The Suspensions library is full of experiments that test the full vehicle dynamics. However, it can be very difficult to validate models using full vehicle experiments, such as the common Kinematic and Compliance (KnC) test. This kind of test, as the name suggests, details the suspension kinematics (force and...
Archive for category: Vehicle Dynamics
DTM in the 90s: Modelling Mercedes-Benz’s active ballast system
Evolving out of the ferociously popular German DTM series in the mid 1990s, the International Touring Car Championship (ITC) featured exotic and sophisticated racing cars; certainly, the most advanced production-based racing cars ever seen. Ballooning budgets from 3 large European manufacturers: Mercedes-Benz, Opel and Alfa Romeo, allied to a...
Major Updates to the UAVDynamics Library
Following the release of the UAVDynamics library there have been many updates and improvements over the last 2 years. Following a very successful Innovate UK – Future Flight project, the library has been significantly changed to accommodate the extra capabilities. Key New Features Fixed wing vehicles Tilt rotor/wing vehicles...
Creating an articulated lorry using a car simulator
The Claytex team was posed a question recently; “How easy would it be to create an articulated truck model with what we’ve got already?” My immediate thought was that it should be easy. The dynamics are no different from a conventional car and trailer and apart from a couple...
Vehicle Simulations with Degraded Suspension Bushes
The majority of vehicle simulations are for vehicles in optimal or close to optimal conditions. However, evaluating the vehicle which is in a worn condition can severely inhibit its performance and greatly increase peak loads. This can accelerate the degradation of the bushes further, and also cause dangerous handling...
A Look Inside VeSyMA’s Quarter Car Models
Our VeSyMA suite of libraries includes amongst half and full car models, also quarter car models for simulating vehicle suspensions. Depending on the purpose and detail required, these may be from the VeSyMA, VeSyMA-Suspensions or VeSyMA- Motorsports libraries. In this blog post I’m going to take a look around...
Simulation: Not just a buzz word – part 2
Two weeks ago, the Claytex tech blog considered the role simulation must play in modern automotive development in a conceptual way. But what does that look like in context? How can VeSyMA be integrated into OEM workflows? Existing structures need updating for modern vehicles First, we must understand the...
Simulation: not just a buzz word
As vehicles are getting more complex as integrated mechatronic systems, approaches which are cross-disciplinary using simulation are now vital. Development processes need to be able to capture and understand all the permutations of each design change or choice, which cannot be easily discretised into singular studies, whether physical or...
Scaling of visualisers/visualizers in Dymola
This blog post seeks to raise awareness of how objects such as visualisers/visualizers reference global settings that can be enabled and adjusted from within the Animation Setup and World objects within Dymola. Often we want to be able to visualise the application of forces and torques to better understand...
Instant Centre for any Suspension Linkage
What is an Instant Centre A suspension linkage’s Instant Centre is an “imaginary” pivot around which the hub is “rotating” at a given moment. This is because when the hub moves up and down relative to the body, there is normally some rotation around the longitudinal and lateral axis....
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