diff --git a/.obsidian/graph.json b/.obsidian/graph.json index 12c57f275..85f51ecf1 100755 --- a/.obsidian/graph.json +++ b/.obsidian/graph.json @@ -1,7 +1,7 @@ { "collapse-filter": false, "search": "", - "showTags": false, + "showTags": true, "showAttachments": false, "hideUnresolved": false, "showOrphans": true, @@ -63,10 +63,10 @@ "nodeSizeMultiplier": 1, "lineSizeMultiplier": 1, "collapse-forces": false, - "centerStrength": 0.518713248970312, - "repelStrength": 11.9791666666667, - "linkStrength": 1, - "linkDistance": 148, - "scale": 0.200225830078125, - "close": true + "centerStrength": 0.338541666666667, + "repelStrength": 6.14583333333333, + "linkStrength": 0.864583333333333, + "linkDistance": 30, + "scale": 0.0889892578125, + "close": false } \ No newline at end of file diff --git a/200 Library Papers/atsumiModifiedBodePlots2012.md b/200 Library Papers/atsumiModifiedBodePlots2012.md index e30fcc31e..d9ad846d8 100644 --- a/200 Library Papers/atsumiModifiedBodePlots2012.md +++ b/200 Library Papers/atsumiModifiedBodePlots2012.md @@ -1,32 +1,16 @@ --- -readstatus: false -dateread: -title: "Modified Bode Plots for Robust Performance in SISO Systems With Structured and Unstructured Uncertainties" +readstatus: true +dateread: +title: Modified Bode Plots for Robust Performance in SISO Systems With Structured and Unstructured Uncertainties year: 2012 authors: - - - - "Atsumi, Takenori" - - - "Messner, William C." - - -citekey: "atsumiModifiedBodePlots2012" - -journal: "IEEE Transactions on Control Systems Technology" - - + - Atsumi, Takenori + - Messner, William C. +citekey: atsumiModifiedBodePlots2012 +journal: IEEE Transactions on Control Systems Technology volume: 20 - - issue: 2 - - - - - pages: 356-368 - --- # Indexing Information ## DOI @@ -59,6 +43,12 @@ pages: 356-368 > *The disadvantage of loop shaping is that the usual measures of robustness-gain margin and phase margin-are inadequate to account for all but the simplest uncertainties in the nominal model.* > -### Imported: 2024-10-16 10:59 am +>[!question] Don't Understand +> *Step 1) Determine the one or more frequency responses of , one gain frequency response of an upper bound of , and one gain frequency response of . They do not need to be transfer function models.* +> +> >[!note] Note +> >Kind of just make something up? I get this is definitely easier than a TF but still. + +### Imported: 2024-10-16 12:18 pm diff --git a/4 Qualifying Exam/3 Notes/Robust Control.md b/4 Qualifying Exam/3 Notes/Robust Control.md index f5b1ec3d5..bf12bef73 100644 --- a/4 Qualifying Exam/3 Notes/Robust Control.md +++ b/4 Qualifying Exam/3 Notes/Robust Control.md @@ -13,4 +13,7 @@ Not particularly a limit but something to look at: there are a ton of papers tha **Limitation**: Using automated design tools for robust control of SISO systems has its benefits outweighed by the labor involved in creating the weighting transfer functions [@atsumiModifiedBodePlots2012]. There is some work going on that tries to deal with this @atsumiModifiedBodePlots2012 . These people have made a tool that can create transfer functions using an upper bound of $\Delta$ and $W$ -**Limitation**: Disk unstructured uncertainty cannot lend itself to creating individual examples of perturbed plants. It is not as simple as picking a plant that is within the robust control disk, because the transfer function that actually gets you there is lost in the abstraction. Or perhaps generalized. \ No newline at end of file +**Limitation**: Disk unstructured uncertainty cannot lend itself to creating individual examples of perturbed plants. It is not as simple as picking a plant that is within the robust control disk, because the transfer function that actually gets you there is lost in the abstraction. Or perhaps generalized. + +**Limitation:** Verifying the model of a controller is not sufficient to verify the implementation of one. +- [ ] Find sources that support this claim⏳ 2024-10-16 \ No newline at end of file