I need her solving with counting the link and j1 and j2 on the graph please urgent
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- What I am struggling to understand from this problem. (1) Why does the external load not show up in the FBD of links 4 and 2? (2) why do points B and D not have a force in y-direction? Thank you.Certain farm equipment which requires 2200 Newton-meter torque at 500 rpm has a dieselengine to operate at 1500 rpm as its prime mover. A number 60 roller chain with a totallength of 60 pitches and a small sprocket with 23 teeth are to be used with an operatingtemperature to remain constant at 45-degree C. Determine the number of strands if thehorsepower rating per strand is 25.95 hp. Use a service factor of 1.4.a) 1 strandb) 3 strandsc) 7 strandsd) 9 strands the answer is one of the choices please provide a clean solutionA belt drive is used to transmit power from an electric motor to a compressor for a refrigerated truck. The compressor must still operate when the truck is parked and the engine is not running. The 50-hp electric motor is rated at 150+X rpm (where value of X = 50), and the motor sheave diameter is 5+d1 in. (where value of d1 = 5). The compressor sheave has 8+d2 in (where value of d2 = 5) diameter. The center distance of the drive is 15 in. Determine the appropriate industrial V belt size, the length of belt, operating speed of compressor and belt speed.
- Find the following degree of freedom using the formula below M = 3 (n-1) - j1 - j2 M = Mobility or Total no. of DOFn = Total no. of links in a mechanismJ1 = No. of joints having 1 DOFJ2 = No. of joints having 2 DOFCalculate the minor axis (z-z) axial flexural buckling capacity of a 152×152×30UC S275 assuming an effective length, LLTB=4.00 m. round up/down to the nearst whole numberA planar closed kinematic chain is formed with rigid links PQ=1m ,QR=4m, RS=2.5m and SP=3.7m with all revolute joints. The link to be fixed to obtain rocker mechanism is?
- 3. Design a compression coupling for a shaft to transmit 1300 N-m. The allowable shear stress for the shaft and key is 40 MPa and the number of bolts connecting the two halves are 4. The permissible tensile stress for the bolts material is 70 MPa. The coefficient of friction between the muff and the shaft surface may be taken as 0.3.A bushed pin type flexible coupling is used to transmit 10 kW power at 720 rpm. The design torque is 150% of rated torque. The keys have square cross-section. The permissible stresses are: For shaft and key material, τ = 66.67 N/mm2 , σc = 200 N/mm2 ; For pin material, τ = 35 N/mm2 , σt = 133 N/mm2 ; For flange material τ = 16.67 N/mm2 . The permissible bearing pressure for rubber bushes is 1 N/mm2. The number of bushes is 4. Design the bushed pin flexible coupling. Explain Axle, Spindle, Counter shaft and line-shaft with their examples .A bushed pin type flexible coupling is used to transmit 10 kW power at 720 rpm. The design torque is 150% of rated torque. The keys have square cross-section. The permissible stresses are: For shaft and key material, τ = 66.67 N/mm2, σc = 200 N/mm2; For pin material, τ = 35 N/mm2, σt = 133 N/mm2; For flange material τ = 16.67 N/mm2. The permissible bearing pressure for rubber bushes is 1 N/mm2. The number of bushes is 4. Design the bushed pin flexible coupling.
- 3) A flange coupling is to connect two 60mm shafts. The hubs of the coupling are 120mm, 100mm thick, & the flange webs are 20 mm thick. Six M16 bolts fasten the flange from a 165 bolt circle. The keyway is 15mm shorter than the hub’s thickness & the key is 15mm x 15mm. The coupling transmits 45kW @ 450rpm. The yield point in shear for all materials is half of its yield point in tension or compression. Yield tensile strength is 0.75 of ultimate strength of the materials. The Sult is 448N/mm2 . Find: (a) the shear stress in key; (b) the bearing stress in key; (c) the shear stress in bolts; (d) bearing stress in flange.Q2 Select a suitable chain drive to transmit 50 kW from an electric motor to a line shaft. The motor shaft r.p.m. are 1200, line shaft r.p.m. are 250 and approximate center distance is 600 mm. Assume service is 10hr/day, 6 days per week.A flange coupling is to connect two 57 mm shafts. The hubs of the coupling are each 111 mm in diameter and 92mm thick and the flange web are 19 mm thick. Six 16 mm bolts in a 165 mm diameter circle connect the flange.The keyway is 6 mm shorter than the hub’s thickness and key is 14 mm x 14 mm. Coupling is to transmit 45 KW at160 rpm. For all parts, yield point value in shear is one – half the yield value which is 448 MPa. Calculate the forceon the shaft