Optimal Design Accuracy through Overbuild Prediction

The Overbuild Prediction of CASIMIR/Automotive allows for precise forecasting of the necessary foam geometry expansion to achieve the target design after the upholstery process. It is essential to ensure that the upholstery is evenly supported, allowing it to lie taut without requiring excessive assembly forces.

Why Overbuild Prediction?

During manufacturing, the foam is deformed in certain areas, particularly on the bolsters at geometric curves, due to the upholstery. This deformation leads to undesirable deviations from the intended Design-A-Surface. To minimize these deviations, the foam geometry must be selectively increased. It is crucial to determine where and to what extent adjustments are needed to achieve the Design-A-Surface in the finished seat.

By adding extra foam, the seat cover can be stretched more tightly and consistently over the surface. This leads to fewer wrinkles, producing a smooth and visually appealing result. A tighter fit also enhances the seat's ergonomics by ensuring the cover conforms closely to the foam's contours. This alignment provides better support and comfort, optimizing the seating experience for the user and improving both form and function.

Foams naturally compress and lose volume over time due to continuous use and the effects of aging. Incorporating a small additional geometric overbuild helps counteract this issue. The extra foam layer serves as a protective buffer, helping to maintain the seat's original shape and firmness. This prolongs the seat's lifespan, ensuring it retains consistent comfort and structural integrity over a more extended period.

Combination of overbuild and wrinkling simulation for optimized seats

With the optional Overbuild Prediction feature of CASIMIR/Automotive, it is possible to optimize foam geometry regarding the three points mentioned above. Based on the strain distributions and boundary forces determined during the upholstery simulation, it is also possible to assess the risk of wrinkling, and the hand forces required for upholstery attachment.

 


Please contact us personally

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We will be happy to support you in solving your tasks relating to virtual seat development, seating comfort and virtual human models.

M. Sc. Martin Anderson
Sales

+49 931 49708-184
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EXPERT IN AUTOMOTIVE SOFTWARE, DIGITAL TRANSFORMATION AND AI-BASED ENGINEERING SOLUTIONS

 

Responsible for the global sales of the NVH simulation software CASIMIR as well as for business development within the Seat Comfort Solutions business unit

More than 10 years of international B2B experience in the automotive and wind energy industries, providing complex engineering and software solutions for OEMs and Tier 1 suppliers at the interface of technology and business models, particularly in Asia and North America

Holds a Master of Science (M.Sc.) degree in Industrial Engineering and Management with a focus on automation technology and product management, complemented by additional training as a value analyst

Dipl.-Ing. Jörg Hofmann
Product Management

+49 931 49708-280
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GLOBALLY RECOGNISED EXPERT IN SEATING COMFORT AND WHOLE-BODY VIBRATION

 

Product Manager for Virtual Seating Comfort with CASIMIR

25 years of professional experience in seating comfort and occupational health and safety

Speaker at renowned international conferences on seating comfort and whole-body vibration

Contributor to standardisation working groups, including the revision of ISO 2631-5

Core developer of the internationally used seating comfort tool CASIMIR

Degree in General Mechanical Engineering

M. Sc. Aravinda Veeraraghavan
Technical Support

+49 931 49708-182
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DEVELOPMENT ENGINEER (DIGITAL PRODUCTS)

 

Holds a Master of Science degree in Computational Mechanics of Materials and Structures from the University of Stuttgart

Responsible for the development of CASIMIR/Automotive (Wölfel’s software tool for seating comfort analysis and optimisation)

Provides close customer support and technical consulting

Optimises customer processes in the field of seating comfort

Conducts simulations in seat development with a focus on H-point, static and dynamic seating comfort, as well as the numerical modelling of human bodies

EXPERT IN AUTOMOTIVE SOFTWARE, DIGITAL TRANSFORMATION AND AI-BASED ENGINEERING SOLUTIONS

 

Responsible for the global sales of the NVH simulation software CASIMIR as well as for business development within the Seat Comfort Solutions business unit

More than 10 years of international B2B experience in the automotive and wind energy industries, providing complex engineering and software solutions for OEMs and Tier 1 suppliers at the interface of technology and business models, particularly in Asia and North America

Holds a Master of Science (M.Sc.) degree in Industrial Engineering and Management with a focus on automation technology and product management, complemented by additional training as a value analyst

GLOBALLY RECOGNISED EXPERT IN SEATING COMFORT AND WHOLE-BODY VIBRATION

 

Product Manager for Virtual Seating Comfort with CASIMIR

25 years of professional experience in seating comfort and occupational health and safety

Speaker at renowned international conferences on seating comfort and whole-body vibration

Contributor to standardisation working groups, including the revision of ISO 2631-5

Core developer of the internationally used seating comfort tool CASIMIR

Degree in General Mechanical Engineering

DEVELOPMENT ENGINEER (DIGITAL PRODUCTS)

 

Holds a Master of Science degree in Computational Mechanics of Materials and Structures from the University of Stuttgart

Responsible for the development of CASIMIR/Automotive (Wölfel’s software tool for seating comfort analysis and optimisation)

Provides close customer support and technical consulting

Optimises customer processes in the field of seating comfort

Conducts simulations in seat development with a focus on H-point, static and dynamic seating comfort, as well as the numerical modelling of human bodies