Measuring durability – complete solutions for vehicle developers: fast and efficient

You want to:

• Measure operating loads 
• Design vehicles that are durable 
• Generate load profiles for different markets such as Germany, China or South America, and also for different environments such as urban and overland/intercity traffic 
• Define load spectra for various vehicle usage conditions

Method:

• Equip the vehicles with measurement technology (such as wheel force transducers) to measure road loads 
• Record the loads for all conditions of use
• Define representative load data

Measurement technology by Kistler – recommended equipment:

• RoaDyn wheel force transducers 
• Accelerometers
• Strain gauges 
• Displacement sensors, temperature sensors, force sensors 
• DAQ 

You want to:

• Validate the lifetime of the bodywork, chassis and vibrating built-on components 
• Load the vehicle according to the load spectrum that matches the customer's usage profile 
• Quickly and efficiently make statements as to whether the design of the entire vehicle or its axes can be released

Method:

• Equip the vehicle with measurement technology to operate the test stand and monitor the units under test
• Hardware-in-the-Loop (HiL) and residual bus simulation for correct operation of the vehicle's systems
• Iteration of wheel force transducer signals on the test stand
• Replay the iterated signals until the test objective is reached

Measurement technology by Kistler – recommended equipment:

• RoaDyn wheel force transducers 
• Accelerometers 
• Strain gauges 
• Displacement sensors, force sensors

Goal:

• Validate a tire model for virtual design
• Design the traction to calculate the energy transfer from drive to road
• Measure the rolling resistance to determine the overall efficiency of the drive

Method:

• Record the loads introduced from the road into the vehicle during specific maneuvers such as wet braking and braking on different surfaces
• Optimize the tire model with the help of the measurement data
• First virtual design of the chassis using the tire model and data acquired during drives

Equipment:

• Wheel force transducers 
• Force plates 
• Measuring hubs

You want to:

• Match your vehicle's chassis to a specific driving style (e.g. sporting)
• Make the driver of your vehicle feel safe while driving 
• Optimize the design of the braking systems

Method:

• Measure vehicle dynamics parameters such as side-slip angle, drift angle and braking distance during standard ISO tests

Equipment:

• RoaDyn wheel force transducers 
• Correvit S-Motion 
• Accelerometers

You want to:

• Optimize the NVH behavior of vehicles with the goal of creating a unique, brand-building soundscape
• Eliminate disruptive noises and vibrations

Method:

• Measure excitation and response with accelerometers, force sensors and microphones 

Equipment:

• RoaDyn wheel force transducers 
• Accelerometers 
• Microphones, impulse force hammers 
• Strain gauges 
• Displacement sensors, force sensors 

Are you interested in NVH and TPA? Learn more about these topics on our NVH page

When durable vehicle designs are being developed, a key part is played by tools that ensure efficient analysis and evaluation of the applied operating loads and the availability of the data. Our jBEAM Durability analysis software integrates seamlessly into existing development processes: it makes data evaluation more efficient and reliable, and simplifies the release process by providing a dependable basis for decisions. 

Benefit from the advantages of jBEAM Durability in these situations: 

You want to release components and systems to meet durability requirements, and also:

• Minimize the likelihood of faults with the help of standardized, personalized and subject-specific analyses and reports
• Generate valid end-to-end documentation that is also efficient, as the basis for releases
• Ensure that available knowledge is used as input for each of your decisions

You are responsible for testing the durability properties of components and systems, and for this purpose you want to:

• Capture load data and efficiently ensure that all the required sensors supply valid data in a comprehensive measurement campaign
• Commission tests and trials, and intuitively prepare the test data for them so as to ensure repeatability 
• Issue status reports on tests and trials, achieving statements of consistently high quality without much expenditure of time

You analyze and evaluate measurement data in terms of durability and as you do so, you want to:

• Provide recommendations for action and draw conclusions that require valid methods and algorithms
• Ensure that complex cross-departmental analyses are equivalent and are based on the same standards
• Create decision templates that allow spontaneous, targeted and universally informed discussion of the data basis

Extract from the list of functions:

• Damage accumulation and counting methods such as rainflow, range pair counting and level crossing
• Globally adjustable parameters across groups and/or departments so that calculations are always performed identically
• Signal validation tools, such as correction of drift, offset, spikes