http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111753410-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02T90-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F30-17 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F30-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F30-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F30-17 |
| filingDate | 2020-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111753410-B |
| titleOfInvention | Parameter optimization method for engine torsional damper |
| abstract | The invention discloses a parameter optimization method of an engine torsional vibration damper, which comprises the following steps: establishing a crankshaft multi-degree-of-freedom torsion model, calculating a first-order torsional vibration modal shape and a first-order natural frequency of a crankshaft system, determining the modal inertia of the crankshaft system at the position with the maximum degree of freedom of amplitude, calculating the rotational inertia, the natural frequency and the damping coefficient of the torsional vibration damper, calculating the optimal solution of the natural frequency adjustment factor beta of the torsional vibration damper, and calculating the adjusted natural frequency omega of the torsional vibration damper opt And a stiffness K opt With K opt As the rigidity parameter for designing the torsional vibration damper, the first-order resonance at the Hub end of the crankshaft is weak and the second-order resonance is strong after the crankshaft is coupled with the TVD, so that the overhall angular acceleration curve at the Hub end of the crankshaft is approximately linearly increased along with the rotating speed, the reasonable matching of the TVD and a crankshaft system is better realized, and the rigidity parameter can be improvedNVH performance of the engine. |
| priorityDate | 2020-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID11178 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID454006091 |
Total number of triples: 15.