Minimum Design Index Calculator

✖Cost Index is the summation of all the contributors in cost configuration parameters. The cost configuration parameters are valued on the scale of 0-10 (best=10 and worst=0).ⓘ Cost Index [CI]			+10% -10%
✖Cost Priority (%) is a factor which shows the priority of cost objective on a percentage scale. It is oriented according to the user's definition of priorities.ⓘ Cost Priority (%) [P_c]			+10% -10%
✖Weight Index is the summation of all the contributors in weight configuration parameters. The weight configuration parameters are valued on the scale of 0-10 (best=10 and worst=0).ⓘ Weight Index [WI]			+10% -10%
✖Weight Priority (%) is a factor which shows the priority of Weight factor on a percentage scale. It is oriented according to the user's definition of priorities.ⓘ Weight Priority (%) [P_w]			+10% -10%
✖Period Index is the summation of all the contributors in period configuration parameters. The Period configuration parameters are valued on the scale of 0-10 (best=10 and worst=0).ⓘ Period Index [TI]			+10% -10%
✖Period Priority (%) is a factor which shows the priority of time factor on a percentage scale. It is oriented according to the user's definition of priorities.ⓘ Period Priority (%) [P_t]			+10% -10%

✖Minimum Design Index is a comparable quantity in conceptual design phase which considers Cost, Weight and Time period indices.ⓘ Minimum Design Index [DI_min]

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Minimum Design Index Solution

STEP 0: Pre-Calculation Summary

Formula Used

Minimum Design Index = ((Cost Index*Cost Priority (%))+(Weight Index*Weight Priority (%))+(Period Index*Period Priority (%)))/100
DI_min = ((CI*P_c)+(WI*P_w)+(TI*P_t))/100
This formula uses 7 Variables

Variables Used

Minimum Design Index - Minimum Design Index is a comparable quantity in conceptual design phase which considers Cost, Weight and Time period indices.
Cost Index - Cost Index is the summation of all the contributors in cost configuration parameters. The cost configuration parameters are valued on the scale of 0-10 (best=10 and worst=0).
Cost Priority (%) - Cost Priority (%) is a factor which shows the priority of cost objective on a percentage scale. It is oriented according to the user's definition of priorities.
Weight Index - Weight Index is the summation of all the contributors in weight configuration parameters. The weight configuration parameters are valued on the scale of 0-10 (best=10 and worst=0).
Weight Priority (%) - Weight Priority (%) is a factor which shows the priority of Weight factor on a percentage scale. It is oriented according to the user's definition of priorities.
Period Index - Period Index is the summation of all the contributors in period configuration parameters. The Period configuration parameters are valued on the scale of 0-10 (best=10 and worst=0).
Period Priority (%) - Period Priority (%) is a factor which shows the priority of time factor on a percentage scale. It is oriented according to the user's definition of priorities.

STEP 1: Convert Input(s) to Base Unit

Cost Index: 1327.913 --> No Conversion Required
Cost Priority (%): 10.11 --> No Conversion Required
Weight Index: 50.98 --> No Conversion Required
Weight Priority (%): 15.1 --> No Conversion Required
Period Index: 95 --> No Conversion Required
Period Priority (%): 19 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

DI_min = ((CI*P_c)+(WI*P_w)+(TI*P_t))/100 --> ((1327.913*10.11)+(50.98*15.1)+(95*19))/100

Evaluating ... ...

DI_min = 159.9999843

STEP 3: Convert Result to Output's Unit

159.9999843 --> No Conversion Required

FINAL ANSWER

159.9999843 ≈ 160 <-- Minimum Design Index

(Calculation completed in 00.004 seconds)

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< Design Process Calculators

Period of Design Index given Minimum Design Index

LaTeX Go Period Index = ((Minimum Design Index*100)-(Weight Index*Weight Priority (%))-(Cost Index*Cost Priority (%)))/Period Priority (%)

Weight Index given Minimum Design Index

LaTeX Go Weight Index = ((Minimum Design Index*100)-(Cost Index*Cost Priority (%))-(Period Index*Period Priority (%)))/Weight Priority (%)

Cost Index given Minimum Design Index

LaTeX Go Cost Index = ((Minimum Design Index*100)-(Weight Index*Weight Priority (%))-(Period Index*Period Priority (%)))/Cost Priority (%)

Minimum Design Index

LaTeX Go Minimum Design Index = ((Cost Index*Cost Priority (%))+(Weight Index*Weight Priority (%))+(Period Index*Period Priority (%)))/100

Minimum Design Index Formula

LaTeX Go

Minimum Design Index = ((Cost Index*Cost Priority (%))+(Weight Index*Weight Priority (%))+(Period Index*Period Priority (%)))/100
DI_min = ((CI*P_c)+(WI*P_w)+(TI*P_t))/100

What is Conceptual Design of Aircraft ?

While doing the Conceptual Design phase a designer makes a lots of conceptual models and compare them to select the best conceptual design. For this he compares the model on the basis of various objective like Cost of Aircraft, Weight Of Aircraft, Design Time Period for making that model, Performance Factor, Maintainability Factor, Producibility Factor, Beauty (or Aesthetics) Factor, etc.

What is the concept of Minimum Design Index?

The Designer defines Objective index which depends upon the parameters which influence the respective objective. Sum of all of the parameters contributing the objective factor on scale of 1-10 gives objective index. Now this objective index has its own priorities, in a conceptual design model the priorities are shown in percentage.
Now how these factor influence the model is given by the product of the objective index and its priority (taken as a number (conversion from percentage)), it is the share of design index. And if the share of design index is subjected to the Cost, Weight and Design Time only, It is called Minimum Design Index.
As they are common factors in all type of Aircrafts.

How to Calculate Minimum Design Index?

Minimum Design Index calculator uses Minimum Design Index = ((Cost Index*Cost Priority (%))+(Weight Index*Weight Priority (%))+(Period Index*Period Priority (%)))/100 to calculate the Minimum Design Index, The Minimum Design Index is defined as the lowest achievable value for the design index of an aircraft. It reflects the most efficient configuration, systems, and operational procedures that minimize operating costs while meeting regulatory and performance requirements. Minimum Design Index is denoted by DI_min symbol.

How to calculate Minimum Design Index using this online calculator? To use this online calculator for Minimum Design Index, enter Cost Index (CI), Cost Priority (%) (P_c), Weight Index (WI), Weight Priority (%) (P_w), Period Index (TI) & Period Priority (%) (P_t) and hit the calculate button. Here is how the Minimum Design Index calculation can be explained with given input values -> 31.30848 = ((1327.913*10.11)+(50.98*15.1)+(95*19))/100.

FAQ

What is Minimum Design Index?

The Minimum Design Index is defined as the lowest achievable value for the design index of an aircraft. It reflects the most efficient configuration, systems, and operational procedures that minimize operating costs while meeting regulatory and performance requirements and is represented as DI_min = ((CI*P_c)+(WI*P_w)+(TI*P_t))/100 or Minimum Design Index = ((Cost Index*Cost Priority (%))+(Weight Index*Weight Priority (%))+(Period Index*Period Priority (%)))/100. Cost Index is the summation of all the contributors in cost configuration parameters. The cost configuration parameters are valued on the scale of 0-10 (best=10 and worst=0), Cost Priority (%) is a factor which shows the priority of cost objective on a percentage scale. It is oriented according to the user's definition of priorities, Weight Index is the summation of all the contributors in weight configuration parameters. The weight configuration parameters are valued on the scale of 0-10 (best=10 and worst=0), Weight Priority (%) is a factor which shows the priority of Weight factor on a percentage scale. It is oriented according to the user's definition of priorities, Period Index is the summation of all the contributors in period configuration parameters. The Period configuration parameters are valued on the scale of 0-10 (best=10 and worst=0) & Period Priority (%) is a factor which shows the priority of time factor on a percentage scale. It is oriented according to the user's definition of priorities.

How to calculate Minimum Design Index?

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