Integrated Engineering

Engineering Week

Contests

Following are contest areas and rules. Please register for contests before 5:00 p.m. on Monday, February 10, 2014.This information will help us ensure that we have adequate space and materials for contest participants. We ask that teachers take an active role in ensuring that their students are in the right place at the right time for contests.

Registration and check-in for your Bridge, Catapult, Trebuchet, and/or Pinewood Derby car is 8:30 a.m. - 9:30 a.m. in the Sharwan Smith Center Ballroom.

No additional entries will be accepted after 9:30 a.m.


Efficient Bridge

The object of this competition is to build the lightest bridge that meets dimensional and construction constraints and that will withstand a load of 20 lbs.

Specifications

The bridge will be supported from piers at each end. The Piers are 18 inches apart and have surface areas ¾-inch wide and 4 inches long, as shown. The bridge shall have a floor or load-bearing surface that extends at least to the inside edges of the piers, but the only load that will be applied is the testing load. That load will be applied through a 1 ½” diameter washer on a ¼” hook bolt at the center of the span as shown. There must be an opening in the floor of the bridge to allow the bolt to pass through the bridge floor and reasonable access through which to place the nut on the bolt.

The bridge shall be at least 3 inches wide but no more than 4 inches wide. Construction materials shall consist of wood and glue only. The types of wood and glue are arbitrary, but keep in mind that the lightest bridge wins. The height of the bridge above the pier support surfaces shall not exceed 6 inches and no part of the bridge shall extend more than 1 inch below the level of the pier support surfaces. There is no maximum length constraint.

Testing

Bridges will be weighed and measured immediately prior to the test. The method of loading will be to affix the bolt and washer, place the supported weight on the hook, and then slowly remove the support. If the bridge conforms to construction and dimensional requirements and successfully supports the load, it qualifies for Tier 1 of the competition. A bridge not conforming to construction requirements but supporting the weight will be placed in Tier 2 and can only win if there are no qualifying bridges in Tier 1.

The lightest qualifying bridge to support the load will be the winner. In the event of a tie on weight, the bridge with the lowest vertical measurement wins. A tie would be won by the widest bridge (not exceeding the maximum width of 4 inches).

Purpose: To construct a bridge using balsa wood and glue that will achieve a maximum failure load to tare weight ratio.

Rules:
a. Only balsa wood and glue (any kind of adhesive or bonding agent) may be used.
b. Bridges will be supported on rods that are 22 inches apart; therefore, the bridge must be at least 22 plus inches long.
c. Bridges can be no higher (lowest to highest point) than 8 inches.
d. Bridges can be no wider than 1.5 inches.

Balsa Bridge Building Contest - Wednesday, February 19, 2014 @ 9:30 – 11:30 a.m. in the Sharwan Smith Center Ballroom.

On-line Registration Form

REGISTRATION DEADLINE IS MONDAY, FEBRUARY 10, 2014.


Balloon Race

The object of this competition is to apply nearly neutral buoyancy to a helium-filled balloon such that it rises only very slowly. Balloons thus loaded will be released from a table top. To each balloon will be attached a tether thread secured to a weight on the floor. The balloon that takes the longest time to cause the tether thread to become taut is the winner. Note that it must rise completely to the end of the tether to qualify.

Materials

Each contestant will be provided with a helium-filled balloon to which is tied, in addition to the tether thread, a short length of string or ribbon with a paper clip tied to the end not tied to the balloon. Also furnished will be standard 3 x 5 inch cards for ballast, a ruler, a pen or pencil, scissors, a balance or scale, and standard weights of 5, 10, 20 grams.

Procedure

Each contestant is to determine the buoyant force exerted by the balloon using only the materials provided. Based on that measurement and measurement of the weight and dimensions of the card stock, the contestant will determine the size of the card piece or pieces needed to establish neutral buoyancy. The contestant may make only one cut on one card in coming up with the required ballast. The ballast is then secured to the balloon using the paper clip on the string or ribbon, and the balloon is launched by releasing hold on the string or ribbon with the ballast lying flat on the table. All balloons that rise from the table are eligible for Tier 1 competition. Any balloon that touches the floor or fails to rise from the launch table or to fully extend the tether within a 10-minute elapsed time is disqualified from Tier 1. Stop-watches will be used to time the balloon rise. The balloon taking the longest time (but less than 10 minutes) to fully extend the tether is the winner. Any contestant who requires more than one cut on a card, for example after having one or more unsuccessful launches or who makes more than one cut before the first launch, goes into Tier 2 and can only win if there are no balloons qualifying in Tier 1.

Balloon Race - Wednesday, February 19, 2014 @ 9:30 – 11:30 a.m. in the Sharwan Smith Center Ballroom.

On-line Registration Form

REGISTRATION DEADLINE IS MONDAY, FEBRUARY 10, 2014.


Paper Airplane Contest

There are two paper airplane contests. Each involves making a paper airplane from a single sheet of standard copy paper. One paper clip may be used for ballast if desired.

The Missile

The object of this competition is to create an airplane that achieves both optimum range and accuracy.

A measuring line will be laid out on the competition floor. Contestants will stand at one end of the measuring line and throw their paper airplane. The distance recorded will be measured perpendicularly from the measuring line to the nose of the airplane at its final resting position (refer to the figure). If the plane flies in a different direction, the distance will be short. Contestants will have one trial for record.

The Floater

This competition is to design and fly a paper airplane that will stay airborne the longest. Again, the plane must be made from a single sheet of standard copy paper. The contestant will launch the plane while standing on the floor, and the time it takes for the plane to reach the floor will be recorded. Each contestant will have 2 chances to record a time. The contestant with the longest time wins. In the event of a tie in the recorded times, there will be one more flight for the planes with the best time. The longest time in that competition wins.

Paper Airplane Contest - Wednesday, February 19, 2014 @ 9:30 – 11:30 a.m. in the Sharwan Smith Center Ballroom.

On-line Registration Form

REGISTRATION DEADLINE IS MONDAY, FEBRUARY 10, 2014.


Catapult and Trebuchet

In this competition, students will design and build a catapult or trebuchet capable of launching a standard golf ball. There will be two competitions.

Accuracy

The first competition is for machines that that will throw the golf ball to pre-determined distances between 5 feet and 10 feet. To succeed, the golf ball must hit a 1-foot square target on the floor or ground from a distance that is measured but unknown to the contestant until the time of the competition. Three shots will be allowed to hit the target. Any contestant who is successful at hitting the target in 3 shots or less will go into a second round of competition at a different distance. If more than 1 contestant succeeds at that distance, the contestant with the fewest shots in round 2 wins. If a tie, the contestant with the fewest shots in round 1 wins. If no contestants succeed in the second round, the contestant with the fewest shots wins. If no shots hit the target, the contestant coming the closest wins.

Catapults or trebuchets in the accuracy category may be built from any materials, but no energy storage devices (springs, battery/motor, etc.) may be included except weights working in a gravity field. They must have a footprint on the floor no greater than 2 feet by 2 feet and must be no more than 2 feet high in any configuration. For trebuchets, the height envelope does not include the sling, but it does include the throwing arm. Adjustments may be made on the “aiming” mechanism, if any, between shots. All shots will be made from the same location on the floor or ground.

Range

The second competition is purely for range. The contestant whose machine throws the golf ball the farthest wins. Catapults or trebuchets in the range contest may be built from any materials, but no chemical energy storage devices (batteries, explosives, etc.) may be included. Mechanical energy storage such as springs, elastics, compressed gas, and weights working in a gravity field are allowed. The devices in this category must have a footprint on the floor or ground no greater than four feet by four feet and must be no more than 4 feet high in any configuration. For trebuchets, the height envelope does not include the sling, but it does include the throwing arm. All shots will be made from the same location on the floor or ground. Contestants will have 2 shots for record. The longest shot wins. In the event of a tie, the winners will get one more shot and the longest wins.

Catapult & Trebuchet Competition - Wednesday, February 19, 2014 @ 9:30 – 11:30 a.m. on the Business Quad in front of the Library.

On-line Registration Form

REGISTRATION DEADLINE IS MONDAY, FEBRUARY 10, 2014.


CAD Shootout

Sponsored by the CAD/CAM Engineering Technology Dept.

This event is a measure of speed and competency with 3-D design programs. Contestants can choose their design tool (CATIA, Inventor, SolidWorks or AutoCAD). A computer with these design software programs will be supplied.

Contestants will be given 5 minutes to create a 3D solid model and or solve a design problem using the selected CAD Software.

At the end of 5 minutes the contestant will be judged on the completeness/correctness of the design.

The person submitting the most complete/correct part at the end of 5 minutes will be the winner.

If more than one contestant completes the part within the 5 minute time frame then the winner will be decided by judging the time required to complete the part. The shortest time wins.

CAD Shootout - Wednesday, February 19, 2014 @ 9:30 – 11:30 a.m. in TH 120.

On-line Registration Form

REGISTRATION DEADLINE IS MONDAY, FEBRUARY 10, 2014.


Pinewood Derby

This contest is similar in many ways to those held in Cub Scouting programs across the country. Cars must be made primarily of wood and may not weigh more than 5 ounces. There are no other constraints for this contest on construction of cars or wheels. Gravity is the only means of propulsion. Cars are raced on a track that has a guide rail in the middle of each lane. That rail is 1.5 inches wide and 0.25 inch high. The starting position is approximately 4 feet above the ground and the track is approximately 40 feet long. Cars will be weighed and impounded prior to the start of competition.

Speed Competition

Cars will be raced in heats of 4 cars (or fewer depending on the number of contestants remaining), and the first car to cross the finish line is the winner of the race. There will be at least two races per heat with cars starting in different lanes, and to win the heat, a car must come in first in two of the races in that heat. Once all entrants have raced, first-round heat winners will compete head-to-head in additional heats using the same rules. Cars not winning their heat are eliminated from further competition. Winners of second round heats will compete in third-round heats and so on until the fastest car and runner up are determined.

Style Competition

This contest is intended to showcase the derby cars with “style” after they have finished racing. The cars will be displayed on a table and monitored by an event staff member. When students register in the morning, each will be given a ballot. Once the cars are on display, students simply drop their ballot in the box next to the car they think demonstrates the most creative thought and style. The winner will be the car that gets the most ballots. In the event of a tie vote for style, the car with the fastest speed will be the winner.

Derby cars may be constructed of any materials with no weight restrictions! Winning derby cars must complete numerous races without adjustment. Cars may be entered from 3:30 p.m. – 3:50 p.m. Winners do not need to be present during the race.

Rules: 
a. Cars will race in heats, 4 cars to a heat.
b. Each heat will consist of a minimum of 4 races; each car will run each lane.
c. The heat winner will advance.
d. In the event of a tie, a successive heat will be run with all 4 cars.
e. Track hazards may be encountered, cars not negotiating hazards are not disqualified; they just don’t finish that run (including cars run off by neighbors).
f. After the first 4 heats, the winners of those heats will run against each other.
g. Racing will continue until the winner is established.
h. No pit stops between races or heats for repairs, substitutions, maintenance, etc. 
i. Judges’ decisions at the finish line will be final. 
j. ABSOLUTELY NO GRAPHITE WILL BE ALLOWED!

Safety:
a. No Pyrotechnics, rocket motors, flammable liquids or explosives.
b. No compressed gas cylinders of any kind. 
c. Cars cannot be propelled from the track.
d. Judges may disqualify any car deemed a hazard.

Size limitations:
a. 2.75 inch maximum width
b. 6 inch maximum height
c. 12 inch maximum length
d. 0.375 inch minimum clearance
e. 1.75 inch minimum width between wheels

Pinewood Derby and Style Competition - Wednesday, February 19, 2014 @ 9:30 – 11:30 a.m. in the Sharwan Smith Center Ballroom.

On-line Registration Form

REGISTRATION DEADLINE IS MONDAY, FEBRUARY 10, 2014.