Study of Low Stiffness Resilient Shaft (LSRS)

This dissertation mainly covers various chapters upon the design and modeling of Low Stiffness Resilient Shaft (LSRS) using wire rope as the main component. The use of flexible LSRS to replace the conventional steering shaft is discussed. The proposed steering system configuration is similar to a conventional electrical power-assisted steering with the replacement of the rigid steering shaft with a LSRS. The flexible LSRS should be able to carry the main task of the conventional steering shaft where it can allow active control of the vehicle. The steering system developed has a fail-safe functions that can respond to failures in steer-by-wire (SBW) steering system. The advantages of LSRS in comparison SBW and other conventional systems are discussed. This dissertation also discuss on the best wire rope configuration that should be used to build the LSRS. A single wire rope is compared with a four strand wire rope in ANSYS™ simulation. From the simulation, Total Deformation, Equivalent Stress, Maximum Principal Stress, Equivalent Elastic Strain, and Total Angle Deflection for both wire ropes are compared. The results show that wire rope that are configured using four strand where it is arranged in two of the wire ropes are in a right hand lay and