JP3478275B2 - Gear noise measurement method - Google Patents
Gear noise measurement methodInfo
- Publication number
- JP3478275B2 JP3478275B2 JP2001054076A JP2001054076A JP3478275B2 JP 3478275 B2 JP3478275 B2 JP 3478275B2 JP 2001054076 A JP2001054076 A JP 2001054076A JP 2001054076 A JP2001054076 A JP 2001054076A JP 3478275 B2 JP3478275 B2 JP 3478275B2
- Authority
- JP
- Japan
- Prior art keywords
- gear
- noise
- signal
- sound pressure
- gear noise
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ギヤノイズ計測方
法に係わり、特に、歯車伝動装置において発生するギヤ
ノイズへの影響要因を識別可能とするギヤノイズ計測方
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gear noise measuring method, and more particularly, to a gear noise measuring method capable of identifying a factor affecting gear noise generated in a gear transmission.
【０００２】[0002]
【従来の技術】従来から歯車伝動装置において発生する
ギヤノイズ（本明細書において、歯車伝動装置から発生
し、体感されるノイズをギヤノイズという）の計測方法
として、音圧測定方法がある。この音圧測定方法は、検
出手段に音圧計を用い、ギヤノイズの周波数対音圧レベ
ルの関係を測定し、測定した音圧レベル結果に基づい
て、歯車の回転数と周波数の相関から歯車の良否を判定
するものである。2. Description of the Related Art Conventionally, there is a sound pressure measuring method as a method for measuring gear noise generated in a gear transmission (in this specification, noise generated by the gear transmission and felt by the user is referred to as gear noise). This sound pressure measurement method uses a sound pressure meter as a detection means, measures the relationship between the frequency of the gear noise and the sound pressure level, and based on the measured sound pressure level result, the quality of the gear is determined from the correlation between the rotation speed and the frequency of the gear. Is determined.
【０００３】ところで、前記の測定方法では、環境によ
って同時に周囲騒音を検出した場合には、誤った騒音を
も含んだ不正確な測定となり、誤った判定の恐れがあっ
た。また、この方法は、ギヤノイズの音圧のみを対象と
する測定であったため、ギヤノイズ中で周波数域やノイ
ズレベル上問題となるような（低減対策を必要とする）
ノイズ成分がどのような要因の影響を強く受けているの
か識別できなかった。こうしたことから、ギヤノイズ測
定の正確を期し、歯車の噛合い誤差の影響を強く受ける
ノイズ成分と、噛合い誤差以外の影響を強く受けるノイ
ズ成分とを分別して、それぞれの場合に応じた騒音対策
を行なう必要から、種々のギヤノイズ測定方法の研究が
なされてきた。By the way, in the above-mentioned measuring method, when ambient noise is detected at the same time depending on the environment, the measurement becomes inaccurate including erroneous noise, and there is a risk of erroneous determination. In addition, this method is a measurement that targets only the sound pressure of gear noise, so there is a problem in the frequency range and noise level in gear noise (reduction measures are required).
It was not possible to identify what factor the noise component was strongly influenced by. For this reason, in order to ensure accurate gear noise measurement, noise components that are strongly affected by gear meshing errors and noise components that are strongly affected by factors other than meshing errors are separated, and appropriate noise countermeasures are taken in each case. Because of the need to do so, various gear noise measurement methods have been studied.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
音圧測定方法では、測定結果のギヤノイズから特定のノ
イズ成分への影響要因を的確に把握をすることは難し
く、ギヤノイズの低減に適切な方策が採れない不都合が
あった。そこで、ギヤノイズ中から歯車の伝達誤差以外
の影響を強く受けるノイズを俊別できる測定方法の開発
が望まれていた。However, in the conventional sound pressure measuring method, it is difficult to accurately grasp the influence factor from the measurement result gear noise to the specific noise component, and an appropriate measure for reducing the gear noise is required. There was an inconvenience that could not be taken. Therefore, it has been desired to develop a measuring method capable of distinguishing noise that is strongly influenced by factors other than gear transmission errors from among gear noise.
【０００５】この出願の発明は、上記の事情に鑑みて、
その課題を解決するためになされたもので、その目的
は、測定音中の特定のノイズ成分がどのような要因の影
響を強く受けているのか識別できるギヤノイズ計測方法
を提供することにある。更に詳細には、ギヤノイズ中の
特定のノイズ成分が、歯車やそれに関連する部分の影響
を受けるものか、他の影響によるものかを識別できるも
のとして、詳細には、シャフト、軸受、それらの組付け
誤差に基づいて発生する歯車に関係したノイズ成分か、
ケースの共振や周囲騒音などの影響を受ける間接要因に
よるノイズ成分かを計測、層別可能とし、歯車に関係す
るギヤノイズ測定の確度の向上を図ることを目的とする
ものである。In view of the above circumstances, the invention of this application is
The present invention has been made in order to solve the problem, and an object thereof is to provide a gear noise measuring method capable of identifying what factor a specific noise component in a measurement sound is strongly influenced by. More specifically, it is possible to distinguish whether a specific noise component in gear noise is influenced by a gear or its related portion or another influence, and in particular, a shaft, a bearing, or a combination thereof. Is it a noise component related to the gear generated based on the attachment error,
The purpose of the present invention is to improve the accuracy of gear noise measurement related to gears by enabling measurement and stratification of noise components due to indirect factors affected by case resonance and ambient noise.
【０００６】[0006]
【課題を解決するための手段】 上記の目的を達成する
ため、本発明のギヤノイズ計測方法は、歯車の伝達誤差
を反映する速度むらと、ギヤノイズの音圧とを同時に測
定し、得られたそれぞれの信号波形を歯車の回転数でト
ラッキングして比較することにより、ギヤノイズ中の特
定のノイズ成分の発生要因を、歯車の伝達誤差の影響を
受ける要因と、歯車の伝達誤差以外の影響を受ける要因
とに層別することを主たる特徴とする。Means for Solving the Problems In order to achieve the above object, a gear noise measuring method according to the present invention is obtained by simultaneously measuring speed irregularity reflecting gear transmission error and sound pressure of gear noise. The signal waveform of the
By racking and comparing, the characteristics in gear noise are
The cause of the constant noise component and the influence of gear transmission error
Factors affected and factors other than gear transmission error
The main feature is to separate into layers .
【０００７】 次に、本発明は、前記速度むらとギヤノ
イズの音圧の測定は、歯車の回転数をスイ−プアップ及
びスイ−プダウンしながら行うことを更なる特徴とす
る。Next, the present invention relates to the speed unevenness and the gear change.
To measure the sound pressure of the noise, sweep up the gear rotation speed and
Another feature is that it is performed while sweeping down .
【０００８】 更に、前記速度むらの信号波形は、互い
に噛合う２つの歯車の一方の歯車の速度むら信号に他方
の歯車の速度むら信号を位相反転させて加算して得られ
る信号波形であることを特徴とする。Further, the signal waveforms of the speed unevenness are mutually
Speed unevenness signal of one of the two gears that mesh with
Is obtained by inverting the phase of the speed variation signal of the gear of
It is characterized in that it has a signal waveform .
【０００９】[0009]
【作用】 前記請求項１記載の構成では、ギヤノイズと
対比する情報として、歯車の伝達誤差を反映する速度む
らの情報が取得される。そして、速度むらから得られる
信号波形の変化と、ギヤノイズから得られる信号波形の
変化が、互いに同期した、単純比較が可能な情報とな
る。更に、得られたそれぞれの信号波形が歯車の回転数
でトラッキングした情報となるため、互いに回転数に同
期した速度むらと音圧のレベルの単純な相互比較が可能
となる。 With the configuration according to the first aspect, as the information to be compared with the gear noise, the information on the speed unevenness that reflects the transmission error of the gear is acquired. And get from the speed unevenness
Changes in the signal waveform and the signal waveform obtained from gear noise
The changes are synchronized with each other and become information that can be compared easily.
It Furthermore, each of the obtained signal waveforms is the number of rotations of the gear.
Since the information is tracked by
Simple intercomparison of desired velocity irregularity and sound pressure level
Becomes
【００１０】 次に、請求項２記載の構成では、回転数
のスイープアップは加速時の特性、スイープダウンは減
速時の特性を計測するためのものとなる。 Next, in the configuration according to claim 2, the number of rotations
Sweep-up is the characteristic at acceleration, sweep-down is less
It is for measuring the characteristics at high speed.
【００１１】 また、請求項３記載の構成では、互いに
噛合う２つの歯車の加算速度むら信号が得られる。 [0011] In the configuration according to claim 3, together
An additive speed unevenness signal of two gears that mesh with each other is obtained.
【００１２】[0012]
【発明の実施の形態】次に、本発明の実施形態を図面を
参照して説明する。図１は本発明を適用したギヤノイズ
計測方法を模式化したフロー図で示す。以下このフロー
図を基に、途中適宜他の図を参照して説明する。この場
合の試験対象となる歯車は、実際に伝動装置に組込まれ
た、互いに噛合う２つの歯車ａ，ｂとする。これらの歯
車ａ，ｂに対して、音の信号の測定においては、センサ
ーにマイクロホンを用いて、伝動装置の近傍の適宜の測
定ポイントに設置して音圧を検出するものとし、速度む
らの信号の測定においては、それぞれの歯車の近傍に設
置して、個々の歯車の回転を光学的又は磁気的に非接触
状態で検出するセンサーからなる速度むら検出器を用い
て、速度むらを検出するものとする。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a flow chart schematically showing a gear noise measuring method to which the present invention is applied. Hereinafter, based on this flow chart, description will be given with reference to other drawings as needed. The gears to be tested in this case are two gears a and b that are actually incorporated in the transmission and mesh with each other. For the measurement of the sound signal for these gears a and b, a microphone is used as a sensor and the sound pressure is detected by installing the sound pressure sensor at an appropriate measurement point near the transmission device. In the measurement of, the speed unevenness detector that is installed near each gear and detects the rotation of each gear in a non-contact state optically or magnetically is used to detect the speed unevenness. And
【００１３】こうしたセンサー配置の基に、伝動装置の
出力側に適宜の負荷をかけた状態で駆動手段を用いて入
力側から駆動する。この駆動手段による駆動は、図２の
運転パターンを参照して、（ａ）に示すように、０回転
から所定の最高回転（本実施形態において１３００ｒｐ
ｍ）まで所定勾配でスイープアップし、次に、（ｂ）に
示すように、最高回転から０回転まで同勾配でスイープ
ダウンするものとする。この回転数のスイープアップは
加速時の特性、スイープダウンは減速時の特性を計測す
るためのものである。Based on such a sensor arrangement, the output side of the transmission is driven from the input side by using the drive means while an appropriate load is applied. The drive by this drive means is, as shown in FIG. 2A, referring to the operation pattern of FIG. 2, from 0 rotation to a predetermined maximum rotation (1300 rp in the present embodiment).
m) is swept up with a predetermined gradient, and then, as shown in (b), it is swept down with the same gradient from the maximum rotation to 0 rotations. The sweep-up of the rotation speed is for measuring the characteristic during acceleration, and the sweep-down is for measuring the characteristic during deceleration.
【００１４】前記のスイープアップ及びスイープダウン
の途中で、速度むらと音圧を連続的又は所定の回転数又
は時間間隔毎に検出する。こうして得られる速度むら検
出回路の信号と音圧検出回路の音圧信号を基に、前記の
運転パターンの回転数信号に同期させて回転数同期回路
で得られる波形は、例えば、一方の歯車ａについては、
図３（ａ）に示すような回転数に同期した速度むら信号
Ａとなり、他方の歯車ｂについては、図３（ｂ）に示す
ような回転数に同期した速度むら信号Ｂとなる。また、
音圧信号については、図３（ｃ）に示すような回転数に
同期した音圧信号Ｅとなる。During the sweep-up and sweep-down, the speed irregularity and the sound pressure are detected continuously or at predetermined rotation speeds or time intervals. Based on the signal of the speed unevenness detection circuit and the sound pressure signal of the sound pressure detection circuit thus obtained, the waveform obtained by the rotation speed synchronizing circuit in synchronization with the rotation speed signal of the above-mentioned operation pattern is, for example, one gear a about,
A speed unevenness signal A synchronized with the rotation speed as shown in FIG. 3A is obtained, and a speed unevenness signal B synchronized with the rotation speed as shown in FIG. 3B is obtained for the other gear b. Also,
The sound pressure signal is a sound pressure signal E synchronized with the rotation speed as shown in FIG.
【００１５】ここで、他方の歯車ｂの信号について反転
回路を通して位相を反転させた逆相信号Ｂとし、加算回
路で一方の歯車ａの速度むら信号Ａに加算する。これに
より加算速度むら信号Ｃ＝Ａ−Ｂが得られる。こうして
個々に得られた速度むら信号Ｃと音圧信号Ｅを周波数分
析回路を通して、それぞれ周波数分析速度むら信号Ｄ
と、周波数分析音圧信号Ｆとする。この場合の周波数分
析速度むら信号Ｄは、例えば図４（ａ）に示す波形とな
る。また、周波数分析音圧信号Ｆは、例えば図４（ｂ）
に示す波形となる。最後に比較演算処理回路で、必要回
転域における周波数分析速度むら信号Ｄと周波数分析音
圧信号Ｆの波形比較を行なう。Here, the signal of the other gear b is inverted into a reverse phase signal B through an inverting circuit, and is added to the speed nonuniformity signal A of the one gear a by an adder circuit. Thus the addition velocity unevenness signal C = A- B is obtained. The velocity unevenness signal C and the sound pressure signal E individually obtained in this way are passed through a frequency analysis circuit to obtain a frequency analysis velocity unevenness signal D respectively.
And the frequency analysis sound pressure signal F. The frequency analysis speed unevenness signal D in this case has a waveform shown in FIG. 4A, for example. Further, the frequency analysis sound pressure signal F is, for example, as shown in FIG.
The waveform is as shown in. Finally, the comparison operation processing circuit compares the waveforms of the frequency analysis speed unevenness signal D and the frequency analysis sound pressure signal F in the necessary rotation range.
【００１６】図４に示す波形例の場合、周波数分析速度
むら信号Ｄと周波数分析音圧信号Ｆにおいて、低周波数
域における波形が中間部にピークＸ，Ｘ’を持つ概ね同
様の波形となるのに対して、高周波数域における波形
が、周波数分析速度むら信号Ｄにおいて高域ほど信号レ
ベルが下がっているのに対して、周波数分析音圧信号Ｆ
において中間部に２つのピークＹ，Ｚを持つ全く異なる
傾向を呈している。ここで、ギヤノイズとして体感させ
る音は、周波数分析音圧信号Ｆの傾向に従うものである
から、この伝動装置において、ピークＸのノイズ成分は
歯車に関わる部分の影響を強く受けるノイズであり、ピ
ークＹ，Ｚのノイズ成分は、その基がたとえ歯車に関わ
る部分の振動にあるとしても、それが伝動装置ケースの
共振等により音圧増幅された他の影響を強く受けるノイ
ズということになる。In the case of the waveform example shown in FIG. 4, in the frequency analysis velocity unevenness signal D and the frequency analysis sound pressure signal F, the waveforms in the low frequency range are substantially similar waveforms having peaks X and X'in the middle part. On the other hand, the waveform of the frequency analysis speed unevenness signal D has a lower signal level in the higher frequency range, whereas the waveform of the frequency analysis sound pressure signal F has a lower level.
Shows a completely different tendency with two peaks Y and Z in the middle part. Here, since the sound to be felt as gear noise follows the tendency of the frequency analysis sound pressure signal F, in this transmission, the noise component of the peak X is the noise strongly influenced by the part related to the gear, and the peak Y The noise components of Z, Z are noises that are strongly affected by other effects that are amplified by sound pressure due to resonance of the transmission case and the like, even if the basis thereof is vibration of a portion related to the gear.
【００１７】 前記の判定を一般化していえば、音の出
力の回転次数比分析の信号波形の変化の形状と速度むら
の出力の回転次数比分析の信号波形の変化の形状がほぼ
同じような形状である周波数域部分は、歯車が組込まれ
た伝動装置のシャフト、ベアリング及びそれらの組付け
誤差など、歯車に関係している部分がギヤノイズ中の特
定のノイズ成分の発生に強く影響している要因となって
いる。If the above determination is generalized, the shape of the change in the signal waveform of the rotational order ratio analysis of the sound output and the shape of the change of the signal waveform of the rotational order ratio analysis of the output of speed unevenness are substantially the same. frequency range portion is a shaft of the transmission the gear is incorporated, such as bearings and assembly error thereof, the portion that is associated to the gear is strongly influence the occurrence of a particular noise components in formic ya noise Has become a factor.
【００１８】また、音の出力の回転次数比分析の信号波
形の変化の形状と速度むらの出力の回転次数比分析の信
号波形の変化の形状が非常に違う形状である周波数域部
分は、伝動装置ケース等の共振など歯車に関係しない部
分がギヤノイズ中の特定のノイズ成分の発生に強く影響
している要因となっている。In addition, the frequency range portion in which the shape of the change in the signal waveform of the rotational order ratio analysis of the sound output and the shape of the change of the signal waveform of the rotational order ratio analysis of the output of speed unevenness are very different is A part that is not related to gears, such as resonance of a device case, is a factor that strongly influences generation of a specific noise component in gear noise.
【００１９】したがって、上記の分析結果を踏まえて、
ギヤノイズの影響要因を特定し、特定された影響要因に
応じた適切な防振又は制振対策を施すことで、ギヤノイ
ズを低減することができるようになる。これにより、従
来のようにギヤノイズの影響要因が他の部分にあるにも
関わらず歯車関連部分の対策に終始し、ギヤノイズの低
減に苦慮するといった非能率を改善することができる。Therefore, based on the above analysis results,
The gear noise can be reduced by identifying the influencing factors of the gear noise and taking appropriate vibration damping or damping measures according to the identified influencing factors. As a result, it is possible to improve the inefficiency in that the gear noise-related portion is always dealt with and the gear noise is difficult to reduce despite the fact that the gear noise influence factor is in another portion as in the conventional case.
【００２０】[0020]
【発明の効果】本発明によれば、音の信号と速度むらの
信号を使用してそれぞれの信号波形を回転数で比較する
ことにより、対策を要するギヤノイズが、歯車関連部分
の影響を強く受けているものか、あるいは他の要因の影
響を受けるものかを層別できる。これによって、ギヤノ
イズの適切な低減対策が可能となる。According to the present invention, by comparing the respective signal waveforms at the number of revolutions by using the sound signal and the speed unevenness signal, gear noise requiring countermeasures is strongly influenced by the gear-related portion. Can be stratified as to whether they are affected or affected by other factors. This makes it possible to take appropriate measures to reduce gear noise.
【図１】本発明の実施形態に係るギヤノイズ計測方法を
模式化したフロー図である。FIG. 1 is a schematic flow chart of a gear noise measuring method according to an embodiment of the present invention.
【図２】実施形態のギヤノイズ計測方法における運転パ
ターンを示すグラフであり、（ａ）は加速パターン、
（ｂ）は減速パターンを示す。FIG. 2 is a graph showing an operation pattern in the gear noise measuring method of the embodiment, in which (a) is an acceleration pattern,
(B) shows a deceleration pattern.
【図３】 検出信号を回転数でトラッキングして得られ
る波形を示す波形図であり、（ａ）は速度むら信号Ａ、
（ｂ）は速度むら信号Ｂ、（ｃ）は音圧信号Ｃを示す。[Figure 3] is a waveform diagram showing a waveform obtained by tiger Tsu King at a rotation speed of the detection signal, (a) shows the velocity unevenness signal A,
(B) shows the velocity unevenness signal B, and (c) shows the sound pressure signal C.
【図４】回転次数比分析後の信号波形を示す波形図であ
り、（ａ）は速度むら信号Ｄ、（ｂ）は音圧信号Ｆを示
す。FIG. 4 is a waveform diagram showing a signal waveform after analysis of a rotational order ratio, in which (a) shows a velocity unevenness signal D and (b) shows a sound pressure signal F.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 外山 泰裕 愛知県渥美郡田原町緑が浜字２号２番地 アイシン・エィ・ダブリュ精密株式会 社内 (56)参考文献 特開 平10−274558（ＪＰ，Ａ) 特開 昭56−19414（ＪＰ，Ａ) 特開 昭64−68635（ＪＰ，Ａ) 特開 昭54−151489（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) G01M 13/02 G01H 3/00 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasuhiro Toyama No. 2 Midorigahama, No. 2 Midorihama, Tahara-cho, Atsumi-gun, Aichi Prefecture In-house (56) Reference JP 10-274558 (JP, A) JP-A-56-19414 (JP, A) JP-A-64-68635 (JP, A) JP-A-54-151489 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) G01M 13/02 G01H 3/00
Claims (3)
ギヤノイズの音圧とを同時に測定し、得られたそれぞれ
の信号波形を歯車の回転数でトラッキングして比較する
ことにより、ギヤノイズ中の特定のノイズ成分の発生要
因を、歯車の伝達誤差の影響を受ける要因と、歯車の伝
達誤差以外の影響を受ける要因とに層別することを特徴
とするギヤノイズ計測方法。1. A speed unevenness reflecting a transmission error of a gear,
The sound pressure of the gear noise and the sound pressure were measured at the same time.
Track the signal waveforms of the gears by the number of rotations of the gear and compare
Therefore, it is necessary to generate a specific noise component in gear noise.
Factors that are affected by gear transmission error and gear transmission
A method for measuring gear noise, characterized in that it is stratified into factors that affect other than the reach error .
は、歯車の回転数をスイ−プアップ及びスイ−プダウン
しながら行う、請求項１記載のギヤノイズ計測方法。 2. Measurement of sound pressure of the speed unevenness and gear noise
Sweeps up and down the speed of the gear
The method for measuring gear noise according to claim 1, which is performed while the method is performed.
う２つの歯車の一方の歯車の速度むら信号に他方の歯車
の速度むら信号を位相反転させて加算して得られる信号
波形である、請求項１又は２記載のギヤノイズ計測方
法。 3. The signal waveforms of the speed unevenness mesh with each other.
The speed unevenness signal of one of the two gears is applied to the other gear.
Signal obtained by inverting and adding the speed unevenness signals of
The method for measuring gear noise according to claim 1 or 2, which has a waveform
Law.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001054076A JP3478275B2 (en) | 2001-02-28 | 2001-02-28 | Gear noise measurement method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001054076A JP3478275B2 (en) | 2001-02-28 | 2001-02-28 | Gear noise measurement method |
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| Publication Number | Publication Date |
|---|---|
| JP2002257685A JP2002257685A (en) | 2002-09-11 |
| JP3478275B2 true JP3478275B2 (en) | 2003-12-15 |
Family
ID=18914460
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001054076A Expired - Fee Related JP3478275B2 (en) | 2001-02-28 | 2001-02-28 | Gear noise measurement method |
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| Country | Link |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3853807B2 (en) | 2003-08-28 | 2006-12-06 | 本田技研工業株式会社 | Sound vibration analysis apparatus, sound vibration analysis method, computer-readable recording medium recording sound vibration analysis program, and program for sound vibration analysis |
| JP6806754B2 (en) * | 2018-11-13 | 2021-01-06 | ファナック株式会社 | Machine tool and vibration diagnosis support method |
| CN109916620B (en) * | 2019-04-17 | 2020-08-25 | 哈尔滨理工大学 | Gear drive noise detection and analysis system |
| CN115031678B (en) * | 2022-06-13 | 2023-04-28 | 北京工业大学 | Noise gear screening method based on tooth profile waviness information and gear transmission error information |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54151489A (en) * | 1978-05-19 | 1979-11-28 | Komatsu Mfg Co Ltd | Damage detector for rotary machine |
| JPS5619414A (en) * | 1979-04-17 | 1981-02-24 | Aida Eng Ltd | Analysing method for gear noise |
| JPS6468635A (en) * | 1987-09-09 | 1989-03-14 | Ono Sokki Co Ltd | Gear testing device |
| JP3449194B2 (en) * | 1997-01-28 | 2003-09-22 | 松下電工株式会社 | Method and apparatus for diagnosing abnormalities in rotating equipment |
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2001
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