Designing Vertical Spindles for Torsion and Bending

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SUMMARY

The discussion centers on the design considerations for vertical spindles used in mechanical applications, specifically regarding whether to account for both torsion and bending forces. It is established that if the bending forces are comparable to the torsional forces, both must be considered in the design process. The orientation of the spindle does not negate the need for comprehensive analysis if the system is securely mounted. Participants recommend seeking resources that provide standard equations for these calculations.

PREREQUISITES
  • Understanding of mechanical engineering principles, particularly in shaft design.
  • Familiarity with torsion and bending stress analysis.
  • Knowledge of gear meshing dynamics and their effects on spindle design.
  • Proficiency in using engineering software for structural analysis, such as ANSYS or SolidWorks.
NEXT STEPS
  • Research "Torsion and Bending Stress Equations" for comprehensive understanding.
  • Study "Finite Element Analysis (FEA) for Shaft Design" to simulate stress conditions.
  • Explore "Mechanical Design of Machine Elements" for practical examples and case studies.
  • Learn about "Gear Design Principles" to understand the implications of gear interactions on spindle performance.
USEFUL FOR

This discussion is beneficial for mechanical engineering students, design engineers, and professionals involved in the design and analysis of rotating machinery and components.

aniruddha
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Hello!
Iam a student doing my project at an industry
I just encountered designing shafts
we use vertical spindles with a gear which meshes with an internal gear near the top end of the spindle, i just wanted to know whether i need to design the spindle for both torsion and bending or should i just consider torsion since the spindle is vertical??
Plz help me out iam stuck
 
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There's really not enough information here. If the bending (non-torsional twisting) force is of the same order of magnitude as the torsional force then you need to consider both.

This is very application dependent and it really doesn't matter what orientation it is if the system is stably captured or grounded.
 
Is there any link where i can fully understand these things with some standard equations??

Is there any practical example of a shaft subjected to pure torsion
 
Last edited:

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