In this model, under the given assumptions, after adding some assumptions needed for modeling, the following modeling can be carried out:
(1) When the parachute radius r and load m are known, the differential equation is established by using the mechanism of motion mechanics (Newton's second law) to determine the relationship between r and m when the landing speed is met. This step contains a sub-problem, that is, the determination of resistance coefficient. When we determine R and M, we can use the data in the table to fit and solve the equation of motion according to the function type.
(2) Calculation of airdrop cost:
(a) Calculate the maximum value m of each R value to meet the landing speed requirements (this is used to estimate the number n of parachutes required for airdropping all materials).
(b) Calculate the cost c[ determined by (C3 C2 c 1)] and n*c for each r value.
After the model is obtained, error analysis, testing, advantages and disadvantages are carried out. ...
You give too little reward, stop it ~ ~