Predictive Design Support in the Achievement of Refined Power for the Jaguar XK8 972041
Jaguar has developed a new V8 powertrain with the support of predictive design analysis techniques. This paper describes some of the work performed during this programme to ensure low frequency powertrain refinement.
The concept of the engine was to produce a lightweight 4.0 litre engine with class leading specific torque and power, while satisfying customer aspirations for vehicle refinement.
To meet the refinement objectives, an understanding of the structural dynamic performance of the powertrain was required. This understanding would be essential in developing the design from initial concept through to production intent. To support this requirement a programme of predictive work was included within the design plan.
In the predictive work, low frequency modes of the powertrain and order tracked mount vibration were used to characterise the influence on in-vehicle refinement. Comparison with measured engine vibration confirmed the predicted effects of design changes.
The result of this focused approach is a lightweight 4 litre V8 powertrain with first bending mode frequencies exceeding 200Hz, fundamental torsion over 400Hz and low vibration levels at the mounts.
Citation: Richardson, S. and Riding, D., "Predictive Design Support in the Achievement of Refined Power for the Jaguar XK8," SAE Technical Paper 972041, 1997, https://doi.org/10.4271/972041. Download Citation
Author(s):
S. H. Richardson, D. H. Riding
Pages: 10
Event:
SAE Noise and Vibration Conference and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Proceedings of the 1997 Noise and Vibration Conference-P-309
Related Topics:
Powertrains
Production
Vibration
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »
