冲压空气转换活门管路消声器特性研究

来源 :LMS公司 | 被引量 : 0次 | 上传用户：silverfox

【摘要】

：

本文基于多孔材料Delany-Bazley 经验模型及传递矩阵法，根据飞机环境系统冲压空气转换活门管路消声器声衬结构、尺寸参数及其内部温度分布特性，将声衬分为若干层，研究了温度梯度对声衬结构的吸声特性的影响，并在该声衬结构的表面声阻抗特性的基础上，采用Virtual.Lab-FEM 模块管路模态分析理论研究了冲压空气转换活门管路消声器声衬处理的支撑件对消声器性能的特性，并与一维分析工具分析

【作者】

：

孙新波孙学德

【机构】

：

上海飞机设计研究院动力燃油系统设计研究部，上海,200232 上海飞机设计研究院环控系统设计研

【出处】

：

LMS公司

【发表日期】

：

2012年3期

【关键词】

：

Delany-Bazley 模型传递矩阵法 CFD 计算声衬温度分布消声器IL

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

其他文献

A Self-Starting Chart to Monitor Abrupt Changes in General Linear Profiles

A self-starting monitoring scheme is proposed in this paper for simultaneous detection of variance and coefficients in linear profiles with unknown error distribution.

会议

SPCWald-type statisticlinear profileself-starting

Matrix-free REML for Linear Spatial-temporal State-space Models using H-likelihood Methods

We combines Besags spatial-temporal Gaussian autoregressions within a state-space model and presents a novel matrix-free h-likelihood method for statistical inference.

会议

H-likelihoodKalman filterLanczos algorithmMatrix-free computationState space

ROBUST RIDGE REGRESSION ESTIMATORS FOR NONLINEAR MODELS WITH APPLICATIONS TO HIGH THROUGHPUT SCREENI

Nonlinear regression is often used to evaluate the toxicity of a chemical or a drug by fitting data from a dose-response study.

会议

doseresponseHTS assayM-estimationpharmacologyridge regressiontoxicology

A FALSE DISCOVERY APPROACH FOR SCANNING SPATIAL DISEASE CLUSTERS WITH ARBITRARY SHAPES

The spatial scan statistic is one of the main tools for testing the presence of clusters in a geographical region.

会议

Poisson distributionscan statisticsfalse discovery ratesimple linear step-up

Integrating genotype and phenotype data to uncover therapeutic targets and markers in cancer

We integrated microarray gene expression data(GED),668 published synthetic lethal(SL)gene pairs,protein expression data(immunohistochemistry(IHC))and patients clinical factors to uncover novel treatme

会议

lung adenocarcinomaTP53prognosis markersynthetic lethalgene expression data

Seasonal Precipitation Prediction via Data-Adaptive Principal Component Regression

This talk studies a problem of predicting seasonal precipitation over East Asia from real observations and multi-model ensembles.

会议

Data-adaptive principal component analysisHigh-dimensional dataPrecipitationP

Trimmed estimators for large dimensional sparse covariance matrices

In this paper we will propose two new estimators for sparse covariance matrix.Our starting point is to make the estimator of each element of covariance matrix more robust.

会议

covariance matrixsparsethresholdingtrimmed estimator

Quantile regression for partially linear varying-coefficient model with censoring indicators missing

In this paper,we focus on the partially linear varying-coefficient quantile regression model when the data are right censored and the censoring indicators of right censored data are missing at random.

会议

Quantile regressionpartially linear varying-coefficient modelvariable selectio

Readmission Time Analysis for Psychiatry Patients Based on a Chi-Squared Goodness of Fit Test for Re

Hospitalizations account for one-third of the annual healthcare costs in the USA.A large percentage of hospital readmissions can be avoided or prevented.

会议

Recurrent EventsGoodness of fit Tests

A generalized fiducial approach for estimation and testing of survival function under right censorin

We present a new approach for inference for the survival function from right censored data applicable to both one sample and two sample cases.

会议

Generalized fiducial inferenceRight censored dataKaplan-Meier estimatorLog-ra

冲压空气转换活门管路消声器特性研究

与本文相关的学术论文