Analysis and discussion of diesel engine powertrain torsional resonance during start-up

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

A phenomenon exists in diesel or compression ignition engine powertrains with torsionally flexible couplings where the powertrain sometimes cannot accelerate through a torsional resonance such as during engine start-up. This phenomenon is sometimes referred to as resonance stall, resonance hang-up, or a jackhammer start. The current theory is that the hysteretic damping of an elastomeric coupling is dissipating input energy from the engine, thereby prohibiting the system from accelerating through the resonance. This theory comes about because the elastomeric coupling, with its hysteretic damping, heats up during resonance and is obviously dissipating energy. By conducting a theoretical study of the energy balances of vibration for a powertrain model and by carefully considering field observations, this paper will show that energy dissipated by the torsionally flexible coupling does not come at the expense of the mean or working torque that was input by the engine. Therefore, this energy dissipation is not the root cause of resonance stall. Further, by considering the overall powertrain response to resonance, this paper presents a new theory for the cause of resonance stall.

Original languageEnglish (US)
DOIs
StatePublished - Dec 1 2003
EventNoise and Vibration Conference and Exhibition - Traverse City, MI, United States
Duration: May 5 2003May 8 2003

Other

OtherNoise and Vibration Conference and Exhibition
CountryUnited States
CityTraverse City, MI
Period5/5/035/8/03

Fingerprint

Powertrains
Diesel engines
Flexible couplings
Engines
Damping
Energy balance
Ignition
Energy dissipation
Torque

All Science Journal Classification (ASJC) codes

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

Cite this

Sweeney, S. (2003). Analysis and discussion of diesel engine powertrain torsional resonance during start-up. Paper presented at Noise and Vibration Conference and Exhibition, Traverse City, MI, United States. https://doi.org/10.4271/2003-01-1721
Sweeney, Shannon. / Analysis and discussion of diesel engine powertrain torsional resonance during start-up. Paper presented at Noise and Vibration Conference and Exhibition, Traverse City, MI, United States.
@conference{fea3f77a48554957b3cf6638e7c1b49a,
title = "Analysis and discussion of diesel engine powertrain torsional resonance during start-up",
abstract = "A phenomenon exists in diesel or compression ignition engine powertrains with torsionally flexible couplings where the powertrain sometimes cannot accelerate through a torsional resonance such as during engine start-up. This phenomenon is sometimes referred to as resonance stall, resonance hang-up, or a jackhammer start. The current theory is that the hysteretic damping of an elastomeric coupling is dissipating input energy from the engine, thereby prohibiting the system from accelerating through the resonance. This theory comes about because the elastomeric coupling, with its hysteretic damping, heats up during resonance and is obviously dissipating energy. By conducting a theoretical study of the energy balances of vibration for a powertrain model and by carefully considering field observations, this paper will show that energy dissipated by the torsionally flexible coupling does not come at the expense of the mean or working torque that was input by the engine. Therefore, this energy dissipation is not the root cause of resonance stall. Further, by considering the overall powertrain response to resonance, this paper presents a new theory for the cause of resonance stall.",
author = "Shannon Sweeney",
year = "2003",
month = "12",
day = "1",
doi = "10.4271/2003-01-1721",
language = "English (US)",
note = "Noise and Vibration Conference and Exhibition ; Conference date: 05-05-2003 Through 08-05-2003",

}

Sweeney, S 2003, 'Analysis and discussion of diesel engine powertrain torsional resonance during start-up', Paper presented at Noise and Vibration Conference and Exhibition, Traverse City, MI, United States, 5/5/03 - 5/8/03. https://doi.org/10.4271/2003-01-1721

Analysis and discussion of diesel engine powertrain torsional resonance during start-up. / Sweeney, Shannon.

2003. Paper presented at Noise and Vibration Conference and Exhibition, Traverse City, MI, United States.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Analysis and discussion of diesel engine powertrain torsional resonance during start-up

AU - Sweeney, Shannon

PY - 2003/12/1

Y1 - 2003/12/1

N2 - A phenomenon exists in diesel or compression ignition engine powertrains with torsionally flexible couplings where the powertrain sometimes cannot accelerate through a torsional resonance such as during engine start-up. This phenomenon is sometimes referred to as resonance stall, resonance hang-up, or a jackhammer start. The current theory is that the hysteretic damping of an elastomeric coupling is dissipating input energy from the engine, thereby prohibiting the system from accelerating through the resonance. This theory comes about because the elastomeric coupling, with its hysteretic damping, heats up during resonance and is obviously dissipating energy. By conducting a theoretical study of the energy balances of vibration for a powertrain model and by carefully considering field observations, this paper will show that energy dissipated by the torsionally flexible coupling does not come at the expense of the mean or working torque that was input by the engine. Therefore, this energy dissipation is not the root cause of resonance stall. Further, by considering the overall powertrain response to resonance, this paper presents a new theory for the cause of resonance stall.

AB - A phenomenon exists in diesel or compression ignition engine powertrains with torsionally flexible couplings where the powertrain sometimes cannot accelerate through a torsional resonance such as during engine start-up. This phenomenon is sometimes referred to as resonance stall, resonance hang-up, or a jackhammer start. The current theory is that the hysteretic damping of an elastomeric coupling is dissipating input energy from the engine, thereby prohibiting the system from accelerating through the resonance. This theory comes about because the elastomeric coupling, with its hysteretic damping, heats up during resonance and is obviously dissipating energy. By conducting a theoretical study of the energy balances of vibration for a powertrain model and by carefully considering field observations, this paper will show that energy dissipated by the torsionally flexible coupling does not come at the expense of the mean or working torque that was input by the engine. Therefore, this energy dissipation is not the root cause of resonance stall. Further, by considering the overall powertrain response to resonance, this paper presents a new theory for the cause of resonance stall.

UR - http://www.scopus.com/inward/record.url?scp=84877386409&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84877386409&partnerID=8YFLogxK

U2 - 10.4271/2003-01-1721

DO - 10.4271/2003-01-1721

M3 - Paper

ER -

Sweeney S. Analysis and discussion of diesel engine powertrain torsional resonance during start-up. 2003. Paper presented at Noise and Vibration Conference and Exhibition, Traverse City, MI, United States. https://doi.org/10.4271/2003-01-1721