Category Title
System torsional analysis is performed by packagers and OEMs to ensure the reliable operation of assembled systems such as engine compressor packages. This is especially critical when either the prime mover or the load is reciprocating machines with associated high levels of oscillating torque. Unexpectedly, high shaft stresses are likely to occur if the frequency of the oscillating torque coincides with a torsional critical speed. Failure to rigorously and accurately model this behavior can result in fatigue of torque-transmitting components with disastrous results. Flexible coupling characteristics are among the parameters used in system torsional analysis. Coupling manufacturers routinely supply weight, inertia, center of gravity, and torsional stiffness data for use by the system analyst. During the development of a new disc coupling product line, discrepancies were noted between historically and widely used coupling torsional stiffness data vs. the stiffness measured in laboratory tests. Subsequently, in-depth investigation was undertaken using FEA (Finite Element Analysis) and multiple lab tests on the proposed new coupling line as well as on competitor couplings in an attempt to more accurately model coupling torsional stiffness characteristics. Based on this research, new equations were derived which provide significant improvement in the accuracy of flexible disc coupling torsional stiffness calculations.
Your Price $195.00
List Price $195.00