Obtain a preliminary design of the shaft by performing the following tasks. Note that forces T=2880 N and T;=432 N. The maximum bending moment is at x =230 mm (point B), and it equals M = 698.3 N•m completely reversed, where the torque is constant at 612 N.m at the same point. The shaft material is AISI 1020 CD steel. Take the stress concentration conditions at B to be Shoulder fillet-sharp, with notch radius r=0.6 mm (Table 7-1).

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
icon
Related questions
icon
Concept explainers
Question
Problem 1:
Obtain a preliminary design of the shaft by performing the following tasks. Note that forces T=2880
N and T;=432 N. The maximum bending moment is atx= 230 mm (point B), and it equals M= 698.3
N•m completely reversed, where the torque is constant at 612 N.m at the same point.
The shaft material is AISI 1020 CD steel. Take the stress concentration conditions at B to be Shoulder
fillet-sharp, with notch radius r=0.6 mm (Table 7-1).
y
230 mm
T,
280 mm
30-mm dia.
T
C
300 mm
250-mm dia.
400-mm dia.
270 N
1800 N
a) Sketch a general shaft layout in 2D (x – y axes), including all components and torques, then
calculate all reactions.
b) Based on the current shaft dimensions and using only forces at B and C, find the lowest critical
speed of the shaft.
c) Discard the indicated shaft diameter and use DE-Goodman criteria to determine the critical
diameter of the shaft based on infinite fatigue life with a design factor n of 1.5. (Take the same
value of endurance limit as that used in part c of this problem).
Transcribed Image Text:Problem 1: Obtain a preliminary design of the shaft by performing the following tasks. Note that forces T=2880 N and T;=432 N. The maximum bending moment is atx= 230 mm (point B), and it equals M= 698.3 N•m completely reversed, where the torque is constant at 612 N.m at the same point. The shaft material is AISI 1020 CD steel. Take the stress concentration conditions at B to be Shoulder fillet-sharp, with notch radius r=0.6 mm (Table 7-1). y 230 mm T, 280 mm 30-mm dia. T C 300 mm 250-mm dia. 400-mm dia. 270 N 1800 N a) Sketch a general shaft layout in 2D (x – y axes), including all components and torques, then calculate all reactions. b) Based on the current shaft dimensions and using only forces at B and C, find the lowest critical speed of the shaft. c) Discard the indicated shaft diameter and use DE-Goodman criteria to determine the critical diameter of the shaft based on infinite fatigue life with a design factor n of 1.5. (Take the same value of endurance limit as that used in part c of this problem).
Expert Solution
steps

Step by step

Solved in 4 steps with 2 images

Blurred answer
Knowledge Booster
Pressure and stress
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Structural Analysis
Structural Analysis
Civil Engineering
ISBN:
9781337630931
Author:
KASSIMALI, Aslam.
Publisher:
Cengage,
Structural Analysis (10th Edition)
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Sustainable Energy
Sustainable Energy
Civil Engineering
ISBN:
9781337551663
Author:
DUNLAP, Richard A.
Publisher:
Cengage,
Traffic and Highway Engineering
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning