Dynamic Stability of a Rotating Shaft Driven Through a Universal Joint

The modelling of two DOF joints controlled by elastic inner ties

“…It can also be used for manipulators, where, instead of the drive shaft, the cross connector joins two arms. In both cases, this structure has 3 degrees of freedom [6]. There are known applications of universal joints in the construction of robots.…”

Principal Parametric Resonance Zones of a Rotating Rigid Shaft Driven Through a Universal Joint

“…The linearized equations of motion for the driven shaft were shown in reference [1] to be, for the case of zero initial angles between the driving and driven shafts, ;…”

“…It was found that for shafts of proportions of those for a truck, the only parametric instabilities arising in practical ranges of operation were due to the rigid body modes (the shaft bouncing on the support springs), so that shaft #exibility can be ignored. In reference [1] the results were obtained using the monodromy matrix technique which is very computational intensive and number speci"c, so that parametric studies are very time consuming. In this note, some analytic expressions are developed for computing the principal parametric resonance zones using the methodology of Hill's in"nite determinant.…”

“…In reference [1], two models were developed for the motion of a driven shaft coupled via a U-joint to a uniformly rotating driving shaft. In one model, the shaft was treated as rigid whereas in the other it was treated as #exible.…”

Vibration Noise Harshness of a Light Truck Driveshaft, Analysis and Improvement with Six Sigma Approach

“…These studies have addressed the torsional response of the same model, incorporating a single non-constant velocity joint system with fixed bearings. Mazzei et al [13,14] have identified parametric instabilities, including flutter due to the torsional and lateral response, produced by excitation of the non-constant velocity with applied driveshaft loading. Dimentberg [15,16] has progressed the research into the soft support boundary conditions on the output shaft, including lateral, torsional and coupled response of the output shaft with support base excitation.…”