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In spark-ignition internal combustion engines, knocking (also knock, detonation, spark knock, pinging or pinking) occurs when combustion of some of the air/fuel mixture in the cylinder does not result from propagation of the flame front ignited by the spark plug, but when one or more pockets of air/fuel mixture explode outside the envelope of the normal combustion front.
Noise, vibration, and harshness (NVH), also known as noise and vibration (N&V), is the study and modification of the noise and vibration characteristics of vehicles, particularly cars and trucks. While noise and vibration can be readily measured, harshness is a subjective quality, and is measured either via jury evaluations, or with analytical ...
Soundaktor is a vehicle audio system used to simulate engine noise in the cabin of some Volkswagen automobiles. It consists of a speaker mounted on the firewall between the engine and the cabin, which adds noise to the cabin in order to replicate the driving experience of older vehicles that had lower levels of sound insulation.
At the time of his initial arrest, Henderson told officials that Kybrel fell off the couch and onto the floor after he spun him in circles and placed him on the furniture, WPXI and WTAE reported.
The torsional deflection of a simple cylinder cannot radiate efficiently acoustic noise, but with particular boundary conditions the stator can radiate acoustic noise under torque ripple excitation. [8] Structure-borne noise can also be generated by torque ripple when rotor shaft line vibrations propagate to the frame [9] and shaft line.
If you've been having trouble with any of the connections or words in Monday's puzzle, you're not alone and these hints should definitely help you out. Plus, I'll reveal the answers further down ...
WASHINGTON (Reuters) -The U.S. Transportation Department imposed a $2 million penalty on JetBlue Airways for operating four chronically delayed flights on domestic routes - the first time it has ...
The recall concerns a steering problem caused by the misalignment of the inner and outer rings of the crankshaft pulley, which could cause noise or the Check Engine light to illuminate; if this problem is not corrected, the power steering belt can fall off the pulley, which can cause a sudden loss of power assist.