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Title	Introduction	Action
Algorithm and program for factor of safety of bolts.	The section of the sealed joint shown in the figure is loaded by a repeated force P =27 kN. The members have E = 110 GPa. All bolts have been carefully preloaded to Fi = 110 kN each.	Read more
Algorithm and program for design of springs.	A music wire helical compression spring is needed to support a 89 N load after being compressed 50 mm. Because of assembly consideration the solid height cannot exceed 25 mm and free length cannot be more than 100 mm. Design the spring.	Read more
Algorithm and program for Screw Jack.	Calculate the screw drive of jack for a load capacity of 100 kN. Lifting height is 0.5 m. (Material for screw may be taken as C25 steel and FOS = 2.25)	Read more
Program for design of shaft.	A shaft with the relative proportions in figure given below is to carry a load that consists of a reversed bending moment of 340 N-m and a steady torque of 450 N-m. What dimensions do you recommend if the factor of safety is to be 2.5 and the shaft is to be machined from C20 steel?	Read more
Factor of safety	To write a code for calculation of factor of safety for a given state of stress and material.	Read more
program for design of spur gear.	Design a 4:1 spur gear reduction for a 75 kW, three phase squirrel cage induction motor running at 18.667 rev/s. The load is smooth, providing a reliability of 0.95 at 109 revolutions of the pinion. Gearing space is meagre. Use Nitralloy 135M, grade 1 to keep the gear size small. The gears are heat treated first then nitrided.	Read more
single gear set with involute tooth profile in meshing condition.	A gearset consists of a 16-tooth pinion driving a 40-tooth gear. The module is 12 mm, and the addendum and dedendum are 1.0 m and 1.25 m, respectively. The gears are cut using a pressure angle of 20°. Generate the gear set with involute tooth profile in meshing condition.	Read more
Design of Helical Gear	Design a 4:1 helical gear reduction for a 75 kW, three phase squirrel cage induction motor running at 18.667 rev/s. The load is smooth, providing a reliability of 0.95 at 109 revolutions of the pinion. Gearing space is meagre. Use Nitralloy 135M, grade 1 to keep the gear size small. The gears are heat treated first then nitrided.	Read more
Design of bevel Gear	Desing a straight-bevel gear mesh for shaft centerlines which intersect perpendicularly, to deliver 5Kw at 15 rev/s with a gear of 3:1, temperature of 150 degree C ,normal pressure angle of 20degree , using a design factor of 2.The load is uniform-uniform. Although the minimum number of teeth on the pinion is 13,which will mesh with 31 or more teeth without interference, use a pinion of 20 teeth.The materrial is to be AGMA grade 1 and the teeth are to be crowned. The reliabilitty goal is 0.995 with a pinion life of 10^9 revolutions.	Read more

Title

Introduction

Action

Algorithm and program for factor of safety of bolts.

The section of the sealed joint shown in the figure is loaded by a repeated force P =27 kN. The members have E = 110 GPa. All bolts have been carefully preloaded to Fi = 110 kN each.

Algorithm and program for design of springs.

A music wire helical compression spring is needed to support a 89 N load after being compressed 50 mm. Because of assembly consideration the solid height cannot exceed 25 mm and free length cannot be more than 100 mm. Design the spring.

Algorithm and program for Screw Jack.

Calculate the screw drive of jack for a load capacity of 100 kN. Lifting height is 0.5 m. (Material for screw may be taken as C25 steel and FOS = 2.25)

Program for design of shaft.

A shaft with the relative proportions in figure given below is to carry a load that consists of a reversed bending moment of 340 N-m and a steady torque of 450 N-m. What dimensions do you recommend if the factor of safety is to be 2.5 and the shaft is to be machined from C20 steel?

Factor of safety

To write a code for calculation of factor of safety for a given state of stress and material.

program for design of spur gear.

Design a 4:1 spur gear reduction for a 75 kW, three phase squirrel cage induction motor running at 18.667 rev/s. The load is smooth, providing a reliability of 0.95 at 109 revolutions of the pinion. Gearing space is meagre. Use Nitralloy 135M, grade 1 to keep the gear size small. The gears are heat treated first then nitrided.

single gear set with involute tooth profile in meshing condition.

A gearset consists of a 16-tooth pinion driving a 40-tooth gear. The module is 12 mm, and the addendum and dedendum are 1.0 m and 1.25 m, respectively. The gears are cut using a pressure angle of 20°. Generate the gear set with involute tooth profile in meshing condition.

Design of Helical Gear

Design a 4:1 helical gear reduction for a 75 kW, three phase squirrel cage induction motor running at 18.667 rev/s. The load is smooth, providing a reliability of 0.95 at 109 revolutions of the pinion. Gearing space is meagre. Use Nitralloy 135M, grade 1 to keep the gear size small. The gears are heat treated first then nitrided.

Design of bevel Gear

Desing a straight-bevel gear mesh for shaft centerlines which intersect perpendicularly, to deliver 5Kw at 15 rev/s with a gear of 3:1, temperature of 150 degree C ,normal pressure angle of 20degree , using a design factor of 2.The load is uniform-uniform. Although the minimum number of teeth on the pinion is 13,which will mesh with 31 or more teeth without interference, use a pinion of 20 teeth.The materrial is to be AGMA grade 1 and the teeth are to be crowned. The reliabilitty goal is 0.995 with a pinion life of 10^9 revolutions.

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