Search or add a thesis

Advanced Search (Beta)
Home > Adaptive Soft Computing Strategies for Abs Equipped Full-Car Active Suspension System With Seated-Passengers Biodynamic Virbrations Damping Control

Adaptive Soft Computing Strategies for Abs Equipped Full-Car Active Suspension System With Seated-Passengers Biodynamic Virbrations Damping Control

Thesis Info

Access Option

External Link

Author

Riaz, Shah

Program

PhD

Institute

COMSATS University Islamabad

City

Islamabad

Province

Islamabad.

Country

Pakistan

Thesis Completing Year

2018

Thesis Completion Status

Completed

Subject

Electrical Engineering

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/11170/1/Shah%20Riaz_EE_2018_Comsats_PRR.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676727694120

Similar


Intheexistinghighlymechanizedandtechnologicallyadvancedsociety,thevehicleprovides a key means of communication. Vehicle ride is influenced by road surface roughness. Somedoseofunpleasantwholebodyvibration(WBV)transmittedintothehuman organs causes fatigue and discomfort. Low frequency WBV is injurious and prolonged exposures result in multiple health problems. Increase in vibration creates more health hazards thus reduces human performance. A score of experimental and analytical studiesonseated-driversexposuretolow-frequencyWBVhavedemonstratedintheexisting literature. However,thepublishedliteraturelacksintegratedbiodynamicmodeling. Verification of the models against various external road excitation profiles. And the use of advanced intelligent control strategies for vibration damping and the biodynamic response analysis. Today,theautomobilemanufacturersareconfrontedwithconflictingchallenges,atradeoff between ride quality, vehicle safety, stability, rattle space and wheels deflection limits. WBVdamping,therefore,hasattractedalotofinterestintherecentyears. Anumber of suspension models and control techniques are developed and implemented and few are still under consideration. The work presented in this thesis includes mathematical modeling of the nonlinear fullcar active suspension system with driver and passenger lumped seat model along with anti-lockbrakingsystem(ABS).Themodelingisextendedtovehicle-driverbiodynamic, vehicle-pregnant subject biodynamic and vehicle-driver-pregnant subject biodynamic with ABS and cornering models. These models incorporate all forms of the system motions and nonlinearities. An advanced adaptive NeuroFuzzy control is proposed and developed for vibrations damping and ride comfort improvement. An adaptive recurrent Fuzzy wavelet neural network(ARFWNN)controlalgorithmisalsoproposedtofurtherenhancetheridecomfort of the vehicle occupants.
Loading...
Loading...

Similar Books

Loading...

Similar Chapters

Loading...

Similar News

Loading...

Similar Articles

Loading...

Similar Article Headings

Loading...

سچائی دی برکت

سچائی دی برکت

پرانے وقتاں دی گل اے کہ اک وار حضرت شیخ عبدالقادر جیلانی بال پن وچ علم حاصل کرن لئی اک قافلے دے نال بغداد توں روانہ ہوئے۔ ٹرن ویلے آپ دی والدہ محترمہ نے چالی دینار آپ دی قمیض دے اندر سی دتے تے نصیحت کیتی کہ پتر ہمیشہ سچ بولنا ایں۔ بھانویں کنی وی مشکل کیوں نہ بن جاوے۔ اتفاق دی گل اے کہ رستے وچ اوس قافلے اتے ڈاکواں نے حملہ کر دتا تے سارے بندیاں دا مال کھو لیا۔ جدوں ڈاکو واری واری پر بندے دی تلاشی لے رہے سن تاں اک ڈاکو نے آپ کولوں پچھیا کہ تیرے کول کیہ اے؟ آپ نے جواب دتا میرے کول چالی دینار نیں۔ جو میری والدی نے سفر تے روانہ ہوون توں پہلاں میری قمیض وچ سی دتے سن۔ ڈاکو نے آپ دی ایس گل اتے اعتبار نہ کیتا۔ ہر جدوں ویکھیا تاں واقعی قمیض اندر دینار سن۔ ڈاکو بہت حیران ہویا تے آپ نوں پھڑ کے اپنے سردار کول لے گیا۔ تے ساری گل سردار نوں دسی۔ سردار نے آکھیا۔ توں سچ بول کے اپنی رقم کیوں گوائی۔ جے توں جھوٹ بول دیندا تاں تیرے اُتے کسے نوں شک وی نئیں سی ہونا کہ تیرے کول اینی وڈی رقم اے۔ آپ نے فرمایا کہ میری والدہ نے سفرو شروع کرن ویلے ایہہ نصیحت کیتی سی کہ جھوٹ نئیں بولنا۔ ہمیشہ سچ بولنا ایں۔ میں جھوٹ بول کے اپنے والدہ دے حکم دی خلاف ورزی نئیں کر سکدا۔ ایس جواب نے سردار نوں بہت متاثر کیتا۔ اوس دے دل وچ خیال آیا کہ ایہہ منڈا اپنی ماں دے حکم دی خلاف ورزی نئیں کرسکدا۔ میں اپنے ربّ دا ایناں نافرمان آں کہ اوس دی کوئی وی گل نئیں مندا۔ سردار نے اوسے ویلے سچے دل توں توبہ کیتی تے لٹیا...

Impact of Traditional Values on the Equality of Females Living in Balochistan, Pakistan

Societies follow a traditional value. Traditions evolve and are adapted according to the wish of majority of the people. Cultures mostly are under the disposition of the patriarchal system, a system dominated by men, where women are discriminated and subjugated because they hold a vulnerable position in the society. The present study focuses on equality of women present in Quetta Balochistan, effected by the cultural values present. Data was selected from seven Government Girls degree Colleges of Quetta based on random sampling method. The researcher used SSPS tool to evaluate the data. Results highlighted that cultural values are affecting the females here in Quetta and they are not treated as equals to their male counterparts.

Association of Genetic Variants and Environment With the Risk of Asthma

Asthma and allergy are common and complex diseases often co-occurring within the same individual. Genetic as well as environmental factors such as consanguinity and early sensitization to allergens significantly influence the onset and progress of the disease. Aim of the following study was to investigate the association of environmental factors and selected single nucleotide polymorphisms (SNPs) from candidate genes with asthma in Pakistani population. The studied population consisted of 368 genetically unrelated volunteers. Three SNPs from 2 genes Group Specific Component gene GC (rs4588 and rs7041) and Glutathione S-Transferase P1 gene GSTP1 (rs1695) were selected for genotype analysis by Restriction fragment length polymorphism (RFLP), whereas 15 SNPs form Interleukin 33 gene IL33 (rs1412426, rs1342326, rs992969, rs928413, rs2066362, rs996029, rs10815388, rs10975501, rs17498196, rs10975516, rs10975519, rs7047921, rs1332290, rs16924241 and rs8172) were selected for ABI’s Taqman 7900 genotyping. Mean age was 34.04± 16.30 for males and 33.89±13.15 for females whereas the mean BMI was 22.01±4.04 for males and 23.23±5.21 for females. About 68.20% subjects lived in urban areas and 31.79% lived in rural areas. Parents of 87.5% of the studied population had married within their own caste system, 60.05% of which were first cousins. Family history of Asthma was prevalent in 48.91% of the Asthmatic population. Total 60.86% asthma cases were classified as adult and 39.13% cases were classified as pediatric onset asthma, based on the age at which the diagnosis of asthma was concluded. Asthma severity was based on the percent predicted FEV1 and categorized as intermittent (2.71%), mild persistent (0.54%), moderate persistent (40.21%) and severe persistent (56.52%). Total serum IgE levels were 121±2.91 lU/mI for the control population and 584.2±4.61 lU/mI in asthmatics. Males had higher IgE levels (181IU/ml) than the females (99lU/ml). Amongst the atopic manifestations cough was the most prevalent symptom (82.06%) closely followed by wheeze (80.97%) whereas skin allergies were the least prevalent (22.82%). Seasonal variations were reported to be the most significant asthma trigger (95.65%) followed by dust (72.82%) and food allergies (60.32%). Asthma attacks were more frequent in winter season (57.06%) and in transitional period between changing seasons (48.36%). Only 3.80% reported no seasonal correlations with asthma. Smoking asthmatics constituted 11.41% of the studied asthmatic population whereas 62.5% were exposed to tobacco smoke for long periods of time, 51.08% asthmatics were exposed to tobacco smoke but never smoked themselves. Homeopathic medicine was used by 14.67% and 33.69% turned to Hakeems however; the use of complimentary alternate medication remained the most popular (39.13%) mostly due to the lack of side effects associated with such treatments. Total 18 SNPs from 3 candidate genes were genotyped using RFLP and ABI’s Taqman. RFLP was carried out in 2 genes (GC/VDBP, GSTP1). Significant association of GC/VBDP GC2 homozygote asthma was established (OR = 3.14, 95% CI = 1.786 - 5.535, p = <0.001) through 90% reproducibility. GSTP1 Ile/Ile homozygote showed significant association with asthma (OR = 2.33, 95% CI = 1.347 - 4.043, p = 0.003) in Pakistani population. 15 SNPs from Interleukin-33 were genotyped on the ABI platform. rs17498196 (OR = 1.78, 95% CI = 1.18- 2.68 p = 0.005) and rs992969 (OR = 1.42, 95% CI = 0.99- 2.04 p = 0.05) were significantly associated with the risk of asthma, however the risk becomes non-significant with cousin parents removed rs17498196 (OR = 2.42, 95% CI = 1.23- 4.74 p = 0.01) and rs992969 (OR = 1.41, 95% CI = 0.80- 2.48 p = 0.23) respectively. These results highlight the importance of consanguineous unions in inheritance of asthma as a genetic disorder. LD analysis between the SNPs revealed strong linkage disequilibrium between rs10975516, rs10975519, rs7047921 and rs1332290 even with cousin parents removed remaining good predictors of each other. rs1412426, rs1342326, rs992969 and rs928413 showed moderate LD which further decreased with cousin parents removed, implicating consanguinity in the inheritance of asthma risk allele.