Ans 241108 j d determine the total required energy if

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: s: (2.41*108 J) d. Determine the total required energy if only 75% of the total energy goes to launching the plane (the rest is lost in heat and overcoming drag). Ans: (3.21*108 J) e. Given the restriction on available average power from the ship power system, find the minimum time required between catapult shots. Ans: (42.8s) Problem 2: You are given a PM DC motor intended for use in an electric car that uses a 72V battery. You wish to determine the three parameters of the model: , , and . You run the following two tests: Test 1: Apply 72VDC and measure and with no load Test 2: Apply 72VDC and measure and with a load a. Determine , , and . [ra = 0.118Ω, Kv = 0.36Vs, TLoss = 1.51Nm] b. Determine the efficiency of the motor for the conditions of Test 2. [83.8%] c. If we set and rotor speed (Assume that [Ia = 25A, ω = 130.7r...
View Full Document

Ask a homework question - tutors are online