Problem with Section 7.1 Task 5 of Simscape onramp

27 次查看（过去 30 天）

玄人市川 2021-5-5

7
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/821935-problem-with-section-7-1-task-5-of-simscape-onramp

编辑： Kartik 2024-9-24

Although I correctly configured the model blocks and parameters accordingly to the directions, the training evaluation said my output did not match the answer. It prevents me from proceeding to the next task.

Here I attach two snapshots of the evaluation plot of Section 7.1 Task 5 where the problem occured.

The first picture shows comparison of the signals spanning to the end time (10sec). It looks to me exact agreement between the requirement and my signal, but it indicates slight discrepancies in the beginning of simulation (from 0 sec to around 1.0 sec) shown by the red dots. Due to these errors, the evaluator says my signal is incorrect.

The second picture zooms into the details of the red dots. It looks to me my signal has a slight delay to the answer.

I confirmed that my setup is consistent with the directions and the results unchanged even after several retries from the beginning of Section 7.1.

I am wondering if there is another parameter to be adjusted, which is not explicitly directed.

Can I have your help for solving this problem?

7 个评论
显示 5更早的评论隐藏 5更早的评论

Amanullah S 2021-12-4

Thank you I too strucked and rectified after giving priority as low

Eric Guil Vidal 2021-12-19

For me worked setting "low"

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Joel Van Sickel 2021-8-18

6
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/821935-problem-with-section-7-1-task-5-of-simscape-onramp#answer_769884

I am pasting Lianna's comment here as it is the solution.

Lianna Cubias on 7 Aug 2021 at 9:16

Figured it out! Finally!

Do tasks 1-5 as instructed. All that is correct. Before running the model in Task 5 try this:

Check the settings on the "Rotational electromechanical converter" block that your "ideal rotational motion sensor" is connected to. Go to the "Variables" tab, check the override box for "Angular velocity" and set priority to "high". Everything else, leave it the way it is. Then run the model. This worked for me because I was having this exact problem.