Analytical Formula and Boundary Conditions: Assignment 5.1 End Plate & Side Strip Calculation
Analytical Formula and Boundary Conditions: Assignment 5.1 End Plate & Side Strip Calculation
Analytical Formula and Boundary Conditions: Assignment 5.1 End Plate & Side Strip Calculation
1
End plate & side strip calculation
For the below battery pack, End plates and Side strips are required to be designed. Material selected
for this purpose is Aluminum 6061 T6.
Rectangular plate.
Boundary condition: Three edges fixed; one edge free
Answer (a):
ABS has been marked best for base plate but for end Young’s Modulus 68900 Mpa
plates higher strength is required.
Also, there is no need for the material to be insulator. Poisson’s Ration 0.3
Thus, aluminum is chosen here to provide higher rigidity
as compared to ABS. Yield strength 290Mpa
Thickness of end plate comes out to be 1.2 mm which gives a maximum tensile stress of 270.4MPa.
Answer (b):
Stress Calculation
𝐹
σ=
𝐴
1599.29 1599.29
σ= = = 228.47Mpa
b∗t 7
Valid Answer:
(a) 2 Hz
(b) 4 Hz
(c) 5 Hz
(d) 16Hz
Answer:
Thus, K = K1 +K2 + K3 + K4
K = 15 +15 + 30 + 30 = 90 kN/m
𝑘 90 ∗ 1000 𝑟𝑎𝑑
𝜔𝑛 = √ = √ = 31.6
𝑚 90 𝑠
31.6
𝑓= = 𝟓𝑯𝒛
2𝜋
(a) 23.58m/s2
(b) -14.72m/s2
(c) -23.58m/s2
(d) 25.48m/s2
Answer:
Given,
m = 10Kg
k = 49000N/m
Ao = 3g = 3*9.81 m/s2
t = 33s
𝑘 49000
Thus, 𝜔𝑛 = √ =√ = 70 rad/sec
𝑚 10
A(t) = Ao Sin 𝜔𝑛 t
A MOSFET + Heat Sink arrangement with below Specifications is arranged as shown. Find the
MOSFET Junction Temperature (in °C) using Thermal Network Approach
Answer:
This can be automated in Excel for DOE & parameters in Green can be varied to make initial
estimations of what Thermal Management method will be sufficient.
Cell Specifications:
Voltage: 3.65V
Capacity: 15Ah
Internal Resistance: 10mΩ
Answer: