# Mechanics solve problem:Just the correct answer

Jan 24th, 2015
Anonymous
Category:
Science
Price: \$80 USD

Question 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)

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)

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)

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)

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)

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)

unnamed.jpg

School: UIUC

Studypool has helped 1,244,100 students

Review from student
Anonymous
" Totally impressed with results!! :-) "

1830 tutors are online

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors