Question

please calculate the following in details

A quarry truck has a loaded mass of 150 t and is powered by a hydraulic circuit (conceptually, a diesel motor connected to a hydraulic pump are connected to a motor in each wheel hub. Each motor has volumetric and mechanical efficiencies of 0.9 and 0.92, respectively, and the pump has volumetric and mechanical efficiencies of 0.93 and 0.96, respectively. The truck has 2.5 m diameter tyres and 4 motor wheels, with the load on each wheel approximately constant. The truck, by design, can drive fully loaded on a slope of 30 degrees at 30 km/h Calculate: The net useful power of the truck (required power at wheels); The torque in each wheel; The flow of oil for each motor at 30 km/h on a 30 degrees slope assuming a circuit pressure of 400 bar; The net power of the Diesel engine;

Answer 1

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Los 150 xi0 2 9-91x 25 |Answer 6131. 25 kw 2 wheel Torgua in each Pawer is gioing to coheels S0% Pawes egui'red to diue ane wheel falur This Cl 613(-23 2 4 1832.125 kw Tornee applied by uhet; Speed of vehicli GoP T 2 2 TON Vュ 6ox t532.9125x10 2メ× 200 T2 A og TN 2 TIx &SK TeaRg. Id1St5 KNm 7 Ans aer

Power of each mote is given y Pmz P m 2 efficieney effitieney &m 51- Q g28 kw 50 f0wer a Rach at ahere pz assra in liua Dischesrge of wmotor fm 2 (461.2228 X(03 PX 4-00 x (0 0.04628 m3 Answer 46.2306 L

Met po erer ot te Diesel emgina Pm Pret 2 No.of (46)-2a28 4X 2 0.93X0.96 Pnet 4 94009 kw Anscser 4)