Design of Meander Spring for Automotive Passive Limited Slip Differentials
N. A. Abdel-Halim *
Department of Automotive and Tractor Engineering, Faculty of Engineering (Mataria), Helwan University, Cairo, Egypt.
*Author to whom correspondence should be addressed.
Abstract
The meander compression spring or meander spring or corrugated spring is a promising design variant for many systems in the vehicles. From these systems, the Passive Limited Slip Differentials (PLSD) which respond purely mechanically, and the compression axle springs in the suspension system. The main purpose of the article is resolving many suitable equations for meander spring dimensions and stresses to use the spring into a definite automotive PLSD. Whereas none of the researchers dealt with the basic calculations of the dimensions of the spring and the stresses on this spring while using it within the PLSD of a particular car. This research started with explanation for the most simplified theoretical solutions such as the axial stiffness and the bending stiffness of the equivalent beam, axial compressive load, torque sensing for internal pressure category, and initial force to the clutch packs. The theoretical solutions are used to calculate the spring dimensions, the forces, and the moments which are effects on the spring performance. Also, they are used to fined how can the power source and the drive line availability effect on the designed meander spring dimensions and its availability for using inside the Limited Slip Differential (LSD). Finally, a meander spring designed under a true vehicle specification as a case study to use inside the PLSD of this vehicle.
Keywords: Meander spring, materials, design, limited slip differential or LSD, automotive