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A vertical spring loaded valve is required for a compressed at a pressure of 1 N/mm2...
A spring loaded valve is to be used for operation of compressed air. The valve seat...
A spring loaded valve is to be used for operation of compressed air. The valve seat is 10 mm in radius. When the pressure on the valve reaches 1.05 N/mm2, its opening starts and when the pressure reaches 1.4 N/mm2, the valve must be completely open. During the operative pressure range, the valve lift is 6 mm. The steel used for the spring material has yield strength of 2000 MPa, and a shear modulus of 85 kN/mm2. Design the spring...
Q1. The following data is given for a lever-loaded safety valve mounted on the boiler: Valve...
Q1. The following data is given for a lever-loaded safety valve mounted on the boiler: Valve diameter 75 mm Blow-off pressure 1.25 MPa Yield strength of material at tensile 250 N/mm2 Factor of safety 5 Allowable bearing pressure 20 N/mm2 Length to diameter ratio for pins 125 1 Width to thickness ratio for lever 3 1 The distance between the fulcrum and the pin connecting the spindle of the valve to the lever is 75 mm. The distance between the...
weighing 48 kN and moving with a speed of 86 m/min has to be 1. A...
weighing 48 kN and moving with a speed of 86 m/min has to be 1. A loaded narrow gauge car brought to the rest by a buffer consisting of three helical springs. In bringing the car to rest the spring undergoes a compression of 28 cm. The allowable shear stress is 0.32 GPa and the spring index is 9. Design a suitable spring. Take G as 80 x 10 kN/m2 Hint:() use kinetic energy equation (2) Energy absorbed by each...
6. It is desired to design a valve spring ofLC. engine for the following details (a)...
6. It is desired to design a valve spring ofLC. engine for the following details (a) Spring load when valve is closed 80N (b) Spring load when valve is open =100 N (c) Space constraints for the fitment of spring are Inside guide bush diameter 24 mm Outside recess diameter 36 mm (d) Valve lift 5 mm (e) Spring steel has the following properties Maximum permissible shear stress 350 MPa Modulus of rigidity =84 kN/mm Find 1. Wire diameter, 2....
Problem. (20 points) A helical compression spring will be used in a pressure relief valve. When...
Problem. (20 points) A helical compression spring will be used in a pressure relief valve. When the valve is closed the spring leneth is 50 mm, and the spring force is to be 7 N. The spring uses a wire diameter of d 1.5 mm and a mean spring diameter of D = 10 mm, and has a solid length ofl.- 30 mm. Use hard-drawn ASTM A227 wire, squared and ground ends, and ignore buckling since the spring is in...
Question 1) Determine the required number of active coils and permissable deflection in a helical spring...
Question 1) Determine the required number of active coils and permissable deflection in a helical spring made of 1.6 mm diameter steel wire, assuming a spring index of 6 and allowable stress of 345 MPa in shear. The spring rate is to be 1.75 N/mm.
1. A helical compression spring has the following characteristics Wire diameter Outside diameter ...
Please answer if you are sure, thank you
1. A helical compression spring has the following characteristics Wire diameter Outside diameter Fmi 15.5 mm 15 N 100 N 115 N 25 mm maz End Treatment squared and ground Modulus of Rigidity80e9 N/m2 Note: Δ is the difference in deflection under the loads Fmin and Frnaz. Be sure to sketch the spring in its various states to assist in answering the following questions. (a) Find the spring constant, k. Be sure...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the ver...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...
Question 1 An end capped cylindrical pressure vessel with internal pressure p = fully supported at...
Question 1 An end capped cylindrical pressure vessel with internal pressure p = fully supported at one end, is also subjected to a force F= 10 kN in the y direction at the other end as shown. The internal diameter of the pressure vessel is d= 160 mm and its thickness is t= 10 mm 3 MPa, assumed to be Determine the magnitudes of the stress components in x, y and z coordinates at points H and K and sketch...
Q1. The following data is given for a lever-loaded safety valve mounted on the boiler: Valve diameter 75 mm Blow-off pressure 1.25 MPa Yield strength of material at tensile 250 N/mm2 Factor of safety 5 Allowable bearing pressure 20 N/mm2 Length to diameter ratio for pins 125 1 Width to thickness ratio for lever 3 1 The distance between the fulcrum and the pin connecting the spindle of the valve to the lever is 75 mm. The distance between the...
weighing 48 kN and moving with a speed of 86 m/min has to be 1. A loaded narrow gauge car brought to the rest by a buffer consisting of three helical springs. In bringing the car to rest the spring undergoes a compression of 28 cm. The allowable shear stress is 0.32 GPa and the spring index is 9. Design a suitable spring. Take G as 80 x 10 kN/m2 Hint:() use kinetic energy equation (2) Energy absorbed by each...
6. It is desired to design a valve spring ofLC. engine for the following details (a) Spring load when valve is closed 80N (b) Spring load when valve is open =100 N (c) Space constraints for the fitment of spring are Inside guide bush diameter 24 mm Outside recess diameter 36 mm (d) Valve lift 5 mm (e) Spring steel has the following properties Maximum permissible shear stress 350 MPa Modulus of rigidity =84 kN/mm Find 1. Wire diameter, 2....
Problem. (20 points) A helical compression spring will be used in a pressure relief valve. When the valve is closed the spring leneth is 50 mm, and the spring force is to be 7 N. The spring uses a wire diameter of d 1.5 mm and a mean spring diameter of D = 10 mm, and has a solid length ofl.- 30 mm. Use hard-drawn ASTM A227 wire, squared and ground ends, and ignore buckling since the spring is in...
Question 1) Determine the required number of active coils and permissable deflection in a helical spring made of 1.6 mm diameter steel wire, assuming a spring index of 6 and allowable stress of 345 MPa in shear. The spring rate is to be 1.75 N/mm.
Please answer if you are sure, thank you
1. A helical compression spring has the following characteristics Wire diameter Outside diameter Fmi 15.5 mm 15 N 100 N 115 N 25 mm maz End Treatment squared and ground Modulus of Rigidity80e9 N/m2 Note: Δ is the difference in deflection under the loads Fmin and Frnaz. Be sure to sketch the spring in its various states to assist in answering the following questions. (a) Find the spring constant, k. Be sure...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...
Question 1 An end capped cylindrical pressure vessel with internal pressure p = fully supported at one end, is also subjected to a force F= 10 kN in the y direction at the other end as shown. The internal diameter of the pressure vessel is d= 160 mm and its thickness is t= 10 mm 3 MPa, assumed to be Determine the magnitudes of the stress components in x, y and z coordinates at points H and K and sketch...
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