Short answer
Actively seek out and question components whose primary role appears to be facilitating manufacturing or assembly, as these are prime candidates for weight reduction.
- Field
- Resource Management
- Source
- TigerPrints (Clemson University) (2010)
- Method
- Case study analysis
- Sample
- 1500 parts (in a single vehicle model)
- Evidence
- Strong effect
Components designed primarily to aid manufacturing and assembly, rather than for end-user function, can be identified using geometric and assembly indicators, offering significant potential for mass reduction. This resource management research insight is drawn from a 2010 study published in TigerPrints (Clemson University). Using Case study analysis with 1500 parts (in a single vehicle model), researchers explored how this design variable affects real-world outcomes. The key design takeaway: Actively seek out and question components whose primary role appears to be facilitating manufacturing or assembly, as these are prime candidates for weight reduction.
Identify 'Lazy' Components for 5% Vehicle Mass Reduction
Components designed primarily to aid manufacturing and assembly, rather than for end-user function, can be identified using geometric and assembly indicators, offering significant potential for mass reduction.
TigerPrints (Clemson University) · 2010
Key Findings
- 01A mass savings potential of approximately 5% (114 kg) was identified in the case study vehicle.
- 02The combination of 'rigid-to-rigid connection' and 'duplicate geometry' indicators showed the greatest potential for mass savings.
- 03The method allows entry-level engineers to identify mass savings potential based on geometric and assembly relationships.
Application
Design takeaway
Actively seek out and question components whose primary role appears to be facilitating manufacturing or assembly, as these are prime candidates for weight reduction.
How to apply
During the conceptual and detailed design phases, systematically review each component using the defined laziness indicators. Prioritize redesign or elimination of components exhibiting multiple indicators.
Project actions
- 01When designing a product, think about which parts are essential for the user and which are only there to help you put it together.
- 02Develop a checklist of geometric features that indicate a part might be 'lazy'.
Method & Evidence
Variables
Strengths & Limitations
Strengths
- +Provides a systematic, geometry-based approach to mass reduction.
- +Empowers designers and engineers with limited functional expertise to identify savings opportunities.
Limitations
It can be difficult to definitively determine a part's sole purpose without deep functional knowledge. Some 'lazy' features might be unavoidable for structural integrity or complex assembly processes.
Reliability & validity
The reliability of the method depends on consistent application of the defined indicators. Validity is supported by the demonstrated mass savings in a real-world case study, though generalizability to all vehicle types requires further testing.
Think critically
To what extent can a component be considered 'lazy' if its assembly aid also contributes indirectly to structural integrity or modularity?
Design Principles
"Prioritize functional components; scrutinize and simplify or eliminate components solely for manufacturing or assembly aid."
Reducing vehicle mass directly impacts fuel efficiency and environmental performance. By systematically identifying and redesigning or eliminating 'lazy' components, designers can achieve substantial material savings and contribute to more sustainable product development.
What This Means for Your Design
Some parts in a car are there just to make it easier to build, not to help it drive or be used. By spotting these 'lazy' parts using their shape and how they connect, you can make the car lighter.
How to use in your project
- 1.Use the 'Lazy Part Identification' method to analyze components in your design project for potential mass reduction.
- 2.Document the indicators you find for specific parts and explain how their removal or redesign would lead to weight savings.
Add to My Project
Quick Cite
Paragraph starter
This design project adopted a 'Lazy Part Identification' methodology to systematically identify components whose primary function is to aid in manufacturing and assembly rather than end-user utility. By applying geometric and assembly indicators such as rigid-to-rigid connections and duplicate geometry, a significant potential for mass reduction was identified, leading to a more resource-efficient design.
Source
TigerPrints (Clemson University)
Mass and assembly time reduction for future generation automotive vehicles based on existing vehicle model
journal · 2010
View sourceQuestions About This Research
- What does the research say about identify 'lazy' components for 5% vehicle mass reduction?
- Actively seek out and question components whose primary role appears to be facilitating manufacturing or assembly, as these are prime candidates for weight reduction. Evidence: TigerPrints (Clemson University) (2010).
- Why does "Identify 'Lazy' Components for 5% Vehicle Mass Reduction" matter for design?
- Reducing vehicle mass directly impacts fuel efficiency and environmental performance. By systematically identifying and redesigning or eliminating 'lazy' components, designers can achieve substantial material savings and contribute to more sustainable product development.
- How can designers apply this research?
- Actively seek out and question components whose primary role appears to be facilitating manufacturing or assembly, as these are prime candidates for weight reduction.
- What were the main findings?
- A mass savings potential of approximately 5% (114 kg) was identified in the case study vehicle.. The combination of 'rigid-to-rigid connection' and 'duplicate geometry' indicators showed the greatest potential for mass savings.. The method allows entry-level engineers to identify mass savings potential based on geometric and assembly relationships.
- What research method was used?
- Case study analysis with 1500 parts (in a single vehicle model).
- How strong is the evidence?
- Evidence strength is rated Strong effect, based on a 2010 journal from TigerPrints (Clemson University).
- What should I do differently in my next project?
- During the conceptual and detailed design phases, systematically review each component using the defined laziness indicators. Prioritize redesign or elimination of components exhibiting multiple indicators.
- What are the limitations?
- The effectiveness of the indicators may vary depending on the complexity and specific design choices of different vehicle architectures. The study focused on mass reduction, not necessarily cost or performance implications of redesign.