Hemodynamics

HemodynamicsStar Splitters 4-H Club Two Rivers, WI

Hemodynamics

Safety

• Construction Safety• First Aid kit

• Environmental Concerns• Vehicle

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Scale Model Flight Test

• Altitude• Launch Summary• Motor Details• Weather Conditions

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Rocket Flight Stability in Static Margin DiagramHemodynamics

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Rail exit Velocity and Thrust to weight ratio

• Rail exit velocity• Small Scale: 58.7 ft/s• Full Scale: 73.0 ft/s

• Thrust to weight ratio• Small Scale: 6.55:1• Full scale: 5.29:1

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Motor Details for Small and Full ScaleHemodynamics

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Details Small Scale Full Scale

Name: H123 K550

Manufacturer: Cesaroni AerotechAverage Thrust: 122.5 N 326.8 N

Total Impulse: 232.4 N 1539.1 N

Burn Time: 1.9 s 3.9 s

Parachute Sizes and Descent Rates (Small and Full)

Details Full Scale Small ScaleDrogue Chute Size 24 in. OD/ 6 in.

Spilln/a

Main Chute Size 96 in. OD/ 12 in. Spill

20 in. Diameter

Drogue Chute Descent Rate

84.9 ft/s n/a

Main Chute Descent Rate

23.53 ft/s 40.0 ft/s

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Recovery

• Dual Deployment Avionics Test • Diagram next slide

• Ejection Charges• 2.2 grams for each charge

Recovery Avionics Testing

Switch

Bulb

9 v

Switch

VC

AC

B

Bulb

V

V

C

AC

B

V

9 v

Payload Overview

• Observe effects of rocket flight on blood pressure • Components• Record pressure throughout entire flight• Integration

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Payload Safety

• Safety Officer • Risk Mitigations in slide below• Hazards and Mitigations two slides below• Environmental concerns:• Blood• Battery

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Payload Risk Mitigations

Risk Probability Mitigation Failure AnalysisPipe Burst Low Check for leaks

prior to launch.Keep backup pipes on hand.

Battery Leak Low Use quality battery. Use gloves to clean up; seek medical attention if comes in contact with skin.

Pump Failure Low Get a reliable pump. Buy a different pump.

Wire break Low Wrap in electrical tape.

Keep extra wires on hand or repair wires.

Pressure monitor failure

Low Test monitor. Keep extra monitor on hand.

Blood leak Low Seal bulkhead with epoxy; seal off blood system from payload electronics.

Repair the seal.

Altimeter failure Low Get a reliable altimeter and test it.

Use a different altimeter.

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Payload Personal Hazards

Risk Probability Mitigation Failure AnalysisPipe Burst – Flying rubber may hit eyes.

Low Wear safety glasses If injured, seek medical attention.

Blood – can be ingested.

Low Wear gloves and keep hands away from face. Wash hands after use.

Seek medical attention.

Latex – allergic reactions can occur.

LowLow

Checked to make sure no one is allergic to latex tubing.

Seek medical attention.

Epoxy – can cause fire. Low Keep away from all sources of flame or intense heat.

Keep fire extinguisher nearby at all times.

Epoxy – can cause respiratory irritation, skin irritation, or eye irritation.

Mid-Low Use in a well-ventilated place.

Know where the nearest water source is for the flushing of skin/eyes. 

Short circuit – can receive burns.

Medium Wear gloves to avoid burns, and don’t connect power until wiring complete.

Keep a first-aid kit nearby at all times. 

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Educational Engagement

• Completed• 4-H Forensics Competition, Manitowoc

County• Wayside School presentation/activities

• Planned• 4-H Demonstration Event, Manitowoc

County• Present to other schools like Wayside

presentation

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Budget

• Finished Fundraisers• Ponderosa• Bake Sale• Flower Sale

• Ongoing Fundraisers• Seroogy’s Candy

• Expected Expenses• In Document

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