Strategic Integration and Automation of Conceptual Design

Strategic Integration and Automation of Conceptual Design

Haymaker, Law, Gane, Flager, Shkolnik

April 26, 2007

CIFE Research Proposal

Architecture Engineering Computer Sciences

Research Motivation

2Strategic Integration and Automation of Conceptual Design

The economic and environmental impacts of buildings in the U.S.:

Energy Raw materials

Can we do better?

Total building consumption

Impact determined by initial design Best practice reduction1

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Key

35% buildings 30% buildings

(USGBC, 2007)

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Limitations of Current Practice


Analysis toolsAnalysis tools


DAYLIGHT (RADIANCE, ECOTECT)

ACOUSTIC (ECOTECT)

CFD (FLUENT, FLOVENT)

STRUCTURAL (ETABS, SAP2000)

SOLAR RADIATION (ECOTECT, IES)

SHADOW (ECOTECT)




ACOUSTIC (ECOTECT)




SHADOW (ECOTECT)




ACOUSTIC (ECOTECT)




SHADOW (ECOTECT)

schedule constraints → limited use in conceptual design current methods → few options generated & analyzed

We have the tools:

Benchmarking Current AEC Practice


GENERATE ANALYZE DECIDEConstruct Geometry

Add analytical properties

Run Analysis

Evaluate Design

Coordinate Design

Optimize Design

Evaluate Program

Choose Design Theme / Goals

Construct Geometry

- Automated Process

- Semi-automated Process

- Manual Process

Conceptual / Schematic Design

METRICS

- Specification

- Management

- Execution

Process Duration (WEEKS)

7wks 5wks

. . . .

# iterations 20wks - 2.6

Analysis Framework (metrics)


MDA Tasks Definitions

Specificatio

n

Tasks(Processes) Determine what needs to be done and who does it?

Schemas(Information)

Determine what information is used and produced?

Execution Generate options & perform analyses

Manageme

nt

Integration Exchange information between processes

Communication Exchange information between people

Coordination Respond to conflicts and changes

Boeing MDA Process


GENERATE ANALYZE DECIDE

Conceptual / Schematic Design

METRICS

- Specification

- Management

- Execution

Process Duration (WEEKS)

6wks 4wks

. . . .

# iterations 20wks - 6 (initial)- 4 (reuse)

28wks 1.5hrs

. . . .

# iterations 20wks - 28 (initial)- 1.5 hrs (reuse)

MDO

LegacyConstruct Geometry

Add analytical properties

Run Analysis

Evaluate Design

Coordinate Design

Optimize Design

Evaluate Program

Choose Design Theme / Goals

Construct Geometry

- Automated Process

- Semi-automated Process

- Manual Process

PIDO Implementation - Aerospace Industry


Take

-off

gros

s w

eigh

t rati

o (T

OG

W)

Excess Propellant Fraction

Design Variables selected for vehicle optimisation

Hypersonic baseline vehicle versus optimized shape - Improved TOGW by a 39% margin despite an increase in drag

Research Tasks


Task Method

1 Benchmark current MDA 1.1 Directed interview

2 Generate options 2.1 Directed interview2.2 Parametric modeling

3 Integrate MDA processes3.1 Directed interview3.2 Evaluate data schema interoperability3.3 Implement chosen data schema3.4 Integrate entire iteration

4 Process automation and optimization

4.1 Commercial Process Integration Design Optimization (PIDO) software

1. Benchmark Current MDA


Project Company Services

Stanford Graduate School

of Business

Engineering (all

disciplines)

Jinta Tower – Tianjin, China

Architecture, Eng (Structural, MEP)

Case Studies: ARUP & SOM

Deliverables: Current MDA process diagram and metrics

2. Generate Options - Parametric Modeling


Victor Gane, SOM

Forest Flager, ARUP

Deliverables: Parametric MDA modeling methodology Parametric case study implementation and metrics

3. Integrate MDA Processes - Task & Schema


IFC: Industry Foundation Classes BPEL: Business Process Execution Language XML: eXtensible Markup Language (aecXML, gbXML, …) Narratives (Haymaker 2004)

Deliverables: Evaluation of existing data schemas Data schema case study implementation and

metrics

4. Process Automation & Optimization - PIDO


Integration & Automation of Processes Design, analysis and other tools

Design Space Study Design of experiments, optimization, etc…

Steel_Weight

Daylight 65% 80% 100%Lease_Span 49ft 35ft 55ft

Steel Weight Optimization

Bottom_Radius 181ft 181ft 180ft 210ft Middle_Radius 197ft 197ft 195ft 225ftTop_Radius 172ft 172ft 165ft 195ft

Deliverables: Reusable process for two case studies PIDO case study implementation and

metrics

Schedule, Deliverables


Quarter 1 Quarter 2 Quarter 3

Benchmark current MDA

Parametric modeling

Data schema implementation (entire iteration)

Current MDA process diagram and

metrics Evaluation of existing data

schemas

Evaluate data schema interoperability

Reusable process for two case studies PIDO case study implementation and metrics Journal paper CIFE Member ICE-Charrette

Parametric MDA modeling methodology Parametric case study implementation and metrics Data schema case study implementation and metrics

Rese

arch

Tas

ksD

eliv

erab

les

Process automation and optimization

PhD studentsVictor Gane – (3 Quarters) Alex Shkolnik – (3 Quarters)Forest Flager – (3 Quarters) (SGF)

Programmer – 20 hrs / week (3 Quarters) Haymaker – 1% Law – 1%

Total: $125,000

Offer CIFE members methodology implementation on their projects Approach participating companies (SOM / ARUP) for increased support Work provides cornerstone for Haymaker NSF career proposal

Funding

Future

Relationship to CIFE goals


Schedule performance Significant reduction in MDA iteration time

Cost conformance Accurate quantity take-offs for cost estimation

Sustainability Early stage MDA decision-making based on simulation of building performance

2015

VDC implementation Formalization of parametric methods & PIDO implementation

Integration 4 analyses (floor plate efficiency, daylight, structure & air flow)

Automation Use PIDO to automate current AEC practice to > 30%

2010

Questions

POD’s: Other Methodologies


Product Lifecycle Management (PLM) - An product design and management software - Primarily used in manufacturing industries

Semantic Integration (KIF, PIF & PSL)

Business Process Management (BPM) - Heterogeneous process specification and workflow management - Multi-organizational process oriented

Future work: Map solutions within PLM and BPM to AEC design practice

Documents

Strategic Integration and Automation of Conceptual Design