Chassis and suspension engineering

Vehicle handling, ride comfort, vibration and road noise are important vehicle attributes that determine to a large

extent a car’s brand image and customer satisfaction. Today, each of these attributes is quite well mastered individually. However, engineering a balanced combination that delivers the desired vehicle performance remains a challenging task. LMS Engineering Services offers an integrated approach to chassis and suspension engineering, one where vehicle dynamics, durability and NVH are handled in parallel from the concept up until the vehicle refinement phase.

Benchmarking and target setting

Handling target setting
- Slopes, delays, gains
- Mounts, geometry
Ride characteristic target setting
- Longitudinal/vertical stiffness and damping
- Alignment with powertrain and body modes
Durability load identification
NVH target setting
- Suspension force transmissibility
- Point motilities and modes of subframe

Concept development

Assessing concept designs for handling
Assessing concept designs for ride characteristics: shimmy analysis, harshness analysis, engine suspension analysis
Strength analysis of durability components
Non-linear analysis of suspension components and complete suspension (stress and strength)
Road noise concept modeling and balancing with handling and comfort

Detailed design and engineering

Elasto-kinematic analysis and full-vehicle handling analysis
Full-vehicle analysis for harshness, shimmy, ride comfort
Fatigue life analysis of suspension arms, knuckles, subframes
Suspension optimization for road noise based on hybrid models

Prototype refinement and validation

Prototype refinement of vehicle ride and handling, durability and NVH using a combination of test-based and simulation-based techniques to tune and refine final designs