This paper establishes geometric models and finite element models of a car engine exhaust manifold cover,carries out modal analysis,verifies the correctness of the finite element model,analyzes the harmonic response of the manifold cover,determines that the free edges of the manifold cover affects the noise radiation most,and provides the corresponding measures of improvement.
建立了汽车发动机排气歧管罩的几何模型和有限元模型,然后进行模态分析,并通过实验验证了有限元模型的正确性。
The exhaust manifold cover is the main source of surface radiate noise of a 6 360 vehicle s engine.
排气歧管罩是某6360汽车发动机的主要表面噪声辐射源,利用有限元分析技术建立了其有限元模型并进行解析模态分析,分析结果与实验基本一致。
hood having a maxium horizontal side not exceeding 120cm
最大水平面不超过120cm 的排气罩
recycling hood with maximum horizontal side not exceedin 120cm
循环排气罩,最大水平面不超过120cm
industrial hood incorporating a fan with maximum horizontal side not exceeding 120cm
工业用排气罩,装有风扇,最大水平面不超过120cm
laboratory hood incorporating fan with maximum horionatal side not exceeding 120cm
实验室用排气罩,装有风扇,最大水平面不超过120cm
recycling hood incorporating a fan with mazimum horizontal side exceeding 120cm
循环排气罩,带有风扇,最大水平面不超过120cm
Remove exhaust manifold heat shiel
拆下排气歧管隔热罩。
Install exhaust down pipe heat shiel
安装排气下行管隔热罩。
Install exhaust heat shield, tighten bolts to 11 N·m.
安装排气隔热罩，拧紧螺栓到11 N·m。
Remove exhaust heat shield from down pipe.
从下行管拆卸排气隔热罩。
The basic exhaust system consists of an engine exhaust manifold, exhaust pipe, exhaust heat shield(s), muffler and exhaust tailpipe
基本排气系统包括一个引擎排气歧管、排气管道、排气隔热罩、消音器和排气尾管
The laboratory exhaust system includes exhaust duct works, exhaust fan, laboratory fume hood exhaust, laboratory canopy hood and cabinets needed venting.
实验室排气系统包括排气管路、气风机、验室通风柜管道、验室排风罩和特殊存储柜的排气管道。
Numerical Simulation and Experimental Research of the Rotary Air Curtain Exhaust Hood
旋转气幕式排风罩数值模拟及实验研究
Application of Semi-opening Flue Gas Control System in the 15 Ton Electric Furnace
半密闭排烟罩在15t电炉烟气捕集上的应用
STUDY ON NUMERICAL SIMULATION OF A NEW TYPE OF ROTARY AIR CURTAIN EXHAUST HOOD
一种新型旋风气幕式排风罩数值模拟研究
A metal cover or cowl for a hearth or stove.
排风罩用于炉床或炉子的金属盖或罩
"Provide for smoke hoods and flues above cooking ranges to enable the removal of fuel and cooking gases, smoke and fumes from the centre into the open air."
在烹调区有排烟罩和烟道,能保证燃料以及烹调产生的烟、气体等的排出。
This device helps vent gas that boils off from the liquid oxygen tank, and also bathes the top of the tank in warmed nitrogen to prevent ice from forming.
这个装置有助于排除液氧燃料箱蒸发的气体，并且它还可以用加温氮气笼罩箱顶，以防结冰。
misty mountains in the distance
远方雾气笼罩的群山