Abstract
Power transmission shafting is a vital element of all rotating machinery. A complete shaft design involves many iterative phases and fundamental to this is the determination of preliminary dimensions of the shaft. This paper presents a comprehensive fatigue analysis approach of determining the initial dimensions of a power transmission shaft under fatigue loading based on American Society of Mechanical Engineers (ASME) Standard B106.1M:1985. A countershaft running at a constant speed is designed using this approach. Stress analysis at potential critical locations are conducted to determine the shaft sizes. The sizes from these locations are then used to estimate the sizes at low stress locations. Adjacent sizes are blended using the largest size. To help visualize, a CAD model of the preliminary designed countershaft is provided.
Highlights
One of the first fundamental facts of which human beings become aware is that nothing lasts forever
This paper focus is on designing a shaft to avoid fatigue failure, whiles checking to prevent overload failure
This paper presents a concise step-by-step fatigue analysis approach of determining the preliminary dimensions of a power transmission shaft under fatigue loading based on American Society of Mechanical Engineers (ASME) Standard B106.1M:1985
Summary
One of the first fundamental facts of which human beings become aware is that nothing lasts forever. It is usually possible to locate these potential critical areas, size these to meet the strength requirements and size the rest of the shaft to meet the requirements of the shaftsupported elements (Budynas and Nisbett, 2016) This is the approach presented in this paper. Shafts and axles often have stepped geometry to accommodate gears and pulleys and to restrict axial loading or displacement These sudden changes in cross section, as well as features like notches and holes, are local stress intensifiers and potential trouble spots for fatigue (ME, 2018). ASME code B106.1M:1985 for transmission shaft states apply fatigue strength concentration factors to any variable part of the load. The designer must rely on experience, company policies, engineering handbooks and many design codes that may pertain to the application to arrive at an appropriate design factor
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
