Simply put. This subject is tough. For most of you doing this as a core (perhaps not the Mechanical Majors), this will likely be the hardest subject in your undergrad, and is also coincidentally a pre-req for most of your third year subjects. Generally speaking, around 1/3 people will end up having to redo this subject. Many of the people in my class were those who had failed in Sem 2 2015, so as Hancock said in his review which I'd recommend checking out
(Hancock's Review), its not a class to screw around in, and definitely not one you should consider winging. Please dont. One consolation that you can take from Hancock's review is that the subject has been made a fair bit easier since his time, with parts of certain topics like Vibrations in Dynamics, and Eccentric Loading in Statics becoming much more simplified.
One thing I will add though is that unlike some other subjects, Eng Mech is possibly the fairest subjects Ive done so far. What I mean by that is the mark you get at the end will be a direct representation of the effort and time you put in throughout the entire semester, unlike some others where you can get away with being a tad lazy, or where you can put in tonnes of work and still end up with a meh score (ahem, looking at you Calc 2). Due to the frantic pace at which it is taught, falling behind in this class is not something that Id advise in the slightest, or SWOTVAC will be a nightmare.
The subject is split into two topics; Statics, and Dynamics. Both of which are 6 weeks long. Statics effectively starts off where the Mechanics module in ESD2 left off, with methods of joints and the like with trusses.
The new content in Statics begins with:
-Method of sections: a different way of analyzing reaction forces in trusses
-Shear Force Diagrams (SFD) and Bending Moment Diagrams (BMD) for differently loaded beams
-Stress, Strain, Poissons, Hookes Law
-Shear Stress, Shear Strain,
.
-Axial Loading, Superposition
-Thermal Stress
-Torsion
-Power
-Flexure
-Bending
-Eccentric Loading
-& finally, Deflection
As you can see, tonnes to learn, and this is only in the first 6 weeks. The content itself though is not too difficult to learn so long as you keep up to date with the lectures, though it does get slightly harder from around Torsion onwards. But I cannot stress this enough. Keep doing questions from whatever resource you can find. Every week, you are given a set of around 15-20 Tutorial questions (dont even ask, made no sense to me either) that you can attempt at home for Statics on top of the Workshop questions. Though a few of the questions are beyond the course expectations, at least attempt every single one, and ones you cant do or dont understand, ask one of your tutors the next week. I reckon I bugged my tutor with at least 3-4 questions I was struggling with each workshop. You prepare yourself by doing these questions, you should not have any major issues with anything you do in the subject.
The Dynamics portion builds upon VCE Year 12 Physics for those of you who did it, and Physics 1. Much of the content is stuff that you would have covered in some capacity before, but likely not to a significant difficulty. Eng Mech covers all of it in much more detail, and something I really liked compared to the Statics section is that often you had to first think and figure out how the system you were given was going to work, before you started any calculations, whereas in Statics at times things got a tad monotonous with just plugging values into equations. The topics covered were:
-Kinematics
-Relative Motion (Polar, Rectangular, N-T Co-ordinate Systems)
-Particle Kinetics
-Work
-Impulse & Momentum Angular Impulse & Momentum
-Impact
-Forced Vibrations
-Rigid Body Motion, Absolute Motion analysis, Relative Velocity
-Instantaneous Centres, Relative Acceleration
-General Planar Motion
Whilst there arent as many topics covered in Dynamics, the content is much harder to understand, and I think for most people, its the inability to visualise what is going on. Often youre left sitting there looking at the question thinking where do I even start. Rigid Body Motion onwards in particular can be horribly annoying to try and do at times. Again unfortunately I have to say the only way to get better at it is to do tonnes and tonnes of questions.
Whilst some other people I know who did Eng Mech had issues with the lectures, I really liked them. Lectures were very well organised and thought out. Though perhaps sometimes there was too much content crammed into a single hour. One massive thing I loved about the Eng Mech lectures is the way they are split up. In a normal semester, the first two lectures in the week would be intro lectures where you are taught the concepts, and the theory, whilst the third lecture is doing examples on the concepts taught in the two previous lectures. Though for me doing it over Summer meant it was two weeks crammed into one, and often 3 lectures in a single day, the method of introduction, followed by application and consolidation in that third lecture is something Im a big fan of, and wish more Engineering subjects adopted this approach, rather than just droan on and on with theory. Also side note, dont bother with the Tutorial 13 questions. Just a waste of time. Stuff is ridiculously hard, and there is no way any of it is going to come up in any assessment.
The workshops too were something that I absolutely loved, with again in particular the way they are set up being one of the best parts. Workshops are officially run across 2 hours, but the minimum recommended time you stay for is the first hour unless there is some experiment work to do for one of the assignments planned for the second half. Workshops usually start off with the head tutor doing a quick run down of the content covered in the lectures for the week again, followed by two generally fairly difficult questions which are explained fairly thoroughly and worked through by the two tutors. All this gets done in the first hour beyond which you are free to leave, or stay behind and get some help from the tutors regarding the questions done in class, or other questions you may have. I strongly, strongly recommend staying back and asking the tutors questions. It is extremely rare that tutors are this approachable, or more so this free to help with any queries, so make full use of them. I reckon I kinda got lucky and had two fairly awesome tutors who knew the content really really well, but especially the revered Engineering God Hancock who more than anything for a subject as tough as Eng Mech was able to basically dumb down and explain the concepts from the point of view of a student. Often explaining the concepts better than the lecturer himself. Though a few other peoples experiences varied, the vast majority of people I talked to always reckon the Eng Mech tutors as a whole are generally some of the best you will have in your course. I can honestly say that a massive reason to me doing half decent in this subject was due to the help Hancock gave me every single Workshop. (Hancock, if youre reading this, sorry if I bugged you too much).
TL;DR. I absolutely loved the subject. It is by far the hardest Ive done so far, but the quality of the lecturer, and tutors, as well as the organization of the subject as a whole meant that it was a subject that you actually enjoyed doing the work (at least in hindsight). Just ensure you keep up to date not only rocking up to lectures, but especially doing questions consistently, and ensure youre on top of everything during semester when you still have the time so that come SWOTVAC, all you need is a quick refresher and youre good to go for the exam.
Also, on a final note. What Ive heard from those repeating the subject over Summer is that Semester 2 is kinda suicidal with Daniel Chung being head of the subject. Having done some of his past exams for revision, its hard not to agree. His exams dont even nearly compare to Semester 1 or 2. If youre willing to give up 2 months of your summer break, do it over summer. Else Id say do it in Sem 1 if you can. The standard in Summer or Semester 1 is more than enough for your third year subjects where you expand on many of the concepts learnt in Eng Mech, and it's not worth the likely WAM drop.