Using project management apps to make organizing all of the above easier.Keeping a clear, up-to-date calendar to keep track of your work and personal schedules.Knowing when you’re most productive and planning your day accordingly.Creating specific and measurable goals that motivate you to improve.Writing to-do lists for short- and long-term plans.In this post, then, we’ll cover five tips for scheduling and planning as a freelance proofreader. But it can be easy to lose direction when you have so much flexibility. b) Which, if any, of the constraints are binding? If the pickup's dimensions are increased to a length of 2.5 m and a width of 1.One of the many perks of freelancing is the freedom to choose your own work hours and routine. L + 2 t ≤ L m a x D + 2 t ≤ D m a x a) Find the optimal solution for D, L, and C. The remaining constraints deal with ensuring that the tank will fit within the dimensions of the truck bed. This value must equal the desired volume, thus one constraint is 4 π D 2 L = V 0 where V 0 is the desired volume. First, the volume of the tank must be computed: V = 4 π D 2 L Also note that when the formulas for w and m are substituted into the cost function, the cost function is nonlinear in the decision variables. The total weld length for both end plates combined is w = 2 Given values for D and L (recall that t is specified by regulations), the cost can be computed. The weld length for attaching each plate is equal to the cylinder's inside and outside circumference. For each circular end plate, the volume is V place = π ( 2 D + t ) 2 t The mass of material is the density times the total volume. the cylinder) is V phiniter = L π where L is the length of the tank (m) and D is the diameter of the tank (m). The volume of the material used to create the side walls (i.c. The mass can be calculated as the volume of the material times its density. The mass and weld length are related to the dimensions of the tank. The total cost, which is also the objective function, is C = c m m + c w w where C = cost ( $ ), m = mass ( kg ), w = weld length ( m ), and c m and c w = cost factors for mass ( $/ kg ) and for weld length ( $/ m ).
The data needed for the problem are summarized in the following table. Note that the latter involves welding both the interior and the exterior seams where the plates connect with the cylinder. The cost of the tank involves two components: (1) material expense, which is based on weight, and (2) welding expense, based on the length of the weld. As can be seen, the tank consists of a cylinder with two end plates welded on each end. A schematic of the tank and bed are shown in the figure below. Note that because the truck is carrying toxic waste, the tank thickness is specified by regulations. However, aside from cost, you must ensure that it holds the required amount of liquid and that it does not exceed the dimensions of the truck's bed. Your overall objective is to minimize the cost of the tank. Suppose that you are asked to determine the dimensions of a small cylindrical tank to transport toxic waste that is to be mounted on the back of a pickup truck. Tank (Chapra 16.1) Engineers often encounter the general problem of designing containers to transport liquids and gases. The deliverables should satisfy the following requirements: The deliverables include one excel file with multiple worksheets. Completion and Submission Instructions: This assignment includes completion of the following tasks in MS Excel.
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