外國公司的官網——高端大氣上檔次

掃街

EPI公司是由英國羅羅公司、德國MTU公司、西班牙ITP公司和法國的賽峰集團聯(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運輸機的TP400發(fā)動機供應商

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

solidworks建模的發(fā)動機

實物


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.
不過最讓人口水直流的就是工程師的辦公室


點評：
洋人當然用三維，也用有限元，但人家更有完美的試驗測量系統(tǒng)。

mecheng

中國人用來畫圖，外國人用來設計。

mecheng

飛機上用活塞機？不都是噴氣機嗎？

原諒我今天

人家國外做FEA都是靠大量實驗數(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上的。

黃亨瑞

V12四渦輪，
Supercar的發(fā)動機呀！

黃亨瑞

電腦硬件差別不會太大。
9年前，
天津一家工裝設計公司，
就一個人兩個大液晶。

zerowing

羅技的M510無線鼠和XX無線鍵盤。促銷價50刀。哈哈哈
這個顯示器有點意思，俺想知道這什么顯卡有三個輸出口

無獨有偶

現(xiàn)在A160小型機售價160W，包教包會，學好以后可以給土豪朋友當司機了。
想學的可以聯(lián)系我，哈哈��！

（�。┘拍�的心

我想知道這個曲軸的材料不會也是鋁合金的吧，曲軸鑄造出來怎么加工的，一次裝夾能實現(xiàn)全部加工嗎？兩次裝夾的定位精度怎么保證，中國能搞這玩意嗎？

zdd5254

國內公司和國外公司  內部資源的配備問題和人員的差別