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The Third Generation Range Rover
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Short Description: The Third Generation Range Rover. Computer Aided Engineering (CAE) is central to the design and development of Land Rover products. The use of CAE ...
Content Inside: A u t o m o t i v e Bob Thurman Land Rover, Chassis Integration The Third Generation Range Rover Computer Aided Engineering (CAE) is central to the design and development of Land Rover products. The use of CAE techniques, in this instance, allows Land Rover to model and analyse refinement and comfort concurrently with the development of the mechanical design. This provides significant competitive advantage over the historical methodology of developing refinement and comfort on rigs and systems post mechanical design. With each new product there is an · Load generation for durability ana- increasing drive towards virtual lysis. validation. This drive dictated that it was necessary to develop new techni- The award winning third generation ques for refinement and comfort Range Rover is a luxury permanent modelling. To achieve cutting edge four wheel drive sport-utility vehicle. analysis for the new Range Rover the The vehicle offers occupants superior latest thinking in modelling techniques ride comfort and handling on the road needed to be included in the Range as well as off the road on very extre- Rover SIMPACK ride model. me terrains. SIMPACK has proven to Once the simulation models have be especially useful for analysis work been brought up to the latest stan- which includes large non-linearities dards the effect of any future modi- and sudden changes of states which fications may then be easily assessed are necessary for simulating off-road and the integration optimised. adventure vehicles. Because of internal time limitations INTEC was Land Rover has been using SIMPACK contracted to carry out work on for the last seven years and has just updating the SIMPACK vehicle model recently increased their number of to the latest standards. licences. SIMPACK is currently being used by Land Rover for analysis work Parameterised Substructures in the following areas: The entire model has been built up · Ride; where test rigs and varying using several fully parameterised road obstacles are simulated. substructures which not only aid in · Driveability, the response of the general model maintenance and vehicle to transient engine torques. updates but also enables easy ana- lysis of individual components and · Shimmy (nibble), rotational vibration assemblies, e.g. compliance curves of the steering wheel, caused by of front and rear suspensions. Future suspension inputs. simulation models may also be readily · Tramp (power hop) generated by simply switching the substitution variable files. Both the Page 7
