外國(guó)公司的官網(wǎng)——高端大氣上檔次

掃街

EPI公司是由英國(guó)羅羅公司、德國(guó)MTU公司、西班牙ITP公司和法國(guó)的賽峰集團(tuán)聯(lián)合組建的合資公司，其中賽峰、羅羅和MTU各占28%的股份。歐洲空客軍事公司和A400M運(yùn)輸機(jī)的TP400發(fā)動(dòng)機(jī)供應(yīng)商

http://www.epi-eng.com/epi_general_information/summary_epi_specialties.htm

solidworks建模的發(fā)動(dòng)機(jī)

實(shí)物


We begin by analyzing the requirements of a system with basic engineering procedures. We use hand calculations, purchased software (such as our Computational Fluid Dynamics package for aerodynamic bodies and passages, our Piston Engine Simulation package, the results of which typically match dyno test results within 3-5%), as well as software designed and developed in-house for the analysis of vibration and resonance, dynamic loading in geared systems, spline loadings, flight loads, and many other specialized areas.

Using constraints and requirements developed from preliminary analysis, we design components, assemblies and systems using powerful 3D-CAD modeling software (SOLIDWORKS™), followed by detailed Finite Element Analysis (COSMOS™) to determine the stresses and strains components will endure under the expected loadings. This cycle is repeated until a suitable level of performance and reliability can be predicted from the analysis.
We also provide top-grade 3D-CAD modelling, Finite Element Analysis of components, Engineering Drawings, and Technical Writing services for clients. We guarantee complete confidentiality of client data, products and ideas.
EPI has years of successful experience in High Performance Engine Development. We use our in-house analysis and testing equipment to develop cylinder heads, manifolds, valvetrain systems, lubrication systems, and accessory systems.
Our Simulation Package uses the properties of the actual engine components (measured port and manifold airflow data, measured cam lobe data, measured valvetrain mass and deflection properties, reciprocating component masses and geometries, etc.) to predict the performance of a specific configuration. DYNO-testing verifies the performance and reliability of the configuration. Software predictions of engine performance often correlate to dyno measurements within 3 percent, and rarely deviate from dyno results by more than 5%. (Larger deviations are almost always the result of bad data in the simulation.)

We offer improvements in the flow level and flow quality for ports and combustion-chambers, detailed measurements of volume-flow vs. valve lift, port velocity-profile mapping, measurement of in-cylinder charge swirl, and mapping and improvement of boundary layer separation, especially on port floors and short-turn radii.
We use a SuperFlow SF-600 Airflow Measurement System with an integrated, fully-computerized Audie Technology Data Acquisition System. Those systems together provide highly repeatable measurements and recording of bidirectional volume-flow, cross-sectional velocity profiles, and charge swirl. The data acquisition software provides comprehensive graphical and textual report formats.
不過(guò)最讓人口水直流的就是工程師的辦公室


點(diǎn)評(píng)：
洋人當(dāng)然用三維，也用有限元，但人家更有完美的試驗(yàn)測(cè)量系統(tǒng)。

mecheng

中國(guó)人用來(lái)畫(huà)圖，外國(guó)人用來(lái)設(shè)計(jì)。

mecheng

飛機(jī)上用活塞機(jī)？不都是噴氣機(jī)嗎？

原諒我今天

人家國(guó)外做FEA都是靠大量實(shí)驗(yàn)數(shù)據(jù)做支撐的，人家的研發(fā)成本很大一部分也是花在試驗(yàn)上的。

黃亨瑞

V12四渦輪，
Supercar的發(fā)動(dòng)機(jī)呀！

黃亨瑞

電腦硬件差別不會(huì)太大。
9年前，
天津一家工裝設(shè)計(jì)公司，
就一個(gè)人兩個(gè)大液晶。

zerowing

羅技的M510無(wú)線鼠和XX無(wú)線鍵盤(pán)。促銷價(jià)50刀。哈哈哈
這個(gè)顯示器有點(diǎn)意思，俺想知道這什么顯卡有三個(gè)輸出口

無(wú)獨(dú)有偶

現(xiàn)在A160小型機(jī)售價(jià)160W，包教包會(huì)，學(xué)好以后可以給土豪朋友當(dāng)司機(jī)了。
想學(xué)的可以聯(lián)系我，哈哈��！

（丁）寂寞的心

我想知道這個(gè)曲軸的材料不會(huì)也是鋁合金的吧，曲軸鑄造出來(lái)怎么加工的，一次裝夾能實(shí)現(xiàn)全部加工嗎？?jī)纱窝b夾的定位精度怎么保證，中國(guó)能搞這玩意嗎？

zdd5254

國(guó)內(nèi)公司和國(guó)外公司  內(nèi)部資源的配備問(wèn)題和人員的差別