 25 mm, thickness of key = 14 mm You may also consider that the shaft and key are made of the same material. Four number of bolts are to be used in the coupling. Find out the diameter of the shaft required and main dimensions of the flanges and the key. Adopt suitable dimensions. Draw a neat sketch for the flange coupling with the designed dimensions.