Mechanics solve problem:Just the correct answer
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nyyvfba09
Engineering
Description
Convert the load to 3000 Ibs
Convert the other with inch.
Questions.
I would u like to calculate all these parts in the scissor jack, the load will be 3000 Ibs, calculate all bellow
1-p - Pitch of screw thread (mm)
2-l - Lead of screw thread (mm)
3-d - Nominal diameter of screw (mm)
4-dc - Core diameter of screw (mm)
5-dm - Mean diameter of screw
6-α - Helix angle of screw (degree)
7-W - Load (kg)
8-N - Normal reaction
9-μ - Coefficient of friction
10-P - Effort (N)
11-θ - Friction angle (degree)
12-T - Torque (N.m)
13-η - Efficiency (%)
14-Fc - Direct compressive stress (N/mm2)
15-Ft - Torsional shear stress (N/mm2)
16-Fs - Principal shear stress (N/mm2)
17-Ts - Transverse shear stress (N/mm2)
18-t - Thread thickness at the core diameter (mm)
19-n - Number of threads in engagement with the nut.
20-Tn - Transverse shear stress at the root of the nut (N/mm²)
21-Pb - Unit bearing pressure (N/mm²)
22-k - Least radius of gyration of the cross-section about its axis (mm)
23-I - Least moment of inertia of the cross-section (mm4)
24-A - Area of the cross-section (mm2)
25-Pcr - critical load (N).
26-E - Modulus of elasticity (N/mm²)
27-Syt - Yield strength of the material (N/mm2)
28-M - Maximum bending moment at the critical section
29-WT - Tangential load acting at the tooth (N)
30-h - Length of the tooth (mm)
31-y - Half of the thickness of the tooth (t) at critical section (mm)
32-b - Width of gear face (mm)
33-Fw - Permissible working stress
34-y - Lewis form factor
35-Fo - allowable static stress (N/mm2)
36-Cv - velocity factor.
37-v - Pitch line velocity (m/s.)
38-WD - Total dynamic load (N)
39-WT - Steady transmitted load (N),
40-WI - Incremental load due to dynamic action (N)
41-C - A deformation or dynamic factor (N/mm)
42-K - A factor depending upon the form of the teeth of a gear
43-EP - Young‟s modulus for the material of the pinion in N/mm2EG - Young‟s modulus for the material of the gear in N/mm2
44-e - Tooth error action in mm
45-WS - Static tooth load (N)
46-Wd - Dynamic tooth load
47-Ww - Maximum or limiting load for wear (N)
48-Dp - Pitch circle diameter of the pinion in mm
49-Q - Ratio factor
50-K - Load stress factor (N/mm2)
51- Surface endurance limit (N/mm²)
52- Pressure angle
53-N1 - Motor speed (RPM)
54-N2 - Output speed (RPM)
55-D2 - Diameter of the roller gear wheel (mm)
56-D1 - Diameter of the motor gear wheel (mm)
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