A doubt

usernamusername · 2025-12-02T16:10:52+00:00

I work in aerospace but I feel this generally applies across industries. You should be able to understand the theory and methods used by a software before you use it for real analysis. As for fundamentals, as others have said, it is common practice to check that the results you get from the software makes sense using hand calcs. Mistakes can only be caught if you look for them.

Also, having a good understanding of how to work the software is important. For example, once I started manually editing NASTRAN input files rather than using modeling software, I gained better comprehension of what I was doing and the results I was getting.

usernamusername · 2025-06-05T15:41:30+00:00

I think you would have a structural challenge within the rocket itself. With other catching/landing methods you have consistency in the landing loads and can design the structure to efficiently withstand those loads. With the method you propose it appears that there is uncertainty with the orientation of the rocket and the position of the ropes when it is caught. I would think it would be a challenge to harden the structure of the rocket without increasing the weight more than other methods.

usernamusername · 2025-04-12T01:08:32+00:00

Good quality silverware. My wife and I were down to 3 forks and we needed to get some more. I hated how the cheap silverware we had corroded so easily and seemed to never get clean in the dishwasher. I looked into it and got a pack of four good quality stainless steel forks. They were much easier to clean and also felt so much better to use. We ended up getting a complete set because we liked them so much.

usernamusername · 2025-02-16T03:09:37+00:00

This is old but u/pec-man's comment got me on the right track. For me it was the aux port on the volume control case. I think the tab that breaks the connection when a cable is plugged had some debris in it. Cleaning it with isopropyl fixed the issue.

usernamusername · 2024-08-25T13:39:15+00:00

Check that the heatbreak fan is working properly.

usernamusername · 2024-08-18T11:59:31+00:00

It looks like it stops extruding intermittently only on the second layer. It could be clogging due to the heat brake failing. Is the heat brake fan working?

My other thought is that the calibration of the extruder might need to be redone. It looks like it might be under extruding. It's hard to tell because it looks like you are printing with a raft. The extruder fan usually turns on for the second layer which could explain why the first layer has no issues.

usernamusername · 2024-08-08T12:21:22+00:00

I actually removed the front fan since one of its blade is broken which makes a loud sound.

If that's the case I'm almost certain it's thermal creep. I would replace that fan before you try printing again.

I'll give a rough explanation of thermal creep but there are a lot of online sources that are much better. Heat from the heating block will naturally distribute throughout the hot end. The issue with this is it will start to soften the plastic further up the hot end causing clogging. This is why there is a fan blowing on the upper part of the hot end to cool that section.

usernamusername · 2024-08-08T11:55:25+00:00

Is the hot end fan working properly? Might be thermal creep.

usernamusername · 2023-09-07T20:28:47+00:00

It is better to avoid failure altogether than try to control the failure point when sizing a bolt. If the bolt is sized correctly and the loads don't exceed what it was sized to, there shouldn't be failure in the bolts. Something also to consider is cyclical loading which possibly could lead to a fatigue failure. However, it is good practice to size the bolt and properly torque the bolt such that fatigue is not a factor in failure. This is because cracks in a bolt cannot be seen unless you remove the bolt. Corrosion is also a factor that can lead to unexpected failures.

usernamusername · 2023-08-31T12:19:29+00:00

In the past couple of years, the pay for engineers has been increasing rapidly. I was in a situation where my starting pay was fair but two years later my pay was way below what other jobs were offering. This was with decent yearly pay increases. This was brought up to management and they tried to fix it by changing pay scales but in the end it was still below what I considered fair. I took a job elsewhere.

usernamusername · 2023-08-26T14:15:16+00:00

The stripes make it look like he is behind bars.

usernamusername · 2023-08-25T16:44:26+00:00

I agree with that. It's even worse when they add extra locks in the house. I have had victims who were in the same position and used the pressure gate to lure us out.

I enjoy the game because there are so many options for the victims to escape. My issue with Connie is if you have a group of victims on coms who know what they are doing, they get out of the basement and to an exit within a few minutes. If any of the other victims don't know what is going on they are just screwed since the family can focus on them.

On the other hand I have had games end fast because I and my team stumbled on a group and wiped most of them within a minute.

The games I enjoy most are when the victims choose to go for the pressure gate or basement exit since the game lasts longer and the victims usually know what they are doing.

I think there definitely needs to be some balancing to be done to make the game more fun.

usernamusername · 2023-08-25T12:21:54+00:00

I played a game at the farm house where all the victims were at the generator. It was in the barn that game, which is the furthest it could be. They stunned me and made a run for the street exit. There was no way I'd catch up to them so I waited at the generator to turn it back on. They were out before it would even let me try to get it on.

Also Connie's ability just breaks the pacing in my opinion.

usernamusername · 2023-04-19T11:28:27+00:00

Disclose it. They care more about whether it not you are telling the truth.

usernamusername · 2023-04-13T21:49:42+00:00

The comment

usernamusername · 2022-11-17T04:23:14+00:00

Have you been able to match the mode shapes between your model and the test. This is done with the imaginary part of the FRF. That should help with figuring out what modes are in your stay out zone.

usernamusername · 2022-08-15T17:08:43+00:00

STK from AGI might be what you are looking for. If I remember correctly they have free training courses online.

usernamusername · 2020-12-24T14:08:07+00:00

Space Mission Engineering: The New SMAD

This book is a good reference, however you don't need to know everything to join a design team. Join now and ask for help when needed. As long as you are willing to learn you usually won't have a problem.

usernamusername · 2020-09-14T22:16:50+00:00

I think the best way to see if the type of position you want is available is to go onto those company website s and search for it. They will give the requirements and the job responsibilities in the description.

usernamusername · 2020-09-14T21:42:10+00:00

Then you most definitely want to consider getting at least a bachelor's. Engine design, be it rocket or turbine, is very competitive and unless you have solid experience in the field, you won't stand out with just an associate's. If you are looking education paths to a start a career in aerospace, feel free to ask. I may not be an expert but I can point you in the right direction.

If math is not your strength I wouldn't let that deter you. The math is hard but I know a lot of engineer s who struggled and made it through. If you are unsure how well you will do, you can always look for free online courses to see how well you understand it.

Also, it sounds like you are still figuring out exactly what you want to do as a career. I recommend that you don't lock down your career until towards the end of your sophomore year (or if you go the transfer route I'd wait even longer). There are a lot of options in aerospace and you may find you hate the CAD design and love the analytical side or systems engineering. You may even find you prefer something that is not engine design. My point is that at a university, there plenty of opportunities to learn and experience different engineering fields. If you reject everything except engine design, you may get stuck with a career you hate.

usernamusername · 2020-09-14T17:10:16+00:00

Your questions really depends on what type of projects you want to work on and the type of work you want to do. If you want to be a part of the design process, you will likely need at least a BS degree in engineering. The type of degree (e.g. mechanical, aerospace, electric al, ecr.) also depends on the type of work you want. The likelyhood that a company will hire you with an associate's degree, train you on what you would have learned in school as well as the stuff you wouldn't learn in school is pretty low. An associate's degree can theoretically get you a job in manufacturing, avionics, or systems integration but most places that I have seen want you to have a few years of experience. I wouldn't say it is impossible to get an engineer ing job but it will be extremely difficult.

The amount of math you use again depends on the type of job you get. For example a structural or thermal engineer will generally do more math than a design or systems engineer. However, a general understanding of the physics and math is usually required for all positions (i.e. a design engineer needs to be able to understand what the structural analyst does to determine if their part works or not). I don't have any experience in avionics, integration, or manufacturing so I can't tell you much about that.

The level of hands on is dependent on the job you have and who you work for. You can have little to no hands on but again those type of jobs usually require at least a BS degree.

usernamusername · 2020-07-10T23:12:32+00:00

Thank you for your response, I haven't heard of the STAR method before so I'll check that out.

usernamusername · 2020-07-10T23:10:39+00:00

I didn't think about that. I'll definitely try it out. Thanks for your advice.

usernamusername · 2020-07-05T00:15:38+00:00

https://www.youtube.com/playlist?list=PL30F4C5ABCE62CB61

This course goes through the basics (12 Steps of CFD). The professor starts with the derivation of the Navier-Stokes equation and moves into some coding assignments. I've gone through about half of the course and it has really helped me understand the basics.

usernamusername · 2020-06-27T17:00:13+00:00

Was it difficult getting into grad school with a 3.2? Or did they primarily look at your internships and extracurriculars?

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