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  2. 科学奥林匹克
  3. SkyCiv科学奥林匹克 2023 竞赛应用

SkyCiv科学奥林匹克 2023 竞赛应用

Design and test your Tower structures, 使用科学奥林匹克应用程序

SkyCiv has partnered with Science Olympiad to help digitize the Science Olympiad competition for the 2023-24 季节! The app sits inside SkyCiv Structural 3D to simulate the competition testing.

 

The SkyCiv Science Olympiad App will auto-analyze and test your structure based on the competition criteria. Instead of physically building the model and testing it under a load of a bucket of sand, the App will apply the load gradually and test it based on Finite Element Analysis. Key results are then displayed, with some insight into why the structure is failing. The app will also test the rules and guidelines of the competition, including the load distance, structure width, material usage, 和更多 (见下文).

入门

After signing up for a Science Olympiad Account (or SkyCiv Student Account), login and visit your account settings: https://platform.skyciv.com/account/settings Under Add-ons and Integrations, you should see a 科学奥林匹克 应用程序. Switch that on and click Save Settings. 一旦完成, 访问 SkyCiv结构3D and you should see the Science Olympiad app under Add-ons 在顶部导航栏中:

App Startup

单击此按钮将启动应用程序并允许您开始测试您的模型.

Building Requirements

Each individual event, 竞赛, 或部门可能有自己的一套建筑要求. 然而, there are some consistent building requirements for the app, that should be met regardless of what level of competition you’re in.

Area Loading

  • The number of Area Loads the Tower must support is two for Regionals, three for State, and four for Nationals.
  • One Area Load must have nodes at (x = ±2.5 cm, y = 50 厘米, z = ±2.5 cm) for Division B and (x =±2.5 cm, y = 60.0 厘米, z = ± 2.5 厘米) for Division C.
  • The other Area Load(s) will have nodes at coordinates specified by the Event Supervisor in the range (-20 cm ≤ x ≤ 20 厘米, 12.5 ≤ y ≤ 37.5 厘米, z = ±2.5 cm) for Division B and (-20 cm ≤ x ≤ 20 厘米, 15.0 ≤ y ≤ 45.0 厘米, z = ±2.5 cm) for Division C.
  • The y-coordinates for all nodes in an Area Load must be the same.
  • Your area load should be a 双向 -60 kPa force over a 5x5cm square. Area load nodes (角节点ID 输入) should be entered in a clockwise or anti-clockwise direction. Here is an example of a correctly applied area load:

也, note the variance is 0.00% this is also required for the successful solve of your structure.

Building Direction

You will also need to build your structure in the Y-direction. 再次, here is an example of a correctly built structure:

 

点载荷

Each of the four nodes of the Area Load, must have a Point Load in the positive-z direction with magnitude 5–25 N, the same magnitude for all Point Loads.

支持

The Tower must be supported using exactly four supports placed in the plane of the Test Base (y = 0); two must be “Horizontal Rollers in X” with x-coordinates ≥ 20 cm and two must be “3D Pin Supports” with x-coordinates ≤ -20 厘米, without restrictions on z-coordinates.

栏目

The cross-section of individual members must be rectangular with minimum cross-sectional dimensions as specified in SkyCiv of 1.5 mm by 1.5

 

Results and Scoring

Main Results

The app will run through about 100 iterations to calculate the load at which the structure fails (if in fact, it fails). 在此过程中, it will calculate the following results:

  • Max Stress: this is the stress that your members are undergoing under the peak load. If your structure is failing due to stress (stress exceeding 7MPa) then this result will hover under that stress limit.
  • 结构重量: the weight of the structure. This value is used as the denominator in the calculation of the performance score. So the lower this value, the higher your score.
  • 结构能力: how much weight your structure held (excludes self-weight).
  • 表现得分:
    • Towers that have a Load Supported of 15,000 g will earn a Bonus of 5,000
    • The Load Score = Load Supported (4.e.) + 奖金
    • Score = Load Score (G)/Mass of Tower (G).

Criteria Checks

In the background, the app will be checking the following:

  • Correctly placed area loads and point loads.
  • A correct number of area loads and point loads.
  • Materials used were one of 3 allowable Balsa Wood grades
  • Plus more

These results will be submitted with your overall score to ensure the rules and guidelines of the competition are met.

比赛模式

On your designated event day, users will toggle on the 比赛模式 在右上角. 重要的: Toggling on this switch will delete your model, remove some of the functionality in S3D and limit the number of solves for 48 小时. Please do not toggle this on unless it is your competition/event day. The blue Submit Score button will also become available where you can submit your final score via the below form.

Submitting your Score

When you are happy with your design you can submit itbut be careful, you can only do this once! This will submit your score to Science Olympiad to compete against other teams. You’ll need your Event ID and team ID which you should have from your state director. In order to submit your score, you will have to be in 比赛模式. 从那里, you will need to rebuild your model from scratch and test it to get a score. Once you’re happy with your score, 点击 Submit Last Score and fill out the submission form. This will confirm your score, and allow you to select an event name from a dropdown list:

so-2021-submit-form

Your score will then be lodged in CSV format for the event organizers to download from their custom links.

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