design of machine elements

May 3rd, 2015
Anonymous
Category:
Engineering
Price: $70 USD

Question description

1)A hollow shaft of 0.5 m outside diameter and 0.3 m inside diameter is used to

drive a propeller of a marine vessel. The shaft is mounted on bearings 6 metre apart and it transmits

5600 kW at 150 r.p.m. The maximum axial propeller thrust is 500 kN and the shaft weighs 70 kN.

Determine :

1. The maximum shear stress developed in the shaft, and

2. The angular twist between the bearings.

A hollow steel shaft is to transmit 20 kW at 300 r.p.m. The loading is such that

2)the maximum bending moment is 1000 N-m, the maximum torsional moment is 500 N-m and axial

compressive load is 15 kN. The shaft is supported on rigid bearings 1.5 m apart. The maximum

permissible shear stress on the shaft is 40 MPa. The inside diameter is 0.8 times the outside diameter.

The load is cyclic in nature and applied with shocks. The values for the shock factors are Kt = 1.5 and

Km = 1.6.


Tutor Answer

(Top Tutor) Studypool Tutor
School: Boston College
PREMIUM TUTOR

Studypool has helped 1,244,100 students

Review from student
Studypool Student
" Outstanding Job!!!! "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1821 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