Senior Design 2003- -2004 2004 Senior Design 2003 Project # 04024 - - PowerPoint PPT Presentation

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Senior Design 2003- -2004 2004 Senior Design 2003 Project # 04024 - - PowerPoint PPT Presentation

Jan 18, 2023 150 likes •355 views

www.ozsaferooms.com Senior Design 2003- -2004 2004 Senior Design 2003 Project # 04024 Project # 04024 Team: Team: Chris Moore (ME) Chris Moore (ME) Brett Kimball (ME) Brett Kimball (ME) Matt Barton (ME) Matt Barton (ME) Matt Weaver

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SLIDE 1

www.ozsaferooms.com

Senior Design 2003 Senior Design 2003-

  • 2004

2004

Project # 04024 Project # 04024 Team: Team:

Chris Moore (ME) Chris Moore (ME) Brett Kimball (ME) Brett Kimball (ME) Matt Barton (ME) Matt Barton (ME) Matt Weaver (ME) Matt Weaver (ME) Brian Conway (ISE) Brian Conway (ISE) Rugwed Rugwed Phatak Phatak (EE) (EE) Faculty Mentor: Benjamin Varela (ME) Faculty Mentor: Benjamin Varela (ME)

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SLIDE 2

Zagorski Zagorski Forms Specialists, Inc Forms Specialists, Inc

  • Drew

Drew Zagorski Zagorski, Sr. is the , Sr. is the inventor of OZ inventor of OZ Saferooms Saferooms

  • Continuously Poured, Steel

Continuously Poured, Steel-

  • Reinforced, Concrete

Reinforced, Concrete Structures Structures

  • Tornado safe room

Tornado safe room

  • Fabricated on

Fabricated on-

  • site

site

  • Located in Rochester, NY

Located in Rochester, NY

  • Primary market in Oklahoma

Primary market in Oklahoma

Unharmed safe room after a direct hit from a TORNADO

R-I -T OZ Saferooms Project # 04024

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SLIDE 3

Project Description Project Description

  • Project Objective: Analyze the structure to determine its survi

Project Objective: Analyze the structure to determine its survivability vability

  • Finite Element Analysis (FEA)

Finite Element Analysis (FEA)

  • Develop sensor package to obtain experimental test data

Develop sensor package to obtain experimental test data

  • Scope Limitations

Scope Limitations

  • Budget = $2000

Budget = $2000

  • Time period = 20 weeks

Time period = 20 weeks

  • Will not analyze the structure

Will not analyze the structure’ ’s door s door

  • Stakeholders

Stakeholders

  • Families, Federal Emergency Management Agency (FEMA), RIT, local

Families, Federal Emergency Management Agency (FEMA), RIT, local authorities authorities and rescue workers and rescue workers

  • Key Business Goals of

Key Business Goals of Zagorski Zagorski Forms Forms

  • Testing will quantify stresses on structure

Testing will quantify stresses on structure

  • FEMA support

FEMA support

  • Consumers to buy product

Consumers to buy product

R-I -T OZ Saferooms Project # 04024

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SLIDE 4

Statement of Work Statement of Work

Senior Design team 04024 shall deliver the following by May 21, Senior Design team 04024 shall deliver the following by May 21, 2004: 2004:

  • Mechanical Properties

Mechanical Properties

  • Determine mechanical properties of concrete by 3

Determine mechanical properties of concrete by 3-

  • point bending and

point bending and compression testing compression testing

  • Impact Test

Impact Test

  • Impact test on existing OZ

Impact test on existing OZ Saferoom Saferoom

  • Provide data and calculations from impact test

Provide data and calculations from impact test

  • Finite Element Analysis (FEA)

Finite Element Analysis (FEA)

  • FEA on three structures

FEA on three structures

  • FEA on

FEA on Zagorski Zagorski Forms Forms’ ’ preliminary design of a 20 preliminary design of a 20’ ’x30 x30’ ’ structure structure

  • Compare FEA and impact test results

Compare FEA and impact test results

  • Determine the conditions under which the structure will fail

Determine the conditions under which the structure will fail

R-I -T OZ Saferooms Project # 04024

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SLIDE 5

Mechanical Testing of Concrete Samples Mechanical Testing of Concrete Samples

Experimental Procedure and Data Analysis Experimental Procedure and Data Analysis

  • Procedure

Procedure

  • ASTM C 39 compression Test

ASTM C 39 compression Test

  • ASTM C 78

ASTM C 78-

  • 02 three

02 three-

  • point

point bending test bending test

  • Three samples will be tested

Three samples will be tested at three time periods after at three time periods after being produced being produced

  • 3 Days

3 Days

  • 7 Days

7 Days

  • 28 Days
  • Data Analysis

Data Analysis

  • Modulus of Elasticity

Modulus of Elasticity

  • Poisson

Poisson’ ’s Ratio s Ratio

  • Shear Modulus

Shear Modulus

  • Each sample tested in the same

Each sample tested in the same fashion for fashion for

  • Analysis of Variance

Analysis of Variance (ANOVA) (ANOVA)

  • Residual analysis of fitted

Residual analysis of fitted model model

  • Significant differences

Significant differences between levels

28 Days

between levels

R-I -T OZ Saferooms Project # 04024

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SLIDE 6

Mechanical Testing Plans Mechanical Testing Plans

  • Samples are set to arrive sometime during the week of

Samples are set to arrive sometime during the week of March 8 March 8th

th

  • Determine mechanical properties for more accurate

Determine mechanical properties for more accurate FEA FEA

Monday Tuesday Wednesday Thursday Friday 8-9am 9-10am 10-11am 11-12pm 12-1pm 1-2pm 2-3pm 3-4pm 4-5pm 5-6pm 6-7pm 7-8pm 348-02 348-01 348-04 348-03

Mechanics Lab Spring Schedule

3-Point Bending Setup

R-I -T OZ Saferooms Project # 04024

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SLIDE 7

Impact Test Impact Test

  • Problem Statement

Problem Statement

  • The purpose of this experiment is

The purpose of this experiment is to apply forces simulating those to apply forces simulating those imposed during an F imposed during an F-

  • 5 tornado

5 tornado and measure the response of the and measure the response of the structure structure’ ’s roof s roof

  • Through experimental testing,

Through experimental testing, collect data to assess the OZ collect data to assess the OZ Saferoom Saferoom

  • Possible Solutions

Possible Solutions

  • Statically load structure

Statically load structure’ ’s roof s roof

  • Measure deflection with laser

Measure deflection with laser pointer pointer

  • Measure deflection with strain

Measure deflection with strain gauge gauge

  • Dynamically load structure

Dynamically load structure’ ’s roof s roof

  • Measure acceleration with

Measure acceleration with accelerometer accelerometer

R-I -T OZ Saferooms Project # 04024

Existing safe room in Macedon, NY

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SLIDE 8

Impact Test Feasibility Impact Test Feasibility

Feasibility Assessment (Impact Testing)

1 2 3 4 5 R1 R2 E1 E2 S1 T1 T2 P1 P2 P3 Concept 1 - Accelerometer Concept 2 - Strain Gauge Baseline - Laser Pointer ATTRIBUTES R1 Sufficient Skills R2 Sufficient Equipment to launch projectiles E1 Total Cost E2 Cost of Assembly S1 Meeting Milestones T1 Ability to Implement T2 Documentation/Standards P1 Dynamic Loading P2 Projectiles P3 Data Acquisition

R-I -T OZ Saferooms Project # 04024

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SLIDE 9

Impact Test Plan Solution Impact Test Plan Solution

  • Impact load

Impact load

  • Concrete block made by sponsor

Concrete block made by sponsor

  • Crane used to drop block

Crane used to drop block

  • Accelerometer

Accelerometer

  • PCB

PCB Piezotronics Piezotronics Model 353B03 Model 353B03

  • Data Acquisition

Data Acquisition

  • Provided by RIT

Provided by RIT

  • National Instrument Signal

National Instrument Signal Conditioner SCXI 1531 and SCXI Conditioner SCXI 1531 and SCXI Chassis Chassis

  • National Instrument PC interface card,

National Instrument PC interface card, model 6052E model 6052E

  • Labview

Labview

  • Safety Issues

Safety Issues

  • Cracking of concrete weight

Cracking of concrete weight

  • Accelerometer

Accelerometer

  • DAQ

DAQ

R-I -T OZ Saferooms Project # 04024

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SLIDE 10

Impact Test Future Plans Impact Test Future Plans

  • Preliminary testing of accelerometer and DAQ

Preliminary testing of accelerometer and DAQ

  • Actual test date depends on Sponsor availability

Actual test date depends on Sponsor availability

  • Use data to calculate deflection

Use data to calculate deflection

  • Measure frequency response of structure

Measure frequency response of structure

  • Compare frequency response results with FEA

Compare frequency response results with FEA

R-I -T OZ Saferooms Project # 04024

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SLIDE 11

Finite Element Analysis Finite Element Analysis (FEA)

(FEA)

Mesh Stress Deflection Stress

R-I -T OZ Saferooms Project # 04024

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SLIDE 12

Finite Element Analysis Finite Element Analysis

  • I

I-

  • DEAS

DEAS

  • The software assists in calculating

The software assists in calculating stress, shear force, loads, deflections, stress, shear force, loads, deflections, frequency response and other frequency response and other parameters parameters

  • Four different structures

Four different structures

  • Existing 6

Existing 6’ ’-

  • 6

6” ” x 6 x 6’ ’-

  • 6

6” ” x 7 x 7’ ’-

  • 8

8” ” (outside (outside dimensions) safe room dimensions) safe room

  • 8

8’ ’-

  • 6

6” ” x 8 x 8’ ’-

  • 6

6” ” x 7 x 7’ ’-

  • 8

8” ” (outside (outside dimensions) safe room dimensions) safe room

  • 10

10’ ’-

  • 6

6” ” x 10 x 10’ ’-

  • 6

6” ” x 7 x 7’ ’-

  • 8

8” ” (outside (outside dimensions) safe room dimensions) safe room

  • Preliminary design of 20

Preliminary design of 20’ ’ x 30 x 30’ ’ x 7 x 7’ ’-

  • 8

8” ” (outside dimensions) safe room (outside dimensions) safe room

  • Assumptions

Assumptions

  • Properties of 5000

Properties of 5000 psi psi concrete concrete

  • Monolithic Pour

Monolithic Pour

  • Rebar not analyzed

Stress from 2500 lb distributed load

Rebar not analyzed

R-I -T OZ Saferooms Project # 04024

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SLIDE 13

Finite Element Analysis Finite Element Analysis

Verify Mesh: H Verify Mesh: H-

  • Convergence

Convergence

Mesh size (in^2) Displacement (in) Stress (psi) % Difference displacement % Difference Stress 4 2.02E-04 8.43

  • 5

1.99E-04 8.35 1.49 0.95 7 1.95E-04 6.37 3.47 24.44 10 1.91E-04 6.26 5.45 25.74

Note: 6.5’ x 6.5’ Structure Mesh Values, 2500 lb Distributed Load

Mesh = 4 Mesh = 7 Mesh = 10

R-I -T OZ Saferooms Project # 04024

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SLIDE 14

FEA Plan FEA Plan

  • Mechanical properties will be used in the final

Mechanical properties will be used in the final finite element models finite element models

  • Compare FEA and impact test results

Compare FEA and impact test results

  • 10% compliance

10% compliance

  • Test structure to failure using FEA

Test structure to failure using FEA

  • Dynamic impulse loads

Dynamic impulse loads

  • Continue preliminary analysis of 20

Continue preliminary analysis of 20’ ’x30 x30’ ’ structure structure

R-I -T OZ Saferooms Project # 04024

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SLIDE 15

Budget Plan Budget Plan

P/N Description $/per Qty Total Supplier 353B03 Accelerometer $285.00 3 $855.00 PCB 003EB100AC Cable (100ft) $171.00 1 $171.00 PCB 6052E PC Interface Card

  • 1
  • National

Instruments SCXI 1531 Signal Conditioner

  • 1
  • National

Instruments

  • SCXI Chassis
  • 1
  • National

Instruments

  • Labview Software
  • 1
  • National

Instruments 081B05 10-32 Mounting Stud

  • 1
  • PCB
  • Accelerometer Fixture
  • 1
  • RIT Machine Shop
  • Crane
  • 1
  • Sponsor
  • Impact Load
  • 1
  • Sponsor
  • Tinius Olsen machine
  • 1
  • RIT Mechanics Lab
  • Computer
  • 1
  • RIT Mechanics Lab
  • 6" diameter x 12" height cylindrical concrete

samples

  • 9
  • Sponsor
  • 4"x4"x14" concrete beam samples
  • 9
  • Sponsor
  • 3 steel rods for three-point bending fixture
  • 1
  • RIT Machine Shop
  • Base Plate for three-point bending fixture
  • 1
  • RIT Machine Shop

Total Cost: $1026.00 Sample Testing Impact Testing

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SLIDE 16

Schedule Plan Schedule Plan

R-I -T OZ Saferooms Project # 04024

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SLIDE 17

Detailed Schedule Plan Detailed Schedule Plan

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SLIDE 18

Work Plan Work Plan

ANALYSIS OF OZ SAFEROOM STRUCTURE

SAMPLE TESTING FINITE ELEMENT ANALYSIS IMPACT TESTING 3-POINT BENDING & COMPRESSION SENSING SYSTEM ROOF LOAD DETERMINATION Brett PROJECTILES & EQUIPMENT Brett

DOCUMENTATION & STANDARDS

Brett

ACCELEROMETER FIXTURE ACCELEROMETER

Rug LABVIEW DATA ACQUISITION HARDWARE Rug SOFTWARE Rug I-DEAS MODELING EXISTING STRUCTURE (6’, 8’, 10’) Barton/Weaver LARGER STRUCTURE Barton/Weaver HARDWARE Brian SOFTWARE Brian

DOCUMENTATION & STANDARDS

Brian FIXTURE DESIGN & DRAWINGS Chris FABRICATION Brian/Chris PROCEDURE Brian PROCEDURE Brian/Brett/Rug DESIGN & DRAWINGS Brett/Barton FABRICATION Brett/Weaver

Blue = Accomplished Tasks

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SLIDE 19

Conclusion Conclusion

  • We are on schedule to complete all deliverables by

We are on schedule to complete all deliverables by the end of Senior Design II the end of Senior Design II

  • Date of impact test depends on sponsor availability

Date of impact test depends on sponsor availability

  • Thank You!

Thank You!

R-I -T OZ Saferooms Project # 04024